LegalizeDAG.cpp revision aa975c1c4785a1d7930f2cd1026cb40ce54d21e4
13e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===-- LegalizeDAG.cpp - Implement SelectionDAG::Legalize ----------------===// 2edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 33e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// The LLVM Compiler Infrastructure 43e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 53e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// This file was developed by the LLVM research group and is distributed under 63e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// the University of Illinois Open Source License. See LICENSE.TXT for details. 7edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 83e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 93e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// This file implements the SelectionDAG::Legalize method. 113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/CodeGen/SelectionDAG.h" 153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/CodeGen/MachineFunction.h" 1645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner#include "llvm/CodeGen/MachineFrameInfo.h" 17acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey#include "llvm/CodeGen/MachineJumpTableInfo.h" 183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Target/TargetLowering.h" 19e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner#include "llvm/Target/TargetData.h" 203d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng#include "llvm/Target/TargetMachine.h" 210f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner#include "llvm/Target/TargetOptions.h" 22adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 245e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/MathExtras.h" 255e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 26a4f0b3a084d120cfc5b5bb06f64b222f5cb72740Chris Lattner#include "llvm/Support/Compiler.h" 27f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner#include "llvm/ADT/SmallVector.h" 28033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng#include <map> 293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 315e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#ifndef NDEBUG 325e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic cl::opt<bool> 335e46a19ec848cd4fc9649bd5170c43d9e657668cChris LattnerViewLegalizeDAGs("view-legalize-dags", cl::Hidden, 345e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner cl::desc("Pop up a window to show dags before legalize")); 355e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#else 365e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic const bool ViewLegalizeDAGs = 0; 375e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#endif 385e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 52360e8200ec544a3c877ff74b48f445140ac9bbd6Chris Lattnerclass VISIBILITY_HIDDEN SelectionDAGLegalize { 533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand LastCALLSEQ_END; 626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 6968a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 7068a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 71d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 7768a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::map<SDOperand, SDOperand> LegalizedNodes; 833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8403c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 8503c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 8603c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 8703c8546ec57523970874917854a2fb77b1ff598eChris Lattner std::map<SDOperand, SDOperand> PromotedNodes; 8803c8546ec57523970874917854a2fb77b1ff598eChris Lattner 89c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 90c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 91c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes; 933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 94c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 95c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 96c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 97c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes; 98c7029805ef35ce9805931067b841e6af11db382eChris Lattner 99c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PackedNodes - For nodes that need to be packed from MVT::Vector types to 100c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// concrete packed types, this contains the mapping of ones we have already 101c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 102c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, SDOperand> PackedNodes; 103c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1048afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner void AddLegalizedOperand(SDOperand From, SDOperand To) { 10569a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 10669a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 10769a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 10869a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 1098afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 11003c8546ec57523970874917854a2fb77b1ff598eChris Lattner void AddPromotedOperand(SDOperand From, SDOperand To) { 11103c8546ec57523970874917854a2fb77b1ff598eChris Lattner bool isNew = PromotedNodes.insert(std::make_pair(From, To)).second; 11203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 11369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11469a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 11503c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1168afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1199c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner SelectionDAGLegalize(SelectionDAG &DAG); 1203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 1243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizeAction getTypeAction(MVT::ValueType VT) const { 12568a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 1303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isTypeLegal(MVT::ValueType VT) const { 1313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 136456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 137c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// HandleOp - Legalize, Promote, Expand or Pack the specified operand as 138c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 139c7029805ef35ce9805931067b841e6af11db382eChris Lattner void HandleOp(SDOperand Op); 140c7029805ef35ce9805931067b841e6af11db382eChris Lattner 141c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 142c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 143c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 1443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LegalizeOp(SDOperand O); 145c7029805ef35ce9805931067b841e6af11db382eChris Lattner 146c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 147c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 148c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 149c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 150c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 15103c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 153c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 154c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 155c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 156c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 157c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 158c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 159c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 160c7029805ef35ce9805931067b841e6af11db382eChris Lattner 161c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitVectorOp - Given an operand of MVT::Vector type, break it down into 162c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// two smaller values of MVT::Vector type. 163c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 164c7029805ef35ce9805931067b841e6af11db382eChris Lattner 165c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PackVectorOp - Given an operand of MVT::Vector type, convert it into the 166c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// equivalent operation that returns a packed value (e.g. MVT::V4F32). When 167c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// this is called, we know that PackedVT is the right type for the result and 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// we know that this type is legal for the target. 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand PackVectorOp(SDOperand O, MVT::ValueType PackedVT); 170c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1724352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1734352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1744352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1754352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1764352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1774352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1784352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1794352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 1804352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDNode *isShuffleLegal(MVT::ValueType VT, SDOperand Mask) const; 1814352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 182c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 183c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner std::set<SDNode*> &NodesLeadingTo); 1846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 185750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 186750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 187ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CreateStackTemporary(MVT::ValueType VT); 188ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 18977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandLibCall(const char *Name, SDNode *Node, 19077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 19177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 19277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 193cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 19435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand ExpandBIT_CONVERT(MVT::ValueType DestVT, SDOperand SrcOp); 195ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 1964352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 1976269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 1986269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 1996269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 2005a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 2015a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 2021618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 2031618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 20400b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 205456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 206456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 207e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 208e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2095b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2105b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 211b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2121597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand LowerVEXTRACT_VECTOR_ELT(SDOperand Op); 2134aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2141597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 2153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand getIntPtrConstant(uint64_t Val) { 2163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return DAG.getConstant(Val, TLI.getPointerTy()); 2173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2224352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2234352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 2274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDNode *SelectionDAGLegalize::isShuffleLegal(MVT::ValueType VT, 2284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand Mask) const { 2294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::getVectorNumElements(NVT) / MVT::getVectorNumElements(VT); 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 245bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 257bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 266c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// getScalarizedOpcode - Return the scalar opcode that corresponds to the 267c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// specified vector opcode. 268b89175feffa7148c05d1d30a8e382b8d321edae5Chris Lattnerstatic unsigned getScalarizedOpcode(unsigned VecOp, MVT::ValueType VT) { 2695fbb5d2459a5410590f285250faa604576308a93Nate Begeman switch (VecOp) { 2705fbb5d2459a5410590f285250faa604576308a93Nate Begeman default: assert(0 && "Don't know how to scalarize this opcode!"); 2713e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VADD: return MVT::isInteger(VT) ? ISD::ADD : ISD::FADD; 2723e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VSUB: return MVT::isInteger(VT) ? ISD::SUB : ISD::FSUB; 2733e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VMUL: return MVT::isInteger(VT) ? ISD::MUL : ISD::FMUL; 2743e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VSDIV: return MVT::isInteger(VT) ? ISD::SDIV: ISD::FDIV; 2753e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VUDIV: return MVT::isInteger(VT) ? ISD::UDIV: ISD::FDIV; 2763e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VAND: return MVT::isInteger(VT) ? ISD::AND : 0; 2773e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VOR: return MVT::isInteger(VT) ? ISD::OR : 0; 2783e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VXOR: return MVT::isInteger(VT) ? ISD::XOR : 0; 2795fbb5d2459a5410590f285250faa604576308a93Nate Begeman } 2805fbb5d2459a5410590f285250faa604576308a93Nate Begeman} 2813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2829c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2839c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2849c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2856a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 28932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner/// ComputeTopDownOrdering - Add the specified node to the Order list if it has 29032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner/// not been visited yet and if all of its operands have already been visited. 29132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattnerstatic void ComputeTopDownOrdering(SDNode *N, std::vector<SDNode*> &Order, 29232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner std::map<SDNode*, unsigned> &Visited) { 29332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner if (++Visited[N] != N->getNumOperands()) 29432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner return; // Haven't visited all operands yet 29532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 29632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner Order.push_back(N); 29732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 29832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner if (N->hasOneUse()) { // Tail recurse in common case. 29932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner ComputeTopDownOrdering(*N->use_begin(), Order, Visited); 30032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner return; 30132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 30232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 30332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Now that we have N in, add anything that uses it if all of their operands 30432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // are now done. 30532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); UI != E;++UI) 30632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner ComputeTopDownOrdering(*UI, Order, Visited); 30732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 30832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3091618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 314ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 315ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 316ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 317ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 31832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 31932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 32032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner std::map<SDNode*, unsigned> Visited; 32132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner std::vector<SDNode*> Order; 322ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 32332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 32432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // entry node) that have no operands. 32532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 32632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner E = DAG.allnodes_end(); I != E; ++I) { 327de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner if (I->getNumOperands() == 0) { 328de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner Visited[I] = 0 - 1U; 329de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner ComputeTopDownOrdering(I, Order, Visited); 330ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner } 331ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner } 332ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 333de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner assert(Order.size() == Visited.size() && 334de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner Order.size() == 335de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 33632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner "Error: DAG is cyclic!"); 33732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner Visited.clear(); 338ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 339c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 340c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 34132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 34232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 34432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 34532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 34971c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 350c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 351c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackedNodes.clear(); 3523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 354190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 4056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 4066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 4076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 412c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 413c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 414c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 415c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 416c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 417c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner std::set<SDNode*> &NodesLeadingTo) { 4186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 420c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 421c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 422c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 423c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 443c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 445c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 446c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 447c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 448c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 45180edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 455c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// HandleOp - Legalize, Promote, Expand or Pack the specified operand as 456c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 457c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 458c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (getTypeAction(Op.getValueType())) { 459c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 460c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Legal: LegalizeOp(Op); break; 461c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Promote: PromoteOp(Op); break; 462c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 463c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (Op.getValueType() != MVT::Vector) { 464c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 465c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 466c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 467c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *N = Op.Val; 468c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumOps = N->getNumOperands(); 469c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = 470c7029805ef35ce9805931067b841e6af11db382eChris Lattner cast<ConstantSDNode>(N->getOperand(NumOps-2))->getValue(); 471c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(N->getOperand(NumOps-1))->getVT(); 472c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType PackedVT = getVectorType(EVT, NumElements); 473c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (PackedVT != MVT::Other && TLI.isTypeLegal(PackedVT)) { 474c7029805ef35ce9805931067b841e6af11db382eChris Lattner // In the common case, this is a legal vector type, convert it to the 475c7029805ef35ce9805931067b841e6af11db382eChris Lattner // packed operation and type now. 476c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Op, PackedVT); 477c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else if (NumElements == 1) { 478c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Otherwise, if this is a single element vector, convert it to a 479c7029805ef35ce9805931067b841e6af11db382eChris Lattner // scalar operation. 480c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Op, EVT); 481c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 482c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Otherwise, this is a multiple element vector that isn't supported. 483c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Split it in half and legalize both parts. 484c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 4854794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SplitVectorOp(Op, X, Y); 486c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 487c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 488c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 489c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 490c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4929f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 4939f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 4949f87788040786b1bc6530763e4cf7e105bfb2924Evan Chengstatic SDOperand ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 495279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 496004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 497004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 498004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 499004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 500004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 501004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // double. 502004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng MVT::ValueType VT = CFP->getValueType(0); 503004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool isDouble = VT == MVT::f64; 504004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFP *LLVMC = ConstantFP::get(isDouble ? Type::DoubleTy : 505004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Type::FloatTy, CFP->getValue()); 5069f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 507279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng double Val = LLVMC->getValue(); 508279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng return isDouble 509279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng ? DAG.getConstant(DoubleToBits(Val), MVT::i64) 510279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng : DAG.getConstant(FloatToBits(Val), MVT::i32); 511279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 512279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 513004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (isDouble && CFP->isExactlyValue((float)CFP->getValue()) && 514004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Only do this if the target has a native EXTLOAD instruction from f32. 515004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, MVT::f32)) { 516004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC,Type::FloatTy)); 517004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng VT = MVT::f32; 518004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Extend = true; 519004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 520004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 521004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 522004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (Extend) { 523004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 524004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng CPIdx, NULL, 0, MVT::f32); 525004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } else { 526004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 527004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 528004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 529004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 531c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// LegalizeOp - We know that the specified value has a legal type. 532c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// Recursively ensure that the operands have legal types, then return the 533c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// result. 5343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 535c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 536e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 53745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 538e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 5393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 540e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 54145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 54245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 543c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 544c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 5453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 546c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 54703c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 5483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 55145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 55245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 553e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::map<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 554e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 5553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 5569373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 5573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 558456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 559456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 5603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 561948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 562948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 563948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 564948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 565948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 56637efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 567948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 5683181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 569948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 570948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 571948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 572948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 573948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 574948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 575948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 57682c3d8f81ab20dc7571f29ffc46a5bb1b7ed8323Andrew Lenharth case ISD::GLOBAL_OFFSET_TABLE: 577948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 578948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner assert(TLI.isOperationLegal(Node->getValueType(0), Node->getValueType(0)) && 579948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 580948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 5813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 582d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 583d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 584d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 585f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 586c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 587d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 588c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 589f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 590d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 591d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 592d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 593d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 594d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 595d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 596e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 597832171cb9724d2d31c8dfb73172e2be8f6dd13eeBill Wendling cerr << "NODE: "; Node->dump(); cerr << "\n"; 598e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 5993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 6003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 6013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 60203c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 60337efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 60437efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 6050c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 6060c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 607948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 608948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 609948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 610948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 6110c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 6120c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 6130c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 6143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 61508951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 61608951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 61708951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 618c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 61908951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 620308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 621c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 622456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 623456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 62469a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 62569a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 6267310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 627f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 628c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 6297310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 630f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 631c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 632f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 633c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 634c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 635c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 636c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 6377310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 6387310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 63913c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 64013c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 64113c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 64213c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 64313c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 644fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 645fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 646fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 647ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 648ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 649fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 650fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 651fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 652fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstantFP(0, VT); 653fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 654fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 655fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 656ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 657fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 658fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 659fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 660fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 661d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 66248b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 66348b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 66448b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 665f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 666d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 667d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 668f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 66910d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 67010d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 67148b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 67210d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 67310d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 67410d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 67513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 67613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 67713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 67813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 67913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 68013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 68113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 68213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 68313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 68413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 68513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 68613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 68713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 688d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 68936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 69036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 69136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 69236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 69336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 69436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 69536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 69636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 697f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 698b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey MachineDebugInfo *DebugInfo = DAG.getMachineDebugInfo(); 699abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 700abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LABEL = TLI.isOperationLegal(ISD::DEBUG_LABEL, MVT::Other); 701abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 702abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (DebugInfo && (useDEBUG_LOC || useDEBUG_LABEL)) { 703abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 704e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 705abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 706e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 707063e765345fd49df0f53b807e57ada7c2ded7e16Jim Laskey unsigned SrcFile = DebugInfo->RecordSource(DirName, FName); 708abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 709bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 710abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 711abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 712abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 713abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 714abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 715abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 716abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 717abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 718bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 719abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 720d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 721d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 722abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey unsigned ID = DebugInfo->RecordLabel(Line, Col, SrcFile); 723abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 724bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LABEL, MVT::Other,&Ops[0],Ops.size()); 725abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 726e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 727e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 728e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 72936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 730e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 73136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 7329ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 7339ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 734f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 73536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 7369ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 7379ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 7389ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 7399ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 7409ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 7419ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 7429ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 7439ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 74436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 74536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 746f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 74736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 74836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 74936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 75036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 751f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 752f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 753abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 754f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 755f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 756abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 757abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 758abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 759abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 760abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 761c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 762abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 763abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 764abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 765abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 766abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case ISD::DEBUG_LABEL: 767abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid DEBUG_LABEL node!"); 768abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LABEL, MVT::Other)) { 769abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 770abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 771abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 772abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 773c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 774f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 775f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 776551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 77736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 7783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: 7793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 7803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 7813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // FIXME: Maybe we should handle things like targets that don't support full 7833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // 32-bit immediates? 7843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 7853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 7863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 7873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 7883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 7893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 7903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 7913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 7933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 7943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 7953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 7963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 7973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 7983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 7993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 8003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8013181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 8023181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 8033181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = DAG.getTargetConstantFP(CFP->getValue(), CFP->getValueType(0)); 8043181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 8053181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 8063181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 8073181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 8083181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 8093181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 8103181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 8113181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 8123181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 8133181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 8143181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 8153181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 8163181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 817279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 8183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 8193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 8203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 821040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 822040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 823c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 824c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 825c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 826c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 827c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 828c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 829c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 830c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 831040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 832f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 833040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 834c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 835c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 836f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 837a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 838a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 839fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 840fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 841f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 842fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 843b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 844b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 845b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val->getNumValues() == Result.Val->getNumValues() && 846b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 847e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 848f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 849e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 850b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 851b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 852e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 853e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 854e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 855e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 856e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 857fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 858b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 859b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 8602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 8612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 8622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 8632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 8642332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 8652332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 8662332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 8672332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 868ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 869ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 870b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 8712332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 8722332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 8732332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 8742332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 8752332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 8762332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 8772332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 8782332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 8792332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 8802332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 8812332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 8822332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 8832332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 8842332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 8852332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 8862332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 8872332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 8882332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 8892332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 8902332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 8912332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 8928d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 8938d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 8948d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 8958d5a894501b7546dee94df03118b90126c420820Chris Lattner SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 8968d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1.getValueType(), Tmp2); 8978d5a894501b7546dee94df03118b90126c420820Chris Lattner 8988d5a894501b7546dee94df03118b90126c420820Chris Lattner unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 8998d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 9008d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskEltVT = MVT::getVectorBaseType(ShufMaskVT); 9018d5a894501b7546dee94df03118b90126c420820Chris Lattner 9028d5a894501b7546dee94df03118b90126c420820Chris Lattner // We generate a shuffle of InVec and ScVec, so the shuffle mask should 9038d5a894501b7546dee94df03118b90126c420820Chris Lattner // be 0,1,2,3,4,5... with the appropriate element replaced with elt 0 of 9048d5a894501b7546dee94df03118b90126c420820Chris Lattner // the RHS. 905bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> ShufOps; 9068d5a894501b7546dee94df03118b90126c420820Chris Lattner for (unsigned i = 0; i != NumElts; ++i) { 9078d5a894501b7546dee94df03118b90126c420820Chris Lattner if (i != InsertPos->getValue()) 9088d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 9098d5a894501b7546dee94df03118b90126c420820Chris Lattner else 9108d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 9118d5a894501b7546dee94df03118b90126c420820Chris Lattner } 912bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 913bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ShufOps[0], ShufOps.size()); 9148d5a894501b7546dee94df03118b90126c420820Chris Lattner 9158d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 9168d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1, ScVec, ShufMask); 9178d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = LegalizeOp(Result); 9188d5a894501b7546dee94df03118b90126c420820Chris Lattner break; 9198d5a894501b7546dee94df03118b90126c420820Chris Lattner } 9208d5a894501b7546dee94df03118b90126c420820Chris Lattner 9212332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 9222332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 9232332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 9242332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 9252332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 9262332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 927f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 928f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType EltVT = Tmp2.getValueType(); 929f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 930f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 931f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr = CreateStackTemporary(VT); 932eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 9338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, NULL, 0); 934eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 935eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 936f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 937f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 938eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 939f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 940f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 941f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 942eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 9438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Ch = DAG.getStore(Ch, Tmp2, StackPtr2, NULL, 0); 944eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 945466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Ch, StackPtr, NULL, 0); 9462332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 9472332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9482332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9492332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 950ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 9514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 9524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 9534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 9544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 9554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 956ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 957ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 958ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 959ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 960ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 961ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 962ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 9634d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 9644d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 9654d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 9664d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 9674d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 9684d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 9694d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 9704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 9714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 972ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 973ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 974ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 97587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 97687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 97787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 97887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 97987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 98087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 9814352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 9824352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 9834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 9844352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 9854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 9864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 9874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 98818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 98918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 99018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 99118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 99218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 99318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 99418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 99518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 99618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType EltVT = MVT::getVectorBaseType(VT); 99718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 99818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 99918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1000bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 100118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 100218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 100318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 100418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 100518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 100618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 100718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 100818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 100918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 101018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 101118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 101218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 101318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 101418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 101518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1016bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 10174352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 101818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 10194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 10204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 10214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 10224352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 10234352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 10244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 10254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 10264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 10274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 10284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 10294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 10304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 10314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 10324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 10334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 10344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 103587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 103687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1037384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1038384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 1039384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1040384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1041384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1042e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner 1043e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, 1044e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp1.getValueType())) { 1045e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner default: assert(0 && "This action is not supported yet!"); 1046e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Legal: 1047e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 1048e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Custom: 1049e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1050e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner if (Tmp3.Val) { 1051e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Result = Tmp3; 1052e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 1053e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 1054e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner // FALLTHROUGH 10554aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case TargetLowering::Expand: 10564aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = ExpandEXTRACT_VECTOR_ELT(Result); 1057e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 1058e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 1059384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1060384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 10611597221eace1c53ce5f84a7018397497d11a8393Chris Lattner case ISD::VEXTRACT_VECTOR_ELT: 10621597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Result = LegalizeOp(LowerVEXTRACT_VECTOR_ELT(Op)); 1063384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 106487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 10656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 10666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 10676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 10686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 10696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 10706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 1071c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner {std::set<SDNode*> NodesLeadingTo; 10726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1073c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1074c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1075c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 10766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 10776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 10786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 10796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 10806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 10816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 10826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1083c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1084b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1085b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1086b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 10876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 10886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 10896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1090f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 10916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1092f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 10936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 10946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 10956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 10964b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 10974b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 10984b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 10994b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 11006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 11016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 11026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 11036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 11046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 11056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 11066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 11076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 11086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 11096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 11116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 11126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 11136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 11146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 111516cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 11166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 11176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 11186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 11196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 11206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner std::map<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 11216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 11226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 11236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 11246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 11256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 11276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 11283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 112970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 113070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 113170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 113270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1133f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 113470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1135f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 113670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 113770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 113870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 113970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 114070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1141f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 114270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 114370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1144f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 114570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 11466a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 11474b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 11486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 11496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 11504b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 11514b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 11524b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 11534b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 11544b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 11554b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1156a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 1157fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1158fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1159fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1160c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1161fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1162c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 11635f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 1164a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 1165a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng Node->getValueType(0))) { 1166a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1167903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1168903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1169903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1170903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1171903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 1172903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 1173903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, Node->getValueType(0)); 1174903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp1 = DAG.getNode(ISD::SUB, Node->getValueType(0), SP, Size); // Value 1175903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp2 = DAG.getCopyToReg(SP.getValue(1), SPReg, Tmp1); // Output chain 1176c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1177c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1178903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1179903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1180903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 11815f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 11825f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1183c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1184c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1185a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1186903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1187a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1188903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1189a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1190903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1191903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1192c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1193c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1194903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1195a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 119625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1197f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 119825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 119925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 120025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 120125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 120225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 120325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 120425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 120525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 120625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 120725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 120825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 120925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 121025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 121125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 121225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 121325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 121425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 121525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 121625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 121725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 121825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 121925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 122025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 122125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 122225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1223ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 122425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1225f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1226ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1227ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1228c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1229ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1230ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 123125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1232c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1233c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 12346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 12356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 12366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 12376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 12386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1239c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1240c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 124137efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 124237efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 124337efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 124437efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 124537efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 124637efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 124737efe6764568a3829fee26aba532283131d1a104Nate Begeman 124837efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 124937efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 125037efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 125137efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 125237efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 125337efe6764568a3829fee26aba532283131d1a104Nate Begeman } 125437efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 125537efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 12563d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 12573d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 12583d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 12593d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 12603d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 12613d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 12623d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 12633d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 12643d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 12653d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 12663d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 12673d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 12683d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 12693d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 12703d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 12713d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 12723d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 12733d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 12743d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 12753d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 12763d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 12773d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 12783d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1279acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1280acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 12813d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 12823d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1283acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1284acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1285acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1286acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 1287acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, NULL, 0); break; 1288acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, NULL, 0); break; 1289acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1290acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1291acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 12923d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 12933d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 12943d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // RelocBase is the JumpTable on PPC and X86, GOT on Alpha 12953d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Reloc; 12963d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (TLI.usesGlobalOffsetTable()) 12973d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, PTy); 12983d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng else 12993d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = Table; 1300d063189c0958536aae7ecebec5676541b2cdef9bEvan Cheng Addr = (PTy != MVT::i32) ? DAG.getNode(ISD::SIGN_EXTEND, PTy, LD) : LD; 13013d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, Reloc); 13023d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 13033d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } else { 13043d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), LD); 13053d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 13063d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 13073d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 13083d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1309c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1310c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 13126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 13136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 13146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 13156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 131647e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 131747e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 131847e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 131947e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 132047e9223e06390897c3834f8c527001df392570ffChris Lattner break; 132147e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 132247e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1323f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1324f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1325f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 1326f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner if (!TLI.MaskedValueIsZero(Tmp2, 1327f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner MVT::getIntVTBitMask(Tmp2.getValueType())^1)) 1328f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 132947e9223e06390897c3834f8c527001df392570ffChris Lattner break; 133047e9223e06390897c3834f8c527001df392570ffChris Lattner } 1331456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1332456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1333c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 13347cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 13357cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 13367cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1337456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1338456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1339456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1340456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1341456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 13427cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 13437cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 13447cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 13457cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 13467cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 13477cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 13487cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 13497cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 13507cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 13517cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 13527cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 13537cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 13547cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 13557cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 13567cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 13577cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 13587cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 13597cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 13616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 13626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 13636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 13646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1365750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1366750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1367750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1368181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1369750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1370750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1371750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1372750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1373750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1374750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1375750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1376750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1377750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1378750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1379750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1380750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1381456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1382181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1383181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1384456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1385456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1386456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1387456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1388181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 13897cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1390c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1391f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1392466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1393466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1394466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 13952d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1396466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1397466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1398466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1399466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1400466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1401466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1402456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1403466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1404466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1405466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: break; 1406466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1407466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1408466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1409466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1410466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1411466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1412466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1413466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1414466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1415466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1416466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1417466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1418466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1419466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1420466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 1421466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 142241f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1423466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1424f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1425466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1426466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1427466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1428466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1429466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1430466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1431466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 14322e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType SrcVT = LD->getLoadedVT(); 1433466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getLoadXAction(ExtType, SrcVT)) { 1434466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1435466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: 1436466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(SrcVT == MVT::i1 && 1437466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng "Can only promote extending LOAD from i1 -> i8!"); 1438466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1439466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValue(), LD->getSrcValueOffset(), 1440466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::i8); 1441c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1442c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1443c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1444466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1445466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng isCustom = true; 1446466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FALLTHROUGH 1447466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: 1448466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1449466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = Result.getValue(0); 1450466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = Result.getValue(1); 1451456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1452466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (isCustom) { 1453466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 1454466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp3.Val) { 1455466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Tmp3); 1456466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1457466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1458456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1459466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1460466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Expand: 1461466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 1462466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 1463466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 1464466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 1465466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1466466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1467466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Load.getValue(1)); 1468466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1469466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1470466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(ExtType != ISD::EXTLOAD && "EXTLOAD should always be supported!"); 1471466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Turn the unsupported load into an EXTLOAD followed by an explicit 1472466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // zero/sign extend inreg. 1473466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 1474466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1, Tmp2, LD->getSrcValue(), 1475466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset(), SrcVT); 1476466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand ValRes; 1477466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) 1478466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1479466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, DAG.getValueType(SrcVT)); 1480466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 1481466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1482466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1483466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1484c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 14859d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 1486466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 1487466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 1488466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1489466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1490466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 149101ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 149201ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 14935dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 14945dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 14955dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1496c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 14975dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 14985dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 14995dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 15005dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 15015dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 15025dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 15035dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 15045dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 15055dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 15065dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 15075dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 15085dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 15095dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 15105dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 15115dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 15125dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 15135dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 15145dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 15155dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 15165dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 15175dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 15185dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 15193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 15205dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 15213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 15223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 15233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1524edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1525c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1526d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 15277310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1528d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1529f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1530c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 15317310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1532f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1533c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1534f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1535c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1536c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1537c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1538c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 15397310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 15407310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 15417310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 15427310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1543c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 15447310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1545c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 15467310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 15473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 15483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 15493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 15503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 15536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 15546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 15556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 1556f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 15573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 15588e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 155998f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 15608e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 1561f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 15623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 15638e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 15643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1565f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 1566f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner if (Tmp2.getValueType() != MVT::Vector) { 1567f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1568f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 156913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 157013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 157113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 157213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 1573f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 1574f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1575f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 1576f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner unsigned NumElems = 1577f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 1578f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 1579f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 1580f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 1581f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // type. If so, convert to the packed type. 1582f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 1583f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 1584f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the packed type. 1585f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Tmp2 = PackVectorOp(Tmp2, TVT); 15868e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1587f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 1588f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 1589f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Tmp2 = PackVectorOp(Tmp2, EVT); 15908e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1591b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1592b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 1593b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 1594b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1595f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 1596f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 1597f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1598f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1599b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 1600b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 1601f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1602f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 16038e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi, Tmp3); 1604f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1605f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1606f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1607edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 16083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 16098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 16108e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1611c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 16128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 16133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 16143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1616c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 16173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 1619f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 16203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 16218e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 16223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 16233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 16244e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 16258e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 16263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 16283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 1629b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner assert(Node->getOperand(i).getValueType() != MVT::Vector && 1630b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 16313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 16323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 16338e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 163413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 163513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 163613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 163713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 1638edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 16393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 16403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 16418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 16423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1643c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1644c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 1645f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 1646c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 1647f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 1648f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 16493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 16513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 165217c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 16536862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 16546862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 16556862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 16566862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 16576862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 16586862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 16596862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 16606862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 16616862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 166217c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 16633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1664f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 16658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 16668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 16678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 16688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 16698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 1670d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 1671d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 1672d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 1673d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 1674d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 1675d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 1676d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 1677d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner if (CFP->getValueType(0) == MVT::f32) { 1678d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Tmp3 = DAG.getConstant(FloatToBits(CFP->getValue()), MVT::i32); 1679d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } else { 1680d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner assert(CFP->getValueType(0) == MVT::f64 && "Unknown FP type!"); 1681d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Tmp3 = DAG.getConstant(DoubleToBits(CFP->getValue()), MVT::i64); 1682d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1683d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 1684d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner ST->getSrcValueOffset()); 1685d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner break; 1686d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1687d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 16888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (getTypeAction(ST->getStoredVT())) { 16898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 16908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 16912efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 16928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 16938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 16948b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 16958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 16968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 16978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Legal: break; 16988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 16998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 17008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 17018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 17028b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 17038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 17048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 17058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 17068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 17078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValue(), ST->getSrcValueOffset()); 17088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 17098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 17102efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 1711f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 17128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 17138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 17148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 17158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 17168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset(), ST->getStoredVT()); 17178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 171803c8546ec57523970874917854a2fb77b1ff598eChris Lattner 17198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 17208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 17218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 1722c7029805ef35ce9805931067b841e6af11db382eChris Lattner 17238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 17248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 17258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 17268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (ST->getValue().getValueType() == MVT::Vector) { 17278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 17288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned NumElems = 17298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 17308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 17318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 17328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Figure out if there is a Packed type corresponding to this Vector 17338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // type. If so, convert to the packed type. 17348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 17358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 17368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the packed type. 17378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PackVectorOp(Node->getOperand(1), TVT); 17388b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 17398b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset()); 17408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 17418b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 17428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 17438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 17448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PackVectorOp(Node->getOperand(1), EVT); 17458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 17468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset()); 17478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 17488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 17498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 17508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 17518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 17528b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SplitVectorOp(Node->getOperand(1), Lo, Hi); 17538b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng IncrementSize = NumElems/2 * MVT::getSizeInBits(EVT)/8; 17548b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 1755c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 17568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ExpandOp(Node->getOperand(1), Lo, Hi); 17577b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 17588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 17598b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!TLI.isLittleEndian()) 17608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 1761c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 1762c7029805ef35ce9805931067b841e6af11db382eChris Lattner 17638b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 17648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset()); 17657b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 17667b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 17677b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 17687b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 17697b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 17707b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 17717b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 17728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 17738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng getIntPtrConstant(IncrementSize)); 17748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 17758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 17768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // FIXME: This sets the srcvalue of both halves to be the same, which is 17778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // wrong. 17788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 17798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset()); 17808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 17818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 17828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 17838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 17848b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncating store 17858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(ST->getValue().getValueType()) && 17868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Cannot handle illegal TRUNCSTORE yet!"); 17878b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 17888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 17898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The only promote case we handle is TRUNCSTORE:i1 X into 17908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // -> TRUNCSTORE:i8 (and X, 1) 17918b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (ST->getStoredVT() == MVT::i1 && 17928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getStoreXAction(MVT::i1) == TargetLowering::Promote) { 17938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Promote the bool to a mask then store. 17948b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::AND, Tmp3.getValueType(), Tmp3, 17958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng DAG.getConstant(1, Tmp3.getValueType())); 17968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 17978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset(), MVT::i8); 17988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 17998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 != ST->getBasePtr()) { 18008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 18018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 1802d9731af75b38f30c02f19d6e81333b9c2599ad5fChris Lattner } 1803c7029805ef35ce9805931067b841e6af11db382eChris Lattner 18048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType StVT = cast<StoreSDNode>(Result.Val)->getStoredVT(); 18058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getStoreXAction(StVT)) { 18068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 18078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Legal: break; 18088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 18098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 18108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 18118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 18128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 18133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 18143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1815f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 181695762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 181795762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1818c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 181995762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 1820140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 1821140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1822c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1823c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1824c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1825456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1826140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 1827140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1828456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1829456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1830c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1831c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 1832c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1833c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1834140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1835456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1836140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 18374f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 18384f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 18394f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 1840c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 18414f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 1842c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 18434f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 1844c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 1845c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 18464f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1847456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1848140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1849456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1850456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 1851456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 1852c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1853c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1854c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1855456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1856140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 1857140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1858140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 1859c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1860140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 1861140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 1862140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1863456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1864456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1865456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1866456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1867140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1868140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 18694f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 18704f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 18714f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 18724f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 18734f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 18744f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 18754f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1876140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1877140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1878140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1879140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 188051b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 188151b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 1882c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1883f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 1884f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 1885f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 18866a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 18876a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 18886a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 18896a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 1890f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 1891f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 18926a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 18936a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 1894f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 1895f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 189649c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 189749c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 189849c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 18996a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 19006a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1901c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 1902f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 19032ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 190447e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 190547e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 190647e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 190747e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 190847e9223e06390897c3834f8c527001df392570ffChris Lattner break; 190947e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 191047e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 1911b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 1912b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner if (!TLI.MaskedValueIsZero(Tmp1, 1913b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner MVT::getIntVTBitMask(Tmp1.getValueType())^1)) 1914b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 191547e9223e06390897c3834f8c527001df392570ffChris Lattner break; 191647e9223e06390897c3834f8c527001df392570ffChris Lattner } 19173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 19182ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 191955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 1920c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1921456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1922b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 192355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 1924456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1925456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 1926456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1927456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1928456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1929456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 19309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 19319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 19329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 19339373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 19349373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 19359373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 19369373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 19379373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 19389373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 19399373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 194055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 194155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 194255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 194355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 194455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 194541f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 194641f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 194741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 194841f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 1949456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 1950456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 195155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 1952456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 1953456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 195455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 195555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 195655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 195755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 195855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 195955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 196055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 196155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 196255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 196355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 19643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1965750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 1966750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 1967750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 19689373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 19699373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 1970750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 19719373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 1972750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 1973750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1974750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1975750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1976750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1977750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 1978750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 1979750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 1980750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1981750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 1982750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1983750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 1984750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 1985750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 1986750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 1987750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 1988750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 1989750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 19909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 19919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 19929373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 1993750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 19943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 1995750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 1996750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 1997750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 1998750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 1999750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2000750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2001750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2002750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2003750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2004750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 20053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 20063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2007b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 200873e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2009456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2010456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2011456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2012456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2013456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 20142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2015456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 20162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 20172b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2018456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2019b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2020ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2021ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2022ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2023ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2024ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 2025ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType OldVT = NewInTy; 2026ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2027ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2028ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2029ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2030ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2031ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2032ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2033ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2034ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2035ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2036ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 20371ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2038ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2039ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2040ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2041ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2042ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2043ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2044ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2045ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2046c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2047c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 20482b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2049433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 20505e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2051ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2052b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2053b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2054b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2055b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2056b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2057b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 20582b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2059b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2060b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 20613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2062e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 2063e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 2064e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 2065deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 2066e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 2067e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 2068e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 2069e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 2070e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 2071e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2072deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 2073e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2074e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2075deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 2076e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2077e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2078e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 2079edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 2080e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2081272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2082272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2083272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 20846814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 20856814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 20866814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 2087fa9aa2b424d0a7d9f7201f8fdcf5ccfa05db3a80Chris Lattner ExpandOp(Node->getOperand(3), Tmp4, HiPart); 20886814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 20896814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2090e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2091e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2092e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2093e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2094e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2095272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2096272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2097272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2098272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2099272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2100272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2101272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2102272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2103272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2104272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2105e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2106e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2107e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 210855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 210955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 211055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2111456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2112456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2113456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 211455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2115c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, Tmp5); 2116456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2117456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2118456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2119456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 212055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 212155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2122e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2123e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2124e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2125a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 2126e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::vector<std::pair<SDOperand, const Type*> > Args; 2127e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 21283bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2129e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2130e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp2, IntPtrTy)); 2131dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2132dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2133dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2134dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2135dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2136dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2137e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp3, Type::IntTy)); 2138e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp4, IntPtrTy)); 2139e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2140e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2141e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2142e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2143e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp2, IntPtrTy)); 2144e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp3, IntPtrTy)); 2145e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp4, IntPtrTy)); 2146e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2147e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2148e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2149e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 215045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2151e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 2152adf6a965a321372c640845407195594835921eb4Chris Lattner TLI.LowerCallTo(Tmp1, Type::VoidTy, false, CallingConv::C, false, 2153e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2154456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 215555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 215655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2157e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2158e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2159e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 216052d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 21615b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 21625b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 21635b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2164f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 216584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 216684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 216784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 216884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 216984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2170c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2171f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 21722c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 217305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 217405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 217505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2176456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2177456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2178456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2179456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2180456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 218105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2182456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 218305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 218405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 218512f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 218605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2187269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 218805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 218905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 219005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 219105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 219205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 21932c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 21942c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 21952c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 21962c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 21972c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 219884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 21992c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 22002c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 22013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 22023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 22033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2204c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2205c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 22063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 22073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 22083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 22093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 22103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 221103c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 221203c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 221303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 221401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 221501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 221601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 221701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 22183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2219f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2220f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2221f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2222f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2223f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2224f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2225f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2226f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2227f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2228c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2229c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2230456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2231e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2232bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2233456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2234456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2235456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2236456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 223757030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2238bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 223952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (Node->getValueType(0) == MVT::i32) { 224052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng switch (Node->getOpcode()) { 224152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng default: assert(0 && "Do not know how to expand this integer BinOp!"); 224252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::UDIV: 224352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::SDIV: 224452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng const char *FnName = Node->getOpcode() == ISD::UDIV 224552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng ? "__udivsi3" : "__divsi3"; 224652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 224752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = ExpandLibCall(FnName, Node, Dummy); 224852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng }; 224952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 225052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 225152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 2252bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 2253bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 2254bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 2255bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2256bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner MVT::ValueType EltVT = MVT::getVectorBaseType(Node->getValueType(0)); 2257bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 2258bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner for (unsigned i = 0, e = MVT::getVectorNumElements(Node->getValueType(0)); 2259bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner i != e; ++i) { 2260bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand Idx = DAG.getConstant(i, PtrVT); 2261bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand LHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, Idx); 2262bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand RHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, Idx); 2263bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner Ops.push_back(DAG.getNode(Node->getOpcode(), EltVT, LHS, RHS)); 2264bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2265bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, Node->getValueType(0), 2266bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 2267bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 2268bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2269cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 2270cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 2271cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 2272cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 2273cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 2274cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 2275cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 2276cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2277cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 2278cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 2279cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 2280cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 2281cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 2282cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 2283cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 2284cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 2285cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2286cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2287cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2288e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 22893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2290a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2291a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 2292a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2293a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 2294a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 2295a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 2296a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2297a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2298a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 2299a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2300a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2301a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2302a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2303a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2304a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2305a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2306a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 2307a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 2308a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2309a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 23108f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 2311a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 2312a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Expand: 23138f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // If this target supports fabs/fneg natively, do this efficiently. 23148f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner if (TLI.isOperationLegal(ISD::FABS, Tmp1.getValueType()) && 23158f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner TLI.isOperationLegal(ISD::FNEG, Tmp1.getValueType())) { 23168f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 23178f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 23188f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 23198f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 23208f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 23218f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 23228f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 23238f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 23248f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 23258f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 23268f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 23278f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 23288f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 23298f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 23308f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 23318f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 23328f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 23338f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 23348f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 23358f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 23368f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // copysign -> copysignf/copysign libcall. 2337a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner const char *FnName; 2338a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Node->getValueType(0) == MVT::f32) { 2339a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner FnName = "copysignf"; 2340a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp2.getValueType() != MVT::f32) // Force operands to match type. 2341a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, 2342a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner DAG.getNode(ISD::FP_ROUND, MVT::f32, Tmp2)); 2343a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } else { 2344a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner FnName = "copysign"; 2345a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp2.getValueType() != MVT::f64) // Force operands to match type. 2346a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, 2347a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner DAG.getNode(ISD::FP_EXTEND, MVT::f64, Tmp2)); 2348a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2349a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner SDOperand Dummy; 2350a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 2351a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2352a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2353a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2354a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2355551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 2356551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 2357551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2358551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2359551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2360551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2361551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2362551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2363551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2364551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2365edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2366551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 2367551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 2368551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2369551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2370551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 2371551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2372551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2373551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2374551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2375551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2376551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2377551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 2378419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 2379419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 2380419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 2381419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 2382419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 2383419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 2384456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2385456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2386456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 2387419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 2388419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 2389419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 2390419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2391419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 2392419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 2393419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 2394419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 2395419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 2396419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 2397456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 2398419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2399419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2400419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2401419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2402419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 2403c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 2404c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 240501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2406c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2407c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2408456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2409c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2410456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 2411456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2412456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2413456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 241457030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 2415c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2416456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2417456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2418456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2419456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 242057030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 24214c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner case TargetLowering::Expand: 24226b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 24234c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner if (MVT::isInteger(Node->getValueType(0))) { 242452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (TLI.getOperationAction(DivOpc, Node->getValueType(0)) == 242552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 242652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 242752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng MVT::ValueType VT = Node->getValueType(0); 24286b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 242952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 243052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 243152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 243252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng assert(Node->getValueType(0) == MVT::i32 && 243352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 243452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng const char *FnName = Node->getOpcode() == ISD::UREM 243552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng ? "__umodsi3" : "__modsi3"; 243652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 243752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = ExpandLibCall(FnName, Node, Dummy); 243852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 24394c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner } else { 24404c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner // Floating point mod -> fmod libcall. 24414c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner const char *FnName = Node->getValueType(0) == MVT::f32 ? "fmodf":"fmod"; 24424c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner SDOperand Dummy; 24439c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 2444c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2445c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2446c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2447c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2448acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 2449acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2450acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2451acc398c195a697795bff3245943d104eb19192b9Nate Begeman 24525c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2453acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 2454acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2455456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2456456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2457456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2458acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2459c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2460c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 2461456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 2462456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2463456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2464456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 2465456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 2466456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 2467456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 2468456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2469456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2470acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2471acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 2472466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 2473acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 2474466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 2475acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 2476acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 2477acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 2478acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 2479acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 24808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 24818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 2482acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 2483466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 2484456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 2485acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 2486acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2487acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2488acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2489acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 2490acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 2491acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 2492456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 2493456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 2494acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2495acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2496acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 2497acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2498acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 2499acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 2500acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2501acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 2502acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2503456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2504456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2505456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2506acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2507c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 2508c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 2509456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2510456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2511456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2512456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2513acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2514acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2515acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 2516acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 2517466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SVD = cast<SrcValueSDNode>(Node->getOperand(3)); 25188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SrcValueSDNode *SVS = cast<SrcValueSDNode>(Node->getOperand(4)); 2519466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, SVD->getValue(), 2520466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SVD->getOffset()); 25218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, SVS->getValue(), 25228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SVS->getOffset()); 2523acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2524acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2525acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2526acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2527acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 2528acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2529acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2530acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2531acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 2532acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2533456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2534456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2535456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2536acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2537c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2538456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2539456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 2540456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2541456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2542acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2543acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2544acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 2545acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2546acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2547acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2548acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2549acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 2550acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2551acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2552acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2553c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2554c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2555acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 2556acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2557456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2558456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2559456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2560456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2561acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2562acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2563acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2564acc398c195a697795bff3245943d104eb19192b9Nate Begeman 256535ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 256635ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 256735ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 256835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2569456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2570456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 2571456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner "Cannot handle this yet!"); 2572c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 257335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 257435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 2575d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2576d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2577d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2578456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2579456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 2580456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2581c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2582456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2583456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 2584456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 2585456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2586456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner unsigned DiffBits = getSizeInBits(NVT) - getSizeInBits(OVT); 2587456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2588456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2589456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2590456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2591456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 2592456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2593456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2594456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 2595456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 2596456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2597d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 2598d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2599d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 2600691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2601691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2602691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2603691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2604691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2605456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: assert(0 && "Cannot custom handle this yet!"); 2606691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 2607c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2608691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2609691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 2610691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 2611691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2612edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 2613edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 2614691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2615691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 2616691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 2617456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2618691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2619691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 2620691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2621691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2622691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 26237cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 26247cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner DAG.getConstant(getSizeInBits(NVT), NVT), 26257cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 262600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2627691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth DAG.getConstant(getSizeInBits(OVT),NVT), Tmp1); 2628691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2629691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2630456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 263100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 263200b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen DAG.getConstant(getSizeInBits(NVT) - 2633691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth getSizeInBits(OVT), NVT)); 2634691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2635691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2636691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2637691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2638691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 2639456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 2640691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2641691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2642691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 264300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 26442c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 26452c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 26462c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 2647da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 2648da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 2649da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 26502c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 26512c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2652456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2653456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 265459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 265559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 26562c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 2657c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 265859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 265959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 266059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 266159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 26622c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 26632c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 2664456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2665456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 2666456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 26672c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 26682c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 2669456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 2670f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2671f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 26724af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 26734af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 26744af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 26757cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 26764af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 26774af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 2678f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2679f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 2680f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 2681f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 2682f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 2683f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2684f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner const char *FnName = 0; 2685f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 2686f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: FnName = VT == MVT::f32 ? "sqrtf" : "sqrt"; break; 2687f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: FnName = VT == MVT::f32 ? "sinf" : "sin"; break; 2688f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: FnName = VT == MVT::f32 ? "cosf" : "cos"; break; 2689f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 2690f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 26912ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 26929c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 2693f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2694f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 26952c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 26962c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 26972c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 26982c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 26996ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 27006ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner // We always lower FPOWI into a libcall. No target support it yet. 27016ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner const char *FnName = Node->getValueType(0) == MVT::f32 27026ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner ? "__powisf2" : "__powidf2"; 27036ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 27046ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 27056ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 27066ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 270735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 270867993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 270935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 271067993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 271135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 271235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 271335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 271435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 271535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 271635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 271735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 271835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2719c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 272035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 272135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 272235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 272335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 2724d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner case ISD::VBIT_CONVERT: { 2725d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner assert(Op.getOperand(0).getValueType() == MVT::Vector && 2726d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner "Can only have VBIT_CONVERT where input or output is MVT::Vector!"); 2727d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 2728d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // The input has to be a vector type, we have to either scalarize it, pack 2729d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // it, or convert it based on whether the input vector type is legal. 2730d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 2731d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner unsigned NumElems = 2732d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 2733d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 2734d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 2735d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 2736d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // type. If so, convert to the packed type. 2737d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 2738d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 2739d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Turn this into a bit convert of the packed input. 2740d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 2741d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner PackVectorOp(Node->getOperand(0), TVT)); 2742d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner break; 2743d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } else if (NumElems == 1) { 2744d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Turn this into a bit convert of the scalar input. 2745d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 2746d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner PackVectorOp(Node->getOperand(0), EVT)); 2747d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner break; 2748d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } else { 2749d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // FIXME: UNIMP! Store then reload 2750d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner assert(0 && "Cast from unsupported vector type not implemented yet!"); 2751d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 2752d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 2753d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 27542c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 2755fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 2756fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 2757fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 2758fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2759fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2760d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 2761fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 2762fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 2763456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2764456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2765456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2766456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2767456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2768c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2769456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2770456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2771456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2772456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2773456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2774fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 27756269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 27766269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 27776269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 2778456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2779fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 2780fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 2781fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 2782fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 2783fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 27845b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 2785fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2786fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2787fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 2788fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 2789fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2790fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2791c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2792fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 2793c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 2794c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 2795fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 2796c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 2797c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 2798fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2799c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2800c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 2801fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2802fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2803fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2804fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2805fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 2806fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2807fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2808fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2809c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2810fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2811fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2812fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 2813fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 2814fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 2815fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 2816fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 2817fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2818fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2819fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 2820fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 2821fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2822fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2823fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2824d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 2825fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 2826fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 2827fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2828fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2829f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2830f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 28311618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 28321618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 2833456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2834456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2835456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2836456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2837c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2838456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2839456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2840456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2841456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2842456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2843456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2844456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 2845456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 2846456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 28471618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 2848d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 2849d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 2850d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 2851d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 2852d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman unsigned ShiftAmt = MVT::getSizeInBits(Node->getValueType(0))-1; 2853d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getConstantFP((double)(1ULL << ShiftAmt), VT); 2854d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 2855d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 2856d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 2857d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 285801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 2859d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 2860d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 2861d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 2862456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 2863456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2864d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 2865d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 2866d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 2867d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 28681618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 2869fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 28706af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 28716af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng // Convert f32 / f64 to i32 / i64. 28726af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 28736af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng const char *FnName = 0; 28746af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 28756af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_SINT: 28766af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 28776af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng FnName = (VT == MVT::i32) ? "__fixsfsi" : "__fixsfdi"; 28786af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 28796af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng FnName = (VT == MVT::i32) ? "__fixdfsi" : "__fixdfdi"; 28806af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 28816af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_UINT: 28826af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 28836af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng FnName = (VT == MVT::i32) ? "__fixunssfsi" : "__fixunssfdi"; 28846af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 28856af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng FnName = (VT == MVT::i32) ? "__fixunsdfsi" : "__fixunsdfdi"; 28866af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 28876af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 28886af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 28896af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 28906af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng Result = ExpandLibCall(FnName, Node, Dummy); 28916af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 28926af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 2893fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2894c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2895c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 2896c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 2897fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2898fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2899fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2900d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 290113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 29023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 29033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 290403c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_EXTEND: 290503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_ROUND: 29063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2907456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 29083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 29093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2910c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 29113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 291203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 291303c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 291413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 2915c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2916c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 291713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 29181713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 29191713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 292013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 292123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 292223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 292303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 292403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 29251713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 292613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 29271713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 292815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 292915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 29301713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 293103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 29321713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 29331713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 29341713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 29351713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 29361713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 293703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 2938f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 2939f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 2940f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 294103c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 29423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 29433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 29440f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 294523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 29460f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 294715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 294845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 294945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 295045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 295155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 295255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 295355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2954c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 295555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 295655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 295745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 295823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 295945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 296045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 296145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 296245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 296327ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 296445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 296545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 296645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 296745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 296845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 29692d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 297045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 297145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 297245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 297345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 297445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 297545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 2976a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson unsigned TySize = (unsigned)TLI.getTargetData()->getTypeSize(Ty); 2977a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson unsigned Align = TLI.getTargetData()->getTypeAlignment(Ty); 297845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 2979edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 298045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MF.getFrameInfo()->CreateStackObject((unsigned)TySize, Align); 298145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 29828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 29838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StackSlot, NULL, 0, ExtraVT); 29845f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 2985466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, StackSlot, NULL, 0, ExtraVT); 298645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 298745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 298845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 298955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 299045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 29910f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 29923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 299345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 2994456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 29954ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 29964ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 29974ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 2998456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 2999456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3000456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 30013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 300245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 300345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 300445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 30053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 30063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 30073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 30088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 30098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 30108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 30118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 301203c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 301303c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 301471c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 301503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 301603c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 301703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 301803c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 301903c8546ec57523970874917854a2fb77b1ff598eChris Lattner 302003c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 302103c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 302203c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 302303c8546ec57523970874917854a2fb77b1ff598eChris Lattner 30246fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner std::map<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 30256fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 302645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 302703c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 3028d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 3029d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 303003c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 3031e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 3032832171cb9724d2d31c8dfb73172e2be8f6dd13eeBill Wendling cerr << "NODE: "; Node->dump(); cerr << "\n"; 3033e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 303403c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 303503c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 3036fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3037fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 3038fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 303903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 3040ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 3041ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 3042ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 3043ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 304403c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 304503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 304603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 304703c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 304803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 304903c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3050ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 305182fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 3052c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 30537cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 30547cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 305582fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 3056fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 305703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 305803c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 305903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 306003c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 306103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 306203c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 306303c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 306403c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 306503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3066e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 3067e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 3068e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 3069e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 3070e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 307103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 307279e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 307379e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 3074e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 307503c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 307603c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 30778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 30788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 307913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 30808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 30818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 30828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 30838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 3084456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 30858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 30868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 30878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 30888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 30898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 30908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 3091595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 309215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 309313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 309423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 309523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 30968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 30978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 30988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 309935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 310035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 310135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 310235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 310335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 31048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 31058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 31068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 31078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 31088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 31098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 31108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 31118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 3112456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 311315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 31148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 31158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 31168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 31178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 31188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 31198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 31208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 31218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 312277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 3123456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 31248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 31258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 31268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 31278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 31288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 31298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 313015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 313115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 31328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 313323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 313423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 313577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 313677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 31378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 31388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 313977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 314077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 314177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 314277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 314315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 314415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 314577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 31468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 31478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 31488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 31495e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 31505e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 31515e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 31525e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 31535e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 31548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 31558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 31568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 31578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 31580b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 3159456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 31608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 31618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 31628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 31638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 31648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 31658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 31668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 3167d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 3168d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 3169d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 3170d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 3171d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 3172d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 3173c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 3174b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 3175b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 3176d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 3177d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3178d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3179d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 31808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 31818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 31822c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 31832c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 31842c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 31852c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 31862c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 31872c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 31882c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 31892c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 31902c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 31912c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 3192da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3193da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3194da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 3195da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3196da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 3197da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3198456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 319915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 320015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3201da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 3202da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 320303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 320403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 320503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 32060f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 32078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 32080f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 32090f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 321001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 32110f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 32120f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 32130f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 32140f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 32150f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 321601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 321701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 321801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 321901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 322001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 322101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 322201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 322301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 322401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 322501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 322601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 322701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 32288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 32298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 323001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 323115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 323215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 32330f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 32340f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 32358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 32368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 32378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 32388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 32398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 32408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 324115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 324215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 324315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 324415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 32458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 32468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 32478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 32488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 32498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 325015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 325115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 32528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 325301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 325401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3255a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 325601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 3257ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 3258ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3259ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3260ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3261ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3262ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = PromoteOp(Node->getOperand(0)); 3263ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3264ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3265ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3266ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 3267ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 3268ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3269ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3270ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3271ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3272ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = PromoteOp(Node->getOperand(1)); 3273ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3274ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3275ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3276ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 327701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 327801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 327901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 3280a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 328101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 328201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 328301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 32848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 32858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 32868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 32878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 32888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 32898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 32908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 329123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 329223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 32938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 32948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32958b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 32968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 32978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3298456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 32998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 33008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 33018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 33028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 330315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 330415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3305456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 33068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 33078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 33088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 33098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 331023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3311456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 33128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 33130aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 33140aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 3315456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 3316456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 33170aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 33180aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 33190aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 33200aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 3321466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 33220aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 3323466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 33240aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 33250aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 33260aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 33270aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 33280aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 33298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 33308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 33310aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 3332466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 33330aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 33340aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 3335456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 33360aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 33370aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 3338466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 3339466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 334062f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 334162f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 334262f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 334362f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 334455b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 33452e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng LD->getLoadedVT()); 33464c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 3347456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 33484c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 3349466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 335003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 335103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 335203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 3353456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 335403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 33559373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 33569373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 33579373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 33589373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 3359456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 33609373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 3361d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3362d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 3363d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3364d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3365d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3366d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman DAG.getConstant(getSizeInBits(NVT) - getSizeInBits(VT), 3367d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 3368d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3369fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3370fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3371fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3372456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 3373456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 3374fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 3375fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3376456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 3377fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3378fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 3379fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3380fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3381456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 3382d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 33837cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner DAG.getConstant(getSizeInBits(NVT), NVT), ISD::SETEQ); 338400b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3385456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(getSizeInBits(VT), NVT), Tmp1); 3386fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3387fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3388fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 338900b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 339000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen DAG.getConstant(getSizeInBits(NVT) - 3391fecf095292991bdf9396fec474011446107f9813Andrew Lenharth getSizeInBits(VT), NVT)); 3392fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3393fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 3394fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 33951597221eace1c53ce5f84a7018397497d11a8393Chris Lattner case ISD::VEXTRACT_VECTOR_ELT: 33961597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Result = PromoteOp(LowerVEXTRACT_VECTOR_ELT(Op)); 33971597221eace1c53ce5f84a7018397497d11a8393Chris Lattner break; 33984aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 33994aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 34004aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 340103c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 340203c8546ec57523970874917854a2fb77b1ff598eChris Lattner 340303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 3404456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3405456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 3406456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 3407456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3408456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 340903c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 341003c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 341103c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 34123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 34131597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// LowerVEXTRACT_VECTOR_ELT - Lower a VEXTRACT_VECTOR_ELT operation into a 34141597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// EXTRACT_VECTOR_ELT operation, to memory operations, or to scalar code based 34151597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// on the vector type. The return type of this matches the element type of the 34161597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// vector, which may not be legal for the target. 34171597221eace1c53ce5f84a7018397497d11a8393Chris LattnerSDOperand SelectionDAGLegalize::LowerVEXTRACT_VECTOR_ELT(SDOperand Op) { 34181597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 34191597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 34201597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 34211597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 34221597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Idx = LegalizeOp(Op.getOperand(1)); 34231597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 34241597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDNode *InVal = Vec.Val; 34251597221eace1c53ce5f84a7018397497d11a8393Chris Lattner unsigned NumElems = cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 34261597221eace1c53ce5f84a7018397497d11a8393Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 34271597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 34281597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 34291597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // type. If so, convert to the packed type. 34301597221eace1c53ce5f84a7018397497d11a8393Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 34311597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 34321597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // Turn this into a packed extract_vector_elt operation. 34331597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = PackVectorOp(Vec, TVT); 34341597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, Op.getValueType(), Vec, Idx); 34351597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else if (NumElems == 1) { 34361597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 34371597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return PackVectorOp(Vec, EVT); 34381597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else if (ConstantSDNode *CIdx = dyn_cast<ConstantSDNode>(Idx)) { 34391597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 34401597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 34411597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (CIdx->getValue() < NumElems/2) { 34421597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 34431597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 34441597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 34451597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 34461597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 34471597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 34481597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 34491597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 34501597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return LowerVEXTRACT_VECTOR_ELT(Op); 34511597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 34521597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // Variable index case for extract element. 34531597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // FIXME: IMPLEMENT STORE/LOAD lowering. Need alignment of stack slot!! 34541597221eace1c53ce5f84a7018397497d11a8393Chris Lattner assert(0 && "unimp!"); 34551597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return SDOperand(); 34561597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 34571597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 34581597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 34594aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 34604aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner/// memory traffic. 34614aab2f4ab50d2b04dc559c7b197f1de7612c896bChris LattnerSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 34624aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand Vector = Op.getOperand(0); 34634aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand Idx = Op.getOperand(1); 34644aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 34654aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner // If the target doesn't support this, store the value to a temporary 34664aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner // stack slot, then LOAD the scalar element back out. 34674aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand StackPtr = CreateStackTemporary(Vector.getValueType()); 34688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vector, StackPtr, NULL, 0); 34694aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 34704aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner // Add the offset to the index. 34714aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 34724aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 34734aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner DAG.getConstant(EltSize, Idx.getValueType())); 34744aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 34754aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 3476466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 34774aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 34784aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 34791597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 3480750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 3481750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 3482750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 3483750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 3484750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 3485750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 3486750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 3487750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 3488750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 3489750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand Tmp1, Tmp2, Result; 3490750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3491750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 3492750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 3493750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 3494750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 3495750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3496750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 3497750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 3498750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 3499750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3500750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 3501750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 3502750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 3503750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 3504750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3505750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 3506750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 3507750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 3508750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 3509750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3510750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 3511750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3512750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3513750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 3514750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 3515750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 3516750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 3517750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 3518750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 3519750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 3520750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3521750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 3522750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3523750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3524750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3525750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3526750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3527750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 3528750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3529750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 3530750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3531750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3532750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3533750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3534750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 35352b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 35362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 35372b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 35382b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 35392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng const char *FnName1 = NULL, *FnName2 = NULL; 35402d53a320b4dbcd4af54b17458ed81c3963b544fdChris Lattner ISD::CondCode CC1, CC2 = ISD::SETCC_INVALID; 35412b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 35422b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 35432b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 35442b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName1 = (VT == MVT::f32) ? "__eqsf2" : "__eqdf2"; 35452b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC1 = ISD::SETEQ; 35462b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 35472b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 35482b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 35492b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName1 = (VT == MVT::f32) ? "__nesf2" : "__nedf2"; 35502b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC1 = ISD::SETNE; 35512b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 35522b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 35532b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 35542b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName1 = (VT == MVT::f32) ? "__gesf2" : "__gedf2"; 35552b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC1 = ISD::SETGE; 35562b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 35572b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 35582b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 35592b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName1 = (VT == MVT::f32) ? "__ltsf2" : "__ltdf2"; 35602b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC1 = ISD::SETLT; 35612b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 35622b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 35632b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 35642b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName1 = (VT == MVT::f32) ? "__lesf2" : "__ledf2"; 35652b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC1 = ISD::SETLE; 35662b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 35672b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 35682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 35692b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName1 = (VT == MVT::f32) ? "__gtsf2" : "__gtdf2"; 35702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC1 = ISD::SETGT; 35712b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 35722b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 35732b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 35742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName1 = (VT == MVT::f32) ? "__unordsf2" : "__unorddf2"; 35752b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC1 = cast<CondCodeSDNode>(CC)->get() == ISD::SETO 35762b49c500838666dd0186d021389d4dd70ffda240Evan Cheng ? ISD::SETEQ : ISD::SETNE; 35772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 35782b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 35792b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName1 = (VT == MVT::f32) ? "__unordsf2" : "__unorddf2"; 35802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC1 = ISD::SETNE; 35812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 35822b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 35832b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 35842b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName1 = (VT == MVT::f32) ? "__ltsf2" : "__ltdf2"; 35852b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC1 = ISD::SETLT; 35862b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 35872b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 35882b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName2 = (VT == MVT::f32) ? "__gtsf2" : "__gtdf2"; 35892b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC2 = ISD::SETGT; 35902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 35912b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 35922b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName2 = (VT == MVT::f32) ? "__gesf2" : "__gedf2"; 35932b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC2 = ISD::SETGE; 35942b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 35952b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 35962b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName2 = (VT == MVT::f32) ? "__ltsf2" : "__ltdf2"; 35972b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC2 = ISD::SETLT; 35982b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 35992b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 36002b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName2 = (VT == MVT::f32) ? "__lesf2" : "__ledf2"; 36012b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC2 = ISD::SETLE; 36022b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 36032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUEQ: 36042b49c500838666dd0186d021389d4dd70ffda240Evan Cheng FnName2 = (VT == MVT::f32) ? "__eqsf2" : "__eqdf2"; 36052b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC2 = ISD::SETEQ; 36062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 36072b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 36082b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 36092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 36102b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 36112b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 36122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = ExpandLibCall(FnName1, 36132b49c500838666dd0186d021389d4dd70ffda240Evan Cheng DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, Dummy); 36142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 36152b49c500838666dd0186d021389d4dd70ffda240Evan Cheng CC = DAG.getCondCode(CC1); 36162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (FnName2) { 36172b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), Tmp1, Tmp2, CC); 36182b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = ExpandLibCall(FnName2, 36192b49c500838666dd0186d021389d4dd70ffda240Evan Cheng DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, Dummy); 36202b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHS, Tmp2, 36212b49c500838666dd0186d021389d4dd70ffda240Evan Cheng DAG.getCondCode(CC2)); 36222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 36232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 36242b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 36252b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 36262b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 36272b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 36282b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 36292b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 3630750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 3631750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 36322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng ExpandOp(RHS, RHSLo, RHSHi); 3633750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3634750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3635750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3636750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 3637750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 3638750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 3639750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 3640750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 3641750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 3642750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3643750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3644750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3645750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 3646750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 3647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 3648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 3649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3650750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 3651750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 3652750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 3653750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 3654750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 3655750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 3656750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 3657750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 3658750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 3659750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 3660750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3661750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3662750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3663750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 3664750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 3665750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3666750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 3667750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3668750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 3669750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3670750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 3671750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3672750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 3673750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3674750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 3675750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3676750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3677750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 3678750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 3679750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 3680750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3681750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 3682750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 3683750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 3684750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi, CC); 3685750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 3686750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 3687750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result, Tmp1, Tmp2)); 3688750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Result; 3689da06e9e665a1a94886541ed85e97315f58b357b0Nate Begeman Tmp2 = SDOperand(); 3690750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3691750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 36922b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 3693750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 3694750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 3695750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 3696750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 369735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 3698232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 3699232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 370035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 370135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 370235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 3703ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(DestVT); 370435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 370535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 37068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, NULL, 0); 370735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 3708466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 370935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 371035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 37114352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 37124352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 37134352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 37144352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand StackPtr = CreateStackTemporary(Node->getValueType(0)); 3715786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 37168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0); 3717466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, NULL, 0); 37184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 37194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 37204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 3721ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 3722ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// support the operation, but do support the resultant packed vector type. 3723ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 3724ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3725ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 372687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 3727033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 3728ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 372987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 3730033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 3731033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 37322eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 37332eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 37342eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 37352eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 37362eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 3737033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 3738033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 373989a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 3740033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 3741ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 3742033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 374387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 37442eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 37452eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 37462eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 37472eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 37482eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 37492eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 3750ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3751ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3752ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 3753ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 3754ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 3755ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 3756ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 3757ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 3758ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 3759ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3760ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 37612eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 3762ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 3763ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 3764ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 3765ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 3766ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 3767033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 3768ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 3769ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 3770ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(ConstantFP::get(OpNTy, V->getValue())); 3771ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 3772ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 3773b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 3774ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 3775ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 3776ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 3777ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3778ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3779ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Constant *CP = ConstantPacked::get(CV); 3780ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 3781466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 3782ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 37832eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 37842eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 37852eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 37862eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 37872eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 37882eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand Zero = DAG.getConstant(0, MVT::getVectorBaseType(MaskVT)); 37892eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 3790bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 3791bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 3792033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 37932eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 37944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 37952eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 37962eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 37972eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 37982eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 37992eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 38002eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 38012eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 38022eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 38032eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 38042eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 38052eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 3806033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 3807033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 3808033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 3809033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 3810033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 3811033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 3812033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 3813033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 3814033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 3815033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 3816033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 3817033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 3818033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MaskVec[*II] = DAG.getConstant(i, MVT::getVectorBaseType(MaskVT)); 3819033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 3820033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 3821bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 3822bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 3823033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 3824033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 38254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 38264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 3827bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 3828033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 3829033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 3830033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 3831033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 3832033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 3833033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 3834033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 3835033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 3836033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 3837bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 3838bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 3839033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 3840033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 3841ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3842ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 3843ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 3844ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 3845ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 3846ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 3847ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(VT); 3848ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3849ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 3850bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 3851ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 3852ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 3853ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 3854ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 3855ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 3856ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 3857ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3858841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 3859ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3860ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 3861ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 3862ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3863786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 38648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 3865ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3866ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3867ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 3868ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 3869bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 3870bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 3871ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 3872ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 3873ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3874ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 3875466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 3876ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 3877ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3878ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// CreateStackTemporary - Create a stack temporary, suitable for holding the 3879ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// specified value type. 3880ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::CreateStackTemporary(MVT::ValueType VT) { 3881ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo(); 3882ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned ByteSize = MVT::getSizeInBits(VT)/8; 3883ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner int FrameIdx = FrameInfo->CreateStackObject(ByteSize, ByteSize); 3884ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getFrameIndex(FrameIdx, TLI.getPointerTy()); 3885ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 3886ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 38875b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 38885b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 38895b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 38905b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 38915b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 38925b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 38935b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 3894bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 3895f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 3896f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 38975b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 38985b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 38995b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 39005b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 3901e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 3902e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 3903e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 3904e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 3905e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 3906e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 3907e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 3908e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 3909f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 3910e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 3911f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 3912f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 3913f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 3914f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 3915f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 3916f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Handle the case when Amt is an immediate. Other cases are currently broken 3917f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // and are disabled. 3918f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 3919f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 3920f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 3921f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 3922f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 3923f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 3924f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 3925f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3926f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 3927f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 3928f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3929f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 3930f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 3931ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3932ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 3933ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 3934f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3935f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 3936f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 3937f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 3938f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 3939f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3940f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3941f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 3942f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3943f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 3944f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 3945f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3946f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 3947f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 3948ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3949ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 3950ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 3951f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3952f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 3953f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 3954f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 3955f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 3956f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3957f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3958f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 3959f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3960edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 3961f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 3962f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3963edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 3964f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 3965edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 3966f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 3967ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3968ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 3969edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 3970ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 3971f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3972f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 3973f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 3974f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 3975f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 3976f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3977f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3978f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3979f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 39800ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 39810ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 39820ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 39830ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner uint64_t Mask = NVTBits, KnownZero, KnownOne; 39840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner TLI.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 39850ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 39860ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is one, then we can do 39870ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 39880ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownOne & Mask) { 39890ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 39900ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 39910ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 39920ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 39930ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 39940ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 39950ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 39960ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 39970ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 39980ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 39990ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 40000ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 40010ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 40020ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 40030ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 40040ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 40050ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 40060ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 40070ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 40080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 40090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 40100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 40110ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 40120ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 40130ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is zero, then we can do 40140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 40150ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownZero & Mask) { 40160ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 40170ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 40180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 40190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 40200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 40210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 40220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 40230ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 40240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 40250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 40260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 40270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 40280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 40290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 40300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 40310ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 40320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 40330ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 40340ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 40350ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 40360ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 40370ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 40380ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 40390ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 40400ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 40410ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 40420ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 40430ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 40440ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 40450ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 4046f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 4047e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 404877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 40499c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 405077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 405177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 405277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 405377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 405477e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 405577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi) { 40566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 40576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 40586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 40596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 40606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 40616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 406277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 406377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 406477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 406577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 406677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Args.push_back(std::make_pair(Node->getOperand(i), ArgTy)); 406777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 406877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 4069edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 40700d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 407177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 40720d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 4073adf6a965a321372c640845407195594835921eb4Chris Lattner TLI.LowerCallTo(InChain, RetTy, false, CallingConv::C, false, 4074adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 40750d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 40766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 40776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 40786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 40796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 408099c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 40810d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 408277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 408377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 4084456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 408599c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 408677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 408799c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 408899c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 408977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 409022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 409122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 409222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 409322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 409422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandIntToFP - Expand a [US]INT_TO_FP operation, assuming that the 409522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// destination type is legal. 409622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 409722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 409822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(isTypeLegal(DestTy) && "Destination type is not legal!"); 409922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 410022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 410122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 410222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 410322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 410422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 410522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 410622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 410722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 410822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 410922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 411022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 411122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 411222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 411322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 411422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 411522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 411622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 411722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 411822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 411922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 412022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 412122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 412222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 412322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 412422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 4125b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::ULongTy, FF); 412622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 412722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 412822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 412922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 413022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 4131466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 413222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 413322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unexpected conversion"); 413422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 4135466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng CPIdx, NULL, 0, MVT::f32); 413622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 413722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 413822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 413922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 414022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 414122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 414222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 414322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 414422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 414522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 414622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 414722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 414822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 414922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 415022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 415122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 415222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 415322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 415422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 415522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 415622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 415722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 415822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 415922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 416022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 416122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner const char *FnName = 0; 416222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 416322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FnName = "__floatdisf"; 416422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 416522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 416622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FnName = "__floatdidf"; 416722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 41686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 41696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 41706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 417125125697fb0a761da440b222671cf2d6d4deaeacChris Lattner return ExpandLibCall(FnName, Source.Val, UnusedHiPart); 417222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 417322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 417422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 417522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 417622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 417722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 417822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 417922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 418022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 418122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 418222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 418322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 418422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get the stack frame index of a 8 byte buffer 418522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 418622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, 8); 418722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 418822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 418922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 419022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 419122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 4192408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 4193408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 4194408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 4195408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 4196408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 419722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 419822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 419922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 420022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 420122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 420222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 420322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 420422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 420522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 420622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 4207786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 42088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 420922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 421022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 421122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 42128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 421322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 4214466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 421522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 421622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 421722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 421822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 421922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 422022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 422122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 422222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 422322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 422422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 422522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 422622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 422722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 422822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 422922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if f32 then cast to f32 423022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f32, Sub); 423122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 423222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 423322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 423422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 423522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 423622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 423722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 423822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 423922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 424022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 424122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 424222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 424322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 424422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 424522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 424622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 424722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 424822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 424922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 425022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 425122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 425222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 425322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 425422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 425522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 4256b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::ULongTy, FF); 425722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 425822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 425922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 426022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 426122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 4262466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 426322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 426422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestVT == MVT::f64 && "Unexpected conversion"); 426522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, 426622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 4267466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng NULL, 0, MVT::f32)); 426822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 426922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 427022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 427122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 427222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 427322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 427422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 427522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 427622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 427722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 427822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 427922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 428022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 428122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 428222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 428322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 428422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 428522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 428622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 428722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 428822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 428922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 429022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 429122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 429222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 429322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 429422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 429522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 429622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 429722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 429822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 429922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 430022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 430122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 430222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 430322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 430422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 430522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 430622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 430722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 430822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 430922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 431022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 431122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 431222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 431322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 431422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 431522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 431622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 431722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 431822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 431922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 432022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 432122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 432222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 432322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 432422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 432522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 432677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 432777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 432822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 432922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 433022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 433122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 433222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 433322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 433422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 433522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 433622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 433722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 43389c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 433922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 4340e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 434122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 434222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 434322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 434422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 434566de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 434622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 434722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 434822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 434922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 435022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 435122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 435222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 435322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 435422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 435522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 435622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 435722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 4358e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 435922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 436022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 436122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 436222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 436322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 436422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 436522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 436622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 436722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 436822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 4369e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 437022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 43710d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 437222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 4373a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 4374a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 437522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Truncate the result of the 437622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // extended FP_TO_*INT operation to the desired size. 437722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, 437822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(OpToUse, NewOutTy, LegalOp)); 437922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 438013689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 438122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 438222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 438322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 438422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 438522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 438622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 438722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 438822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 438922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 439022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 439122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 439222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 439322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 439422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 439522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 439622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 439722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 439822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 439922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 440022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 440122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 440222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 440322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 440422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 440522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 440622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 440722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 440822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 440922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 441022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 441122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 441222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 441322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 441422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 441522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 441622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 441722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 441822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 441922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 442022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 442122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 442222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 442322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 442422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 44250d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 442677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 4427edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 442822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 442922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 443022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 443122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 443222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 443322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 443422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 443522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 443622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 443722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 443822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 443922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 444022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 444122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned len = getSizeInBits(VT); 444222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 444322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 444422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 444522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 444622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 444722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 444822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 444922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 445022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 445122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 445222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 445322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 445422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 445522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 445622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 445722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 445822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 445922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 446022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 446122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 446222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 446322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 446422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned len = getSizeInBits(VT); 446522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 446622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 446722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 446822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 446922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 447022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 447122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 447222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 447322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 447422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 447522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 447622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 447722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 447822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 447922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 448022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 448122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 448222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 448322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 448422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 448522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 448622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(getSizeInBits(VT), VT), 448722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 448822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 448922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 449022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 449122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 4492e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 44933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 44943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 44953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 44963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 44973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 44983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 44993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 450071c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 45013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 45023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 45031a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 45041a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng VT == MVT::Vector) && 45053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 45063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 45076fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 45086fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 45096fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 45106fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 45116fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 45126fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 45136fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 45143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 45153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 45163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 4517348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 4518348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 4519348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 4520e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 4521832171cb9724d2d31c8dfb73172e2be8f6dd13eeBill Wendling cerr << "NODE: "; Node->dump(); cerr << "\n"; 4522e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 45233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 45243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 4525fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 4526aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 4527fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 4528fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 4529fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 45303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 45313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 45323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 45333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 45343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 45353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 4536004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 4537004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 4538279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 45399f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 45409f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 4541004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 4542004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 4543d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 45448137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 45458137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 45468137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 4547d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 454858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 454958f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 455058f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 45514bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 45524bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 45534bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 45544bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 45554bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 455658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 455758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 455858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 455958f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 4560d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 4561d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 4562d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 4563d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 4564d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 4565d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 4566d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4567d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 4568d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 4569edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 4570edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 45719b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 45729b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 45739b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 4574edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 4575edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 4576edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 457739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 457839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 45793becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 458039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 458139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 45827cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 45837cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 458439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 458539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 458639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 458739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 458839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 458939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 459039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 459139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 459239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 459339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 45943becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 459539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 459639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 45977cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 45987cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 459939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 460039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 460139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 460239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 460339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 460439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 460539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 4606edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 4607acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 46088137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 46098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 4610acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 4611acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 4612acc398c195a697795bff3245943d104eb19192b9Nate Begeman 4613acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 46148137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 4615acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 4616acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 4617acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 4618acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 4619acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 4620acc398c195a697795bff3245943d104eb19192b9Nate Begeman 46213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 4622466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 4623466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 4624466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 4625466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 4626466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4627466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 4628466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), LD->getSrcValueOffset()); 4629004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 4630004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 4631004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 4632004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 46339f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 46349f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 46359f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 4636004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 4637004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 4638466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4639466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 4640466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 4641466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 4642466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng getIntPtrConstant(IncrementSize)); 4643466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FIXME: This creates a bogus srcvalue! 4644466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), LD->getSrcValueOffset()); 4645466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4646466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 4647466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 4648466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 4649466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 4650466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4651466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 4652466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 4653466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (!TLI.isLittleEndian()) 4654466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 4655466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 46562e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType EVT = LD->getLoadedVT(); 4657548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 4658548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng if (VT == MVT::f64 && EVT == MVT::f32) { 4659548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 4660548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 4661548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng LD->getSrcValueOffset()); 4662548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 4663548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 4664548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 4665548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 4666548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 4667466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4668466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 4669466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 4670466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 4671466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 4672466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 4673466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset(), EVT); 4674466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4675466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 4676466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 4677466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4678466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 4679466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 4680466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 4681466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 4682466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 4683466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 4684466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 4685466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 4686466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 4687466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 4688466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 4689466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 4690466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 4691466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 46923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 46933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 46943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 46953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 46963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 46973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 46983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 46993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 47003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 47013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 47023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 47033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 47043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 4705456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 47063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 47073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 470819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 470919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 4710456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 471119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 471219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 47133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 47143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 47159373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 47169373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 47179373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 47189373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 471919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 472019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 47219373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 47229373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 472319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 472419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 472519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 47269373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 47279373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 47288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 472913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 47308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 473113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 473213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 473313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 47343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 47353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 47363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 47378137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 4738edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 47393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 47403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 47412dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 47428137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 47438137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 47443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 47453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 47468137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 47473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 47483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 47498137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4750edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 47513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 47523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 47533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 475435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 475535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 4756f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 4757f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 4758f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 4759f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 4760f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 4761f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 4762f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 4763f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 4764f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 4765f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 4766f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 47671a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 476813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 476913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 477019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 477119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 47727b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 47737b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 47747b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 47757b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 47767b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 47777b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 47787b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 47797b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 47801a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 47811a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 47821a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 4783f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 4784f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 478513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Tmp = ExpandBIT_CONVERT(VT, Node->getOperand(0)); 4786f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 478735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 478835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 478935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 4790f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 47918137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::READCYCLECOUNTER: 4792308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 4793308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 4794308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 47958137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = TLI.LowerOperation(Op, DAG); 47968137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner assert(Lo.Val && "Node must be custom expanded!"); 47978137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Lo.getValue(1); 4798308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 47998137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner LegalizeOp(Lo.getValue(2))); 4800f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 4801f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 48024e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 48034e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 48044e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner case ISD::FP_TO_SINT: 480580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 4806f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 4807f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 4808f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 48098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 48108137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 4811f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 4812d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 4813f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 4814f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 481580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 481680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 481707dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 481807dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 481907dffd6af673c73352150583150b242a93694f00Chris Lattner break; 482007dffd6af673c73352150583150b242a93694f00Chris Lattner } 482180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 4822d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 48234e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 482477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixsfdi", Node, Hi); 48254e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 482677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixdfdi", Node, Hi); 48274e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 4828d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 48294e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner case ISD::FP_TO_UINT: 483080a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 48318137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 48328137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 48338137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 48348137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 48358137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 48368137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 48378137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 48388137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 48398137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 48408137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 484107dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 484207dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 484307dffd6af673c73352150583150b242a93694f00Chris Lattner break; 484407dffd6af673c73352150583150b242a93694f00Chris Lattner } 484580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 4846d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 48474e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 484877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixunssfdi", Node, Hi); 48494e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 485077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixunsdfdi", Node, Hi); 48514e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 48524e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 485305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 485450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 4855348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 485650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 48578137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 485850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 485950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 486050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 486150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 486250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 486350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 486450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 486550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 486650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 486779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 486879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 486979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 487079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 487179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 487279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 487379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 487479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 487579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 487679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 487779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 487879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 487979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 488079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 488179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 488279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 488379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 488479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 4885e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 4886348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 4887e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 48884759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 48894759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 489005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 489105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 489205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 489305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 4894348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 48954759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 48964759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 48974759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 4898e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 489977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__ashldi3", Node, Hi); 4900e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 490105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 4902e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 490305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 490450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 4905348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 490650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 49078137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 490850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 490950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 491050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 491150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 491250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 491350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 491450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 491550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 491650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 4917e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 4918348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 4919e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 49204759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 49214759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 492205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 492305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 492405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 492505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 4926348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 49274759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 49284759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 49294759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 4930e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 493177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__ashrdi3", Node, Hi); 4932e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 493305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 493405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 493505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 493650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 4937348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 493850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 49398137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 494050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 494150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 494250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 494350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 494450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 494550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 494650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 494750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 494850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 4949e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 4950348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 4951e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 49524759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 49534759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 495405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 495505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 495605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 495705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 4958348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 49594759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 49604759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 49614759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 4962e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 496377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__lshrdi3", Node, Hi); 4964e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 496505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 4966e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 4967edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 49688137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 49698137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 49708137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 49718137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 49728137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 49738137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 49748137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 49758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 49768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 49778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 49788137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 49798137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 49808137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 49818137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 49828137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 498379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 498479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 4985bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 4986bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 4987bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 4988bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 4989551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 499079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 4991bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 499279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 4993551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 499479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 4995bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 499679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 4997551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 499884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 49998137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 5000c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 50017d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 50027d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 50038829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 50048829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 50058829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 50067d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 50077d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 50087d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 50097d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 50103f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 50113f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 50123f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS || HasMULHU) { 5013c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 5014c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 5015c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 501656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman unsigned SH = MVT::getSizeInBits(RH.getValueType())-1; 50172cbba8934745fe30662f2d5a59d03545ad5212c5Nate Begeman // FIXME: Move this to the dag combiner. 501856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // MULHS implicitly sign extends its inputs. Check to see if ExpandOp 501956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // extended the sign bit of the low half through the upper half, and if so 502056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // emit a MULHS instead of the alternate sequence that is valid for any 502156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // i64 x i64 multiply. 50223f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS && 502356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is RH an extension of the sign bit of RL? 502456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOpcode() == ISD::SRA && RH.getOperand(0) == RL && 502556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOperand(1).getOpcode() == ISD::Constant && 502656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(RH.getOperand(1))->getValue() == SH && 502756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is LH an extension of the sign bit of LL? 502856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOpcode() == ISD::SRA && LH.getOperand(0) == LL && 502956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOperand(1).getOpcode() == ISD::Constant && 503056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(LH.getOperand(1))->getValue() == SH) { 5031a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5032a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5033a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 503456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 5035a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 50363f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng } else if (HasMULHU) { 5037a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5038a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5039a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner 5040a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 504156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 504256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 504356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 504456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 504556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 5046a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 504756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 5048c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 50493f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 5050a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = ExpandLibCall("__muldi3" , Node, Hi); 5051c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 5052c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 505377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::SDIV: Lo = ExpandLibCall("__divdi3" , Node, Hi); break; 505477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::UDIV: Lo = ExpandLibCall("__udivdi3", Node, Hi); break; 505577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::SREM: Lo = ExpandLibCall("__moddi3" , Node, Hi); break; 505677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::UREM: Lo = ExpandLibCall("__umoddi3", Node, Hi); break; 50575c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 50581a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 50591a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng Lo = ExpandLibCall(((VT == MVT::f32) ? "__addsf3" : "__adddf3"), Node, Hi); 50601a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 50611a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 50621a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng Lo = ExpandLibCall(((VT == MVT::f32) ? "__subsf3" : "__subdf3"), Node, Hi); 50631a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 50641a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 50651a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng Lo = ExpandLibCall(((VT == MVT::f32) ? "__mulsf3" : "__muldf3"), Node, Hi); 50661a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 50671a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 50681a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng Lo = ExpandLibCall(((VT == MVT::f32) ? "__divsf3" : "__divdf3"), Node, Hi); 50691a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 50701a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 50711a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng Lo = ExpandLibCall("__extendsfdf2", Node, Hi); 50721a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 50731a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 50741a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng Lo = ExpandLibCall("__truncdfsf2", Node, Hi); 50751a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 507698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::SINT_TO_FP: { 507798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng const char *FnName = 0; 50785c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) 507998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng FnName = (VT == MVT::f32) ? "__floatdisf" : "__floatdidf"; 50805c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng else 508198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng FnName = (VT == MVT::f32) ? "__floatsisf" : "__floatsidf"; 508298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng Lo = ExpandLibCall(FnName, Node, Hi); 50835c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng break; 508498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 508598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::UINT_TO_FP: { 508698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng const char *FnName = 0; 50875c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) 508898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng FnName = (VT == MVT::f32) ? "__floatundisf" : "__floatundidf"; 50895c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng else 509098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng FnName = (VT == MVT::f32) ? "__floatunsisf" : "__floatunsidf"; 509198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng Lo = ExpandLibCall(FnName, Node, Hi); 50925c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng break; 50933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 509498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 509598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 509698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 509798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng const char *FnName = 0; 509898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 509998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: FnName = (VT == MVT::f32) ? "sqrtf" : "sqrt"; break; 510098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: FnName = (VT == MVT::f32) ? "sinf" : "sin"; break; 510198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: FnName = (VT == MVT::f32) ? "cosf" : "cos"; break; 510298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 510398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 510498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng Lo = ExpandLibCall(FnName, Node, Hi); 510598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 510698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 5107966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 5108966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5109966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 5110966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 5111966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5112966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5113966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 5114966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5115966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5116966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5117966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5118966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 5119966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5120966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 5121966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 5122966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5123966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5124966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 5125966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5126966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5127966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5128966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 512998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 51303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 513183397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 513283397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 513383397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 513483397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 513513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 513613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 513713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 513883397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 513905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 514005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 514105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng bool isNew = 514205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 514305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 51443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 51453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 5146c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// SplitVectorOp - Given an operand of MVT::Vector type, break it down into 5147c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// two smaller values of MVT::Vector type. 5148c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 5149c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 5150c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Cannot split non-vector type!"); 5151c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 5152c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = cast<ConstantSDNode>(*(Node->op_end()-2))->getValue(); 5153c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 5154c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NewNumElts = NumElements/2; 5155c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand NewNumEltsNode = DAG.getConstant(NewNumElts, MVT::i32); 5156c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TypeNode = *(Node->op_end()-1); 5157c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5158c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 5159c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 5160c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 5161c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 5162c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 5163c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 5164c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 5165c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5166c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5167c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 5168e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 5169e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 5170e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey Node->dump(); 5171e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 5172e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 5173b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::VBUILD_VECTOR: { 5174bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 5175bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_begin()+NewNumElts); 5176c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(NewNumEltsNode); 5177c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(TypeNode); 5178bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Lo = DAG.getNode(ISD::VBUILD_VECTOR, MVT::Vector, &LoOps[0], LoOps.size()); 5179c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5180bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts, 5181bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_end()-2); 5182c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(NewNumEltsNode); 5183c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(TypeNode); 5184bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Hi = DAG.getNode(ISD::VBUILD_VECTOR, MVT::Vector, &HiOps[0], HiOps.size()); 5185c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5186c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5187c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 5188c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 5189c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 5190c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 5191c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 5192c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 5193c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 5194c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: { 5195c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 5196c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 5197c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 5198c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5199c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getNode(Node->getOpcode(), MVT::Vector, LL, RL, 5200c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 5201c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getNode(Node->getOpcode(), MVT::Vector, LH, RH, 5202c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 5203c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5204c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5205c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 5206c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 5207c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5208c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(TypeNode)->getVT(); 5209c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5210c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 5211c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned IncrementSize = NewNumElts * MVT::getSizeInBits(EVT)/8; 5212c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 5213c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 5214c7029805ef35ce9805931067b841e6af11db382eChris Lattner // FIXME: This creates a bogus srcvalue! 5215c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 5216c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5217c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 5218c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 5219c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5220c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 5221c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5222c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5223c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5224c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5225c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 52267692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner case ISD::VBIT_CONVERT: { 52277692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 52287692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 52297692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner if (Op.getOperand(0).getValueType() != MVT::Vector) { 52307692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Lower to a store/load. FIXME: this could be improved probably. 52317692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDOperand Ptr = CreateStackTemporary(Op.getOperand(0).getValueType()); 52327692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 5233786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 52348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op.getOperand(0), Ptr, NULL, 0); 52357692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(TypeNode)->getVT(); 52367692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner St = DAG.getVecLoad(NumElements, EVT, St, Ptr, DAG.getSrcValue(0)); 52377692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(St, Lo, Hi); 52387692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } else { 52397692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // If the input is a vector type, we have to either scalarize it, pack it 52407692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // or convert it based on whether the input vector type is legal. 52417692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 52427692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner unsigned NumElems = 52437692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 52447692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 52457692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 52467692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // If the input is from a single element vector, scalarize the vector, 52477692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // then treat like a scalar. 52487692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner if (NumElems == 1) { 52497692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDOperand Scalar = PackVectorOp(Op.getOperand(0), EVT); 52507692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Scalar = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Scalar, 52517692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Op.getOperand(1), Op.getOperand(2)); 52527692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(Scalar, Lo, Hi); 52537692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } else { 52547692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Split the input vector. 52557692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(Op.getOperand(0), Lo, Hi); 52567692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 52577692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Convert each of the pieces now. 52587692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Lo = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Lo, 52597692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner NewNumEltsNode, TypeNode); 52607692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Hi = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Hi, 52617692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner NewNumEltsNode, TypeNode); 52627692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 52637692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner break; 52647692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 52657692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 5266c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5267c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5268c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 5269c7029805ef35ce9805931067b841e6af11db382eChris Lattner bool isNew = 5270c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 5271c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already expanded?!?"); 5272c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5273c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5274c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5275c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// PackVectorOp - Given an operand of MVT::Vector type, convert it into the 5276c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// equivalent operation that returns a scalar (e.g. F32) or packed value 5277c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// (e.g. MVT::V4F32). When this is called, we know that PackedVT is the right 5278c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// type for the result. 5279c7029805ef35ce9805931067b841e6af11db382eChris LattnerSDOperand SelectionDAGLegalize::PackVectorOp(SDOperand Op, 5280c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType NewVT) { 5281c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Bad PackVectorOp invocation!"); 5282c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 5283c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5284c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already packed it. 5285c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, SDOperand>::iterator I = PackedNodes.find(Op); 5286c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != PackedNodes.end()) return I->second; 5287c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5288c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 5289c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 52902332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 5291e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 5292832171cb9724d2d31c8dfb73172e2be8f6dd13eeBill Wendling Node->dump(); cerr << "\n"; 5293e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 52942332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner assert(0 && "Unknown vector operation in PackVectorOp!"); 5295c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 5296c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 5297c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 5298c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 5299c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 5300c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 5301c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 5302c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: 5303c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.getNode(getScalarizedOpcode(Node->getOpcode(), NewVT), 5304c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 5305c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(0), NewVT), 5306c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(1), NewVT)); 5307c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5308c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 53094794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SDOperand Ch = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 53104794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SDOperand Ptr = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 5311c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5312466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 5313466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(NewVT, Ch, Ptr, SV->getValue(), SV->getOffset()); 5314c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5315c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5316c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 5317c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5318c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5319b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::VBUILD_VECTOR: 532070c2a61e0a0fb0a7e8b9bddd26bdcc92762772f0Chris Lattner if (Node->getOperand(0).getValueType() == NewVT) { 5321b2827b0901162169bb2692b77a839c9767849134Chris Lattner // Returning a scalar? 5322c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = Node->getOperand(0); 5323c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 5324b2827b0901162169bb2692b77a839c9767849134Chris Lattner // Returning a BUILD_VECTOR? 532517614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner 532617614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner // If all elements of the build_vector are undefs, return an undef. 532717614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner bool AllUndef = true; 532817614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner for (unsigned i = 0, e = Node->getNumOperands()-2; i != e; ++i) 532917614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner if (Node->getOperand(i).getOpcode() != ISD::UNDEF) { 533017614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner AllUndef = false; 533117614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner break; 533217614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner } 533317614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner if (AllUndef) { 533417614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner Result = DAG.getNode(ISD::UNDEF, NewVT); 533517614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner } else { 5336bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, NewVT, Node->op_begin(), 5337bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->getNumOperands()-2); 533817614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner } 5339c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5340c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 53412332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::VINSERT_VECTOR_ELT: 53422332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (!MVT::isVector(NewVT)) { 53432332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // Returning a scalar? Must be the inserted element. 53442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Node->getOperand(1); 53452332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } else { 53462332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT, 53472332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner PackVectorOp(Node->getOperand(0), NewVT), 53482332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getOperand(1), Node->getOperand(2)); 53492332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 53502332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 53515b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner case ISD::VVECTOR_SHUFFLE: 53525b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner if (!MVT::isVector(NewVT)) { 53535b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner // Returning a scalar? Figure out if it is the LHS or RHS and return it. 53545b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner SDOperand EltNum = Node->getOperand(2).getOperand(0); 53555b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner if (cast<ConstantSDNode>(EltNum)->getValue()) 53565b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Result = PackVectorOp(Node->getOperand(1), NewVT); 53575b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner else 53585b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Result = PackVectorOp(Node->getOperand(0), NewVT); 53595b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner } else { 53605b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner // Otherwise, return a VECTOR_SHUFFLE node. First convert the index 53615b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner // vector from a VBUILD_VECTOR to a BUILD_VECTOR. 53625b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner std::vector<SDOperand> BuildVecIdx(Node->getOperand(2).Val->op_begin(), 53635b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Node->getOperand(2).Val->op_end()-2); 53645b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner MVT::ValueType BVT = MVT::getIntVectorWithNumElements(BuildVecIdx.size()); 5365bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand BV = DAG.getNode(ISD::BUILD_VECTOR, BVT, 5366bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->getOperand(2).Val->op_begin(), 5367bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->getOperand(2).Val->getNumOperands()-2); 53685b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner 53695b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NewVT, 53705b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner PackVectorOp(Node->getOperand(0), NewVT), 53715b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner PackVectorOp(Node->getOperand(1), NewVT), BV); 53725b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner } 53735b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner break; 5374e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner case ISD::VBIT_CONVERT: 5375e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner if (Op.getOperand(0).getValueType() != MVT::Vector) 5376e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 5377e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner else { 5378e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // If the input is a vector type, we have to either scalarize it, pack it 5379e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // or convert it based on whether the input vector type is legal. 5380e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 5381e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner unsigned NumElems = 5382e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 5383e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 5384e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner 5385e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 5386e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // type. If so, convert to the packed type. 5387e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 5388e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 5389e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Turn this into a bit convert of the packed input. 5390e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, 5391e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner PackVectorOp(Node->getOperand(0), TVT)); 5392e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner break; 5393e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } else if (NumElems == 1) { 5394e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Turn this into a bit convert of the scalar input. 5395e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, 5396e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner PackVectorOp(Node->getOperand(0), EVT)); 5397e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner break; 5398e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } else { 5399e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // FIXME: UNIMP! 5400e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner assert(0 && "Cast from unsupported vector type not implemented yet!"); 5401e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } 5402e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } 5403db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 5404b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner case ISD::VSELECT: 5405b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 5406b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner PackVectorOp(Op.getOperand(1), NewVT), 5407b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner PackVectorOp(Op.getOperand(2), NewVT)); 5408b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 5409c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5410c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5411c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 5412c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 5413c7029805ef35ce9805931067b841e6af11db382eChris Lattner bool isNew = PackedNodes.insert(std::make_pair(Op, Result)).second; 5414c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already packed?"); 5415c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 5416c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5417c7029805ef35ce9805931067b841e6af11db382eChris Lattner 54183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 54193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 54203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 54219c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 54225e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 54235e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 54243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 54253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 5426456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 54273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 54283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 5429