SelectionDAG.h revision aaffa05d0a652dd3eae76a941d02d6b0469fa821
1c3aae25116e66c177579b0b79182b09340b19753Chris Lattner//===-- llvm/CodeGen/SelectionDAG.h - InstSelection DAG ---------*- C++ -*-===// 2ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 36fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// The LLVM Compiler Infrastructure 46fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// 57ed47a13356daed2a34cd2209a31f92552e3bdd8Chris Lattner// This file is distributed under the University of Illinois Open Source 67ed47a13356daed2a34cd2209a31f92552e3bdd8Chris Lattner// License. See LICENSE.TXT for details. 7ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 86fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell//===----------------------------------------------------------------------===// 9ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 10c3aae25116e66c177579b0b79182b09340b19753Chris Lattner// This file declares the SelectionDAG class, and transitively defines the 11c3aae25116e66c177579b0b79182b09340b19753Chris Lattner// SDNode class and subclasses. 12ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 13cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner//===----------------------------------------------------------------------===// 14cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 15cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#ifndef LLVM_CODEGEN_SELECTIONDAG_H 16cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#define LLVM_CODEGEN_SELECTIONDAG_H 17cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 18fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman#include "llvm/ADT/ilist.h" 19c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene#include "llvm/ADT/DenseSet.h" 20583bd47f777fe3eb8305872fa0eadab31e833dffJim Laskey#include "llvm/ADT/FoldingSet.h" 214b84086e89d86fb16f562166d9fea8df37db6be7Dan Gohman#include "llvm/ADT/StringMap.h" 22583bd47f777fe3eb8305872fa0eadab31e833dffJim Laskey#include "llvm/CodeGen/SelectionDAGNodes.h" 23b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 24acaf09dbe4a6781163857db1321bbd5795e7d410Dan Gohman#include <cassert> 255892d47a625638a90afeb31dd4f6f80a2f9bacdeChris Lattner#include <vector> 26322812e603705e1c2037313633e72f689524b163Evan Cheng#include <map> 27eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner#include <string> 28d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 29d0fde30ce850b78371fd1386338350591f9ff494Brian Gaekenamespace llvm { 30fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman 31fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohmanclass AliasAnalysis; 32fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohmanclass TargetLowering; 33fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohmanclass TargetMachine; 34fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohmanclass MachineModuleInfo; 35fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohmanclass MachineFunction; 36fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohmanclass MachineConstantPoolValue; 37fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohmanclass FunctionLoweringInfo; 38fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman 398e4018e2de52c534405d7155c7009d0b35afb861Cedric Venettemplate<> struct ilist_traits<SDNode> : public ilist_default_traits<SDNode> { 408e4018e2de52c534405d7155c7009d0b35afb861Cedric Venetprivate: 41fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman mutable SDNode Sentinel; 42fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohmanpublic: 43fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman ilist_traits() : Sentinel(ISD::DELETED_NODE, SDVTList()) {} 44fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman 45fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman SDNode *createSentinel() const { 46fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman return &Sentinel; 47fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman } 48fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman static void destroySentinel(SDNode *) {} 49fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman 50fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman static void deleteNode(SDNode *) { 51fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman assert(0 && "ilist_traits<SDNode> shouldn't see a deleteNode call!"); 52fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman } 53fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohmanprivate: 54fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman static void createNode(const SDNode &); 55fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman}; 56c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 5725cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sandsenum CombineLevel { 5825cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands Unrestricted, // Combine may create illegal operations and illegal types. 5925cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands NoIllegalTypes, // Combine may create illegal operations but no illegal types. 6025cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands NoIllegalOperations // Combine may only create legal operations and types. 6125cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands}; 6225cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands 63c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// SelectionDAG class - This is used to represent a portion of an LLVM function 64c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// in a low-level Data Dependence DAG representation suitable for instruction 65c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection. This DAG is constructed as the first step of instruction 66c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection in order to allow implementation of machine specific optimizations 67c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// and code simplifications. 68c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// 69c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// The representation used by the SelectionDAG is a target-independent 70c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// representation, which has some similarities to the GCC RTL representation, 71c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// but is significantly more simple, powerful, and is a graph form instead of a 72c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// linear form. 73cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner/// 74cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerclass SelectionDAG { 75063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner TargetLowering &TLI; 767c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman MachineFunction *MF; 77ead0d88ad7659dabd66cc3149af97d98256fca84Chris Lattner FunctionLoweringInfo &FLI; 7844c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI; 79cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 80f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// EntryNode - The starting token. 81f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman SDNode EntryNode; 82f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman 83f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// Root - The root of the entire DAG. 84f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman SDValue Root; 85cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 86213a16c637926bfc38ba373d3aba6778e181e3ecChris Lattner /// AllNodes - A linked list of nodes in the current DAG. 87fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman ilist<SDNode> AllNodes; 88fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman 89f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// NodeAllocatorType - The AllocatorType for allocating SDNodes. We use 90f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// pool allocation with recycling. 91f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman typedef RecyclingAllocator<BumpPtrAllocator, SDNode, sizeof(LargestSDNode), 92f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman AlignOf<MostAlignedSDNode>::Alignment> 93f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman NodeAllocatorType; 94f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman 95f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// NodeAllocator - Pool allocation for nodes. 96f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman NodeAllocatorType NodeAllocator; 97691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth 98213a16c637926bfc38ba373d3aba6778e181e3ecChris Lattner /// CSEMap - This structure is used to memoize nodes, automatically performing 99213a16c637926bfc38ba373d3aba6778e181e3ecChris Lattner /// CSE with existing nodes with a duplicate is requested. 100583bd47f777fe3eb8305872fa0eadab31e833dffJim Laskey FoldingSet<SDNode> CSEMap; 101213a16c637926bfc38ba373d3aba6778e181e3ecChris Lattner 102f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// OperandAllocator - Pool allocation for machine-opcode SDNode operands. 103f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman BumpPtrAllocator OperandAllocator; 104f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman 105e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// Allocator - Pool allocation for misc. objects that are created once per 106e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// SelectionDAG. 107e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman BumpPtrAllocator Allocator; 108e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman 109d038e04188047eca4749d025ef1f05f7ae660bcaDuncan Sands /// VerifyNode - Sanity check the given node. Aborts if it is invalid. 110d038e04188047eca4749d025ef1f05f7ae660bcaDuncan Sands void VerifyNode(SDNode *N); 111d038e04188047eca4749d025ef1f05f7ae660bcaDuncan Sands 112c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene /// setGraphColorHelper - Implementation of setSubgraphColor. 113c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene /// Return whether we had to truncate the search. 114c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene /// 115c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene bool setSubgraphColorHelper(SDNode *N, const char *Color, DenseSet<SDNode *> &visited, 116c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene int level, bool &printed); 117c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene 118cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerpublic: 1197c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman SelectionDAG(TargetLowering &tli, FunctionLoweringInfo &fli); 120cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner ~SelectionDAG(); 121cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 1227c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman /// init - Prepare this SelectionDAG to process code in the given 1237c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman /// MachineFunction. 1247c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman /// 1257c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman void init(MachineFunction &mf, MachineModuleInfo *mmi); 1267c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman 1277c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman /// clear - Clear state and free memory necessary to make this 128f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// SelectionDAG ready to process a new block. 129f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// 1307c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman void clear(); 131f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman 1327c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman MachineFunction &getMachineFunction() const { return *MF; } 133063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner const TargetMachine &getTarget() const; 134063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner TargetLowering &getTargetLoweringInfo() const { return TLI; } 135ead0d88ad7659dabd66cc3149af97d98256fca84Chris Lattner FunctionLoweringInfo &getFunctionLoweringInfo() const { return FLI; } 13644c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *getMachineModuleInfo() const { return MMI; } 137cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 138ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// viewGraph - Pop up a GraphViz/gv window with the DAG rendered using 'dot'. 1391080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner /// 140462dc7f4960e5074ddf4769ec8b2ef1ba7a4d2c8Dan Gohman void viewGraph(const std::string &Title); 1410b12aef49087b57d276ed760a83525d1e2602144Dan Gohman void viewGraph(); 142ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey 143ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey#ifndef NDEBUG 144ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey std::map<const SDNode *, std::string> NodeGraphAttrs; 145ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey#endif 1461080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 147ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// clearGraphAttrs - Clear all previously defined node graph attributes. 148ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// Intended to be used from a debugging tool (eg. gdb). 149ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey void clearGraphAttrs(); 150ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey 151ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// setGraphAttrs - Set graph attributes for a node. (eg. "color=red".) 152ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// 153ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey void setGraphAttrs(const SDNode *N, const char *Attrs); 154ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey 155ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// getGraphAttrs - Get graph attributes for a node. (eg. "color=red".) 156ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// Used from getNodeAttributes. 157ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey const std::string getGraphAttrs(const SDNode *N) const; 158ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey 159ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// setGraphColor - Convenience for setting node color attribute. 160ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// 161ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey void setGraphColor(const SDNode *N, const char *Color); 1621080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 163c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene /// setGraphColor - Convenience for setting subgraph color attribute. 164c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene /// 165c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene void setSubgraphColor(SDNode *N, const char *Color); 166c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene 167fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman typedef ilist<SDNode>::const_iterator allnodes_const_iterator; 168b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_const_iterator allnodes_begin() const { return AllNodes.begin(); } 169b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_const_iterator allnodes_end() const { return AllNodes.end(); } 170fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman typedef ilist<SDNode>::iterator allnodes_iterator; 171b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_iterator allnodes_begin() { return AllNodes.begin(); } 172b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_iterator allnodes_end() { return AllNodes.end(); } 173fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman ilist<SDNode>::size_type allnodes_size() const { 1740e5f1306b059b62d7725f324e087efbc8e7a782dDan Gohman return AllNodes.size(); 1750e5f1306b059b62d7725f324e087efbc8e7a782dDan Gohman } 176b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 177c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getRoot - Return the root tag of the SelectionDAG. 178cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 179475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue &getRoot() const { return Root; } 180cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 181c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getEntryNode - Return the token chain corresponding to the entry of the 182c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// function. 183f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman SDValue getEntryNode() const { 184f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman return SDValue(const_cast<SDNode *>(&EntryNode), 0); 185f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman } 186cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 187c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// setRoot - Set the current root tag of the SelectionDAG. 188cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 189475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue &setRoot(SDValue N) { 190ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert((!N.getNode() || N.getValueType() == MVT::Other) && 191acaf09dbe4a6781163857db1321bbd5795e7d410Dan Gohman "DAG root value is not a chain!"); 192acaf09dbe4a6781163857db1321bbd5795e7d410Dan Gohman return Root = N; 193acaf09dbe4a6781163857db1321bbd5795e7d410Dan Gohman } 194cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 1951d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// Combine - This iterates over the nodes in the SelectionDAG, folding 19625cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands /// certain types of nodes together, or eliminating superfluous nodes. The 19725cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands /// Level argument controls whether Combine is allowed to produce nodes and 19825cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands /// types that are illegal on the target. 19925cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands void Combine(CombineLevel Level, AliasAnalysis &AA, bool Fast); 20025cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands 20101d029b82cb08367d81aa10cdc94d05360466649Chris Lattner /// LegalizeTypes - This transforms the SelectionDAG into a SelectionDAG that 20225cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands /// only uses types natively supported by the target. Returns "true" if it 20325cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands /// made any changes. 20401d029b82cb08367d81aa10cdc94d05360466649Chris Lattner /// 20501d029b82cb08367d81aa10cdc94d05360466649Chris Lattner /// Note that this is an involved process that may invalidate pointers into 20601d029b82cb08367d81aa10cdc94d05360466649Chris Lattner /// the graph. 20725cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands bool LegalizeTypes(); 20825cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands 209c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Legalize - This transforms the SelectionDAG into a SelectionDAG that is 210c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// compatible with the target instruction selector, as indicated by the 211c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// TargetLowering object. 212cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 213c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Note that this is an involved process that may invalidate pointers into 214c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// the graph. 215063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner void Legalize(); 216c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 217d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// RemoveDeadNodes - This method deletes all unreachable nodes in the 218190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner /// SelectionDAG. 219190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner void RemoveDeadNodes(); 220130a6471b90f66e99b1f9f42877fdf611c330ac6Evan Cheng 221130a6471b90f66e99b1f9f42877fdf611c330ac6Evan Cheng /// DeleteNode - Remove the specified node from the system. This node must 222130a6471b90f66e99b1f9f42877fdf611c330ac6Evan Cheng /// have no referrers. 223130a6471b90f66e99b1f9f42877fdf611c330ac6Evan Cheng void DeleteNode(SDNode *N); 224130a6471b90f66e99b1f9f42877fdf611c330ac6Evan Cheng 22570046e920fa37989a041af663ada2b2b646e258fChris Lattner /// getVTList - Return an SDVTList that represents the list of values 22670046e920fa37989a041af663ada2b2b646e258fChris Lattner /// specified. 22783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDVTList getVTList(MVT VT); 22883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDVTList getVTList(MVT VT1, MVT VT2); 22983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDVTList getVTList(MVT VT1, MVT VT2, MVT VT3); 23083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDVTList getVTList(const MVT *VTs, unsigned NumVTs); 23170046e920fa37989a041af663ada2b2b646e258fChris Lattner 23270046e920fa37989a041af663ada2b2b646e258fChris Lattner /// getNodeValueTypes - These are obsolete, use getVTList instead. 23383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const MVT *getNodeValueTypes(MVT VT) { 23470046e920fa37989a041af663ada2b2b646e258fChris Lattner return getVTList(VT).VTs; 23570046e920fa37989a041af663ada2b2b646e258fChris Lattner } 23683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const MVT *getNodeValueTypes(MVT VT1, MVT VT2) { 23770046e920fa37989a041af663ada2b2b646e258fChris Lattner return getVTList(VT1, VT2).VTs; 23870046e920fa37989a041af663ada2b2b646e258fChris Lattner } 23983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const MVT *getNodeValueTypes(MVT VT1, MVT VT2, MVT VT3) { 24070046e920fa37989a041af663ada2b2b646e258fChris Lattner return getVTList(VT1, VT2, VT3).VTs; 24170046e920fa37989a041af663ada2b2b646e258fChris Lattner } 242f877b735ad4987f26cafcbaf22aa4c2199458b5dDan Gohman const MVT *getNodeValueTypes(const std::vector<MVT> &vtList) { 24313d57320bd212483463d4f8992d5787b29eda5dfBill Wendling return getVTList(&vtList[0], (unsigned)vtList.size()).VTs; 24470046e920fa37989a041af663ada2b2b646e258fChris Lattner } 24570046e920fa37989a041af663ada2b2b646e258fChris Lattner 24670046e920fa37989a041af663ada2b2b646e258fChris Lattner 2471b1a49714ef26225a42199cf2930529f31868322Chris Lattner //===--------------------------------------------------------------------===// 24870046e920fa37989a041af663ada2b2b646e258fChris Lattner // Node creation methods. 24970046e920fa37989a041af663ada2b2b646e258fChris Lattner // 250475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getConstant(uint64_t Val, MVT VT, bool isTarget = false); 251475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getConstant(const APInt &Val, MVT VT, bool isTarget = false); 2524fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman SDValue getConstant(const ConstantInt &Val, MVT VT, bool isTarget = false); 253475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getIntPtrConstant(uint64_t Val, bool isTarget = false); 254475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getTargetConstant(uint64_t Val, MVT VT) { 255cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner return getConstant(Val, VT, true); 256cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner } 257475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getTargetConstant(const APInt &Val, MVT VT) { 2586394b099e836f56a937cdcc7332c9487b504ca68Dan Gohman return getConstant(Val, VT, true); 2596394b099e836f56a937cdcc7332c9487b504ca68Dan Gohman } 2604fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman SDValue getTargetConstant(const ConstantInt &Val, MVT VT) { 2614fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman return getConstant(Val, VT, true); 2624fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman } 263475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getConstantFP(double Val, MVT VT, bool isTarget = false); 264475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getConstantFP(const APFloat& Val, MVT VT, bool isTarget = false); 2654fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman SDValue getConstantFP(const ConstantFP &CF, MVT VT, bool isTarget = false); 266475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getTargetConstantFP(double Val, MVT VT) { 267c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner return getConstantFP(Val, VT, true); 268c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner } 269475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getTargetConstantFP(const APFloat& Val, MVT VT) { 270f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen return getConstantFP(Val, VT, true); 271f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen } 2724fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman SDValue getTargetConstantFP(const ConstantFP &Val, MVT VT) { 2734fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman return getConstantFP(Val, VT, true); 2744fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman } 275475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getGlobalAddress(const GlobalValue *GV, MVT VT, 2766520e20e4fb31f2e65e25c38b372b19d33a83df4Dan Gohman int64_t offset = 0, bool isTargetGA = false); 277475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getTargetGlobalAddress(const GlobalValue *GV, MVT VT, 2786520e20e4fb31f2e65e25c38b372b19d33a83df4Dan Gohman int64_t offset = 0) { 279cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner return getGlobalAddress(GV, VT, offset, true); 280cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner } 281475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getFrameIndex(int FI, MVT VT, bool isTarget = false); 282475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getTargetFrameIndex(int FI, MVT VT) { 283c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner return getFrameIndex(FI, VT, true); 284c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner } 285475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getJumpTable(int JTI, MVT VT, bool isTarget = false); 286475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getTargetJumpTable(int JTI, MVT VT) { 287c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner return getJumpTable(JTI, VT, true); 288c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner } 289475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getConstantPool(Constant *C, MVT VT, 290c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner unsigned Align = 0, int Offs = 0, bool isT=false); 291475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getTargetConstantPool(Constant *C, MVT VT, 292c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner unsigned Align = 0, int Offset = 0) { 293c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner return getConstantPool(C, VT, Align, Offset, true); 294c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner } 295475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getConstantPool(MachineConstantPoolValue *C, MVT VT, 296d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng unsigned Align = 0, int Offs = 0, bool isT=false); 297475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getTargetConstantPool(MachineConstantPoolValue *C, 29883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT, unsigned Align = 0, 299d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng int Offset = 0) { 300d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng return getConstantPool(C, VT, Align, Offset, true); 301d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng } 302475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getBasicBlock(MachineBasicBlock *MBB); 303056292fd738924f3f7703725d8f630983794b5a5Bill Wendling SDValue getExternalSymbol(const char *Sym, MVT VT); 304056292fd738924f3f7703725d8f630983794b5a5Bill Wendling SDValue getTargetExternalSymbol(const char *Sym, MVT VT); 305475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getArgFlags(ISD::ArgFlagsTy Flags); 306475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getValueType(MVT); 307475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getRegister(unsigned Reg, MVT VT); 308475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getDbgStopPoint(SDValue Root, unsigned Line, unsigned Col, 3097f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman const CompileUnitDesc *CU); 310475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getLabel(unsigned Opcode, SDValue Root, unsigned LabelID); 311c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 312475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getCopyToReg(SDValue Chain, unsigned Reg, SDValue N) { 313d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return getNode(ISD::CopyToReg, MVT::Other, Chain, 314d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner getRegister(Reg, N.getValueType()), N); 315cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 316cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 317e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // This version of the getCopyToReg method takes an extra operand, which 318e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // indicates that there is potentially an incoming flag value (if Flag is not 319e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // null) and that there should be a flag result. 320475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getCopyToReg(SDValue Chain, unsigned Reg, SDValue N, 321475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Flag) { 32283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const MVT *VTs = getNodeValueTypes(MVT::Other, MVT::Flag); 323475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { Chain, getRegister(Reg, N.getValueType()), N, Flag }; 324ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif return getNode(ISD::CopyToReg, VTs, 2, Ops, Flag.getNode() ? 4 : 3); 325e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner } 32666a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng 327475871a144eb604ddaf37503397ba0941442e5fbDan Gohman // Similar to last getCopyToReg() except parameter Reg is a SDValue 328475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getCopyToReg(SDValue Chain, SDValue Reg, SDValue N, 329475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Flag) { 33083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const MVT *VTs = getNodeValueTypes(MVT::Other, MVT::Flag); 331475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { Chain, Reg, N, Flag }; 332ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif return getNode(ISD::CopyToReg, VTs, 2, Ops, Flag.getNode() ? 4 : 3); 33366a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng } 334e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner 335475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getCopyFromReg(SDValue Chain, unsigned Reg, MVT VT) { 33683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const MVT *VTs = getNodeValueTypes(VT, MVT::Other); 337475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { Chain, getRegister(Reg, VT) }; 3382fa6d3b1fcadbde90eaee0e8e89aebd81630b662Chris Lattner return getNode(ISD::CopyFromReg, VTs, 2, Ops, 2); 33918c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner } 340e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner 341e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // This version of the getCopyFromReg method takes an extra operand, which 342e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // indicates that there is potentially an incoming flag value (if Flag is not 343e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // null) and that there should be a flag result. 344475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getCopyFromReg(SDValue Chain, unsigned Reg, MVT VT, 345475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Flag) { 34683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const MVT *VTs = getNodeValueTypes(VT, MVT::Other, MVT::Flag); 347475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { Chain, getRegister(Reg, VT), Flag }; 348ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif return getNode(ISD::CopyFromReg, VTs, 3, Ops, Flag.getNode() ? 3 : 2); 349e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner } 35018c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner 351475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getCondCode(ISD::CondCode Cond); 352cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 35377cdf30742284a173fe818417eb482224cdee8d4Mon P Wang /// Returns the ConvertRndSat Note: Avoid using this node because it may 35477cdf30742284a173fe818417eb482224cdee8d4Mon P Wang /// disappear in the future and most targets don't support it. 35577cdf30742284a173fe818417eb482224cdee8d4Mon P Wang SDValue getConvertRndSat(MVT VT, SDValue Val, SDValue DTy, SDValue STy, 35677cdf30742284a173fe818417eb482224cdee8d4Mon P Wang SDValue Rnd, SDValue Sat, ISD::CvtCode Code); 35777cdf30742284a173fe818417eb482224cdee8d4Mon P Wang 3581ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// getZeroExtendInReg - Return the expression required to zero extend the Op 3591ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// value assuming it was the smaller SrcTy value. 360475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getZeroExtendInReg(SDValue Op, MVT SrcTy); 3616a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner 3626a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner /// getCALLSEQ_START - Return a new CALLSEQ_START node, which always must have 3636a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner /// a flag result (to ensure it's not CSE'd). 364475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getCALLSEQ_START(SDValue Chain, SDValue Op) { 36583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const MVT *VTs = getNodeValueTypes(MVT::Other, MVT::Flag); 366475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { Chain, Op }; 3672fa6d3b1fcadbde90eaee0e8e89aebd81630b662Chris Lattner return getNode(ISD::CALLSEQ_START, VTs, 2, Ops, 2); 3686a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner } 3691ccae666f596d5aeca5c9942995763600b622062Chris Lattner 3700f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling /// getCALLSEQ_END - Return a new CALLSEQ_END node, which always must have a 3710f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling /// flag result (to ensure it's not CSE'd). 372475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getCALLSEQ_END(SDValue Chain, SDValue Op1, SDValue Op2, 373475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InFlag) { 3740f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling SDVTList NodeTys = getVTList(MVT::Other, MVT::Flag); 375475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 4> Ops; 3760f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Ops.push_back(Chain); 3770f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Ops.push_back(Op1); 3780f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Ops.push_back(Op2); 3790f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Ops.push_back(InFlag); 3800f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling return getNode(ISD::CALLSEQ_END, NodeTys, &Ops[0], 381ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif (unsigned)Ops.size() - (InFlag.getNode() == 0 ? 1 : 0)); 3820f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling } 3830f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 384c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getNode - Gets or creates the specified node. 385cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 386475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, MVT VT); 387475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, MVT VT, SDValue N); 388475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, MVT VT, SDValue N1, SDValue N2); 389475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, MVT VT, 390475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue N1, SDValue N2, SDValue N3); 391475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, MVT VT, 392475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue N1, SDValue N2, SDValue N3, SDValue N4); 393475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, MVT VT, 394475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue N1, SDValue N2, SDValue N3, SDValue N4, 395475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue N5); 396475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, MVT VT, 397475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 398475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, MVT VT, 3996d9cdd56173fb915a9e3a8f0f6b5a8ed9bed1098Dan Gohman const SDUse *Ops, unsigned NumOps); 400475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, const std::vector<MVT> &ResultTys, 401475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 402475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, const MVT *VTs, unsigned NumVTs, 403475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 404475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, SDVTList VTs); 405475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, SDVTList VTs, SDValue N); 406475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, SDVTList VTs, SDValue N1, SDValue N2); 407475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, SDVTList VTs, 40801f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng SDValue N1, SDValue N2, SDValue N3); 409475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, SDVTList VTs, 41001f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng SDValue N1, SDValue N2, SDValue N3, SDValue N4); 411475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, SDVTList VTs, 41201f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng SDValue N1, SDValue N2, SDValue N3, SDValue N4, 41301f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng SDValue N5); 414475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getNode(unsigned Opcode, SDVTList VTs, 41501f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng const SDValue *Ops, unsigned NumOps); 416475871a144eb604ddaf37503397ba0941442e5fbDan Gohman 417475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getMemcpy(SDValue Chain, SDValue Dst, SDValue Src, 41801f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng SDValue Size, unsigned Align, bool AlwaysInline, 41901f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng const Value *DstSV, uint64_t DstSVOff, 42001f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng const Value *SrcSV, uint64_t SrcSVOff); 4215c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola 422475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getMemmove(SDValue Chain, SDValue Dst, SDValue Src, 42301f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng SDValue Size, unsigned Align, 42401f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng const Value *DstSV, uint64_t DstOSVff, 42501f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng const Value *SrcSV, uint64_t SrcSVOff); 4265c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola 427475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getMemset(SDValue Chain, SDValue Dst, SDValue Src, 42801f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng SDValue Size, unsigned Align, 42901f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng const Value *DstSV, uint64_t DstSVOff); 4305c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola 4317cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// getSetCC - Helper function to make it easier to build SetCC's if you just 432475871a144eb604ddaf37503397ba0941442e5fbDan Gohman /// have an ISD::CondCode instead of an SDValue. 4337cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// 434475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getSetCC(MVT VT, SDValue LHS, SDValue RHS, 43501f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng ISD::CondCode Cond) { 4367cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner return getNode(ISD::SETCC, VT, LHS, RHS, getCondCode(Cond)); 437b43e9c196542acc80c9e4643809661065710848fNate Begeman } 438b43e9c196542acc80c9e4643809661065710848fNate Begeman 439b43e9c196542acc80c9e4643809661065710848fNate Begeman /// getVSetCC - Helper function to make it easier to build VSetCC's nodes 440475871a144eb604ddaf37503397ba0941442e5fbDan Gohman /// if you just have an ISD::CondCode instead of an SDValue. 441b43e9c196542acc80c9e4643809661065710848fNate Begeman /// 442475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getVSetCC(MVT VT, SDValue LHS, SDValue RHS, 44301f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng ISD::CondCode Cond) { 444b43e9c196542acc80c9e4643809661065710848fNate Begeman return getNode(ISD::VSETCC, VT, LHS, RHS, getCondCode(Cond)); 4457cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner } 4469373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 4479373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// getSelectCC - Helper function to make it easier to build SelectCC's if you 448475871a144eb604ddaf37503397ba0941442e5fbDan Gohman /// just have an ISD::CondCode instead of an SDValue. 4499373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// 450475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getSelectCC(SDValue LHS, SDValue RHS, 45101f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng SDValue True, SDValue False, ISD::CondCode Cond) { 4522fa6d3b1fcadbde90eaee0e8e89aebd81630b662Chris Lattner return getNode(ISD::SELECT_CC, True.getValueType(), LHS, RHS, True, False, 4532fa6d3b1fcadbde90eaee0e8e89aebd81630b662Chris Lattner getCondCode(Cond)); 4549373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 4557cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner 456acc398c195a697795bff3245943d104eb19192b9Nate Begeman /// getVAArg - VAArg produces a result and token chain, and takes a pointer 457acc398c195a697795bff3245943d104eb19192b9Nate Begeman /// and a source value as input. 458475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getVAArg(MVT VT, SDValue Chain, SDValue Ptr, 45901f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng SDValue SV); 4607cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 461c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang /// getAtomic - Gets a node for an atomic op, produces result and chain and 462c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang /// takes 3 operands 463475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getAtomic(unsigned Opcode, SDValue Chain, SDValue Ptr, 46401f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng SDValue Cmp, SDValue Swp, const Value* PtrVal, 46501f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng unsigned Alignment=0); 466ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 467c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang /// getAtomic - Gets a node for an atomic op, produces result and chain and 468c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang /// takes 2 operands. 469475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getAtomic(unsigned Opcode, SDValue Chain, SDValue Ptr, 47001f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng SDValue Val, const Value* PtrVal, 47101f63cdb0433fd2e4b76538ee58ee89c26349564Evan Cheng unsigned Alignment = 0); 472ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 473c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang /// getMemIntrinsicNode - Creates a MemIntrinsicNode that may produce a 474c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang /// result and takes a list of operands. 475c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang SDValue getMemIntrinsicNode(unsigned Opcode, 476c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang const MVT *VTs, unsigned NumVTs, 477c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang const SDValue *Ops, unsigned NumOps, 478c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang MVT MemVT, const Value *srcValue, int SVOff, 479c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang unsigned Align = 0, bool Vol = false, 480c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang bool ReadMem = true, bool WriteMem = true); 481c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang 482c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang SDValue getMemIntrinsicNode(unsigned Opcode, SDVTList VTList, 483c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang const SDValue *Ops, unsigned NumOps, 484c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang MVT MemVT, const Value *srcValue, int SVOff, 485c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang unsigned Align = 0, bool Vol = false, 486c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang bool ReadMem = true, bool WriteMem = true); 487c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang 4884bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands /// getMergeValues - Create a MERGE_VALUES node from the given operands. 489aaffa05d0a652dd3eae76a941d02d6b0469fa821Duncan Sands SDValue getMergeValues(const SDValue *Ops, unsigned NumOps); 490f9516208e57364ab1e7d8748af1f59a2ea5fb572Duncan Sands 491095cc29f321382e1f7d295e262a28197f92c5491Dan Gohman /// getCall - Create a CALL node from the given information. 492095cc29f321382e1f7d295e262a28197f92c5491Dan Gohman /// 493095cc29f321382e1f7d295e262a28197f92c5491Dan Gohman SDValue getCall(unsigned CallingConv, bool IsVarArgs, bool IsTailCall, 49486098bd6a63d2cdf0c9be9ef3151bd2728281fd7Dale Johannesen bool isInreg, SDVTList VTs, const SDValue *Operands, 49586098bd6a63d2cdf0c9be9ef3151bd2728281fd7Dale Johannesen unsigned NumOperands); 496095cc29f321382e1f7d295e262a28197f92c5491Dan Gohman 497c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getLoad - Loads are not normal binary operators: their result type is not 498c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// determined by their operands, and they produce a value AND a token chain. 499cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 500475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getLoad(MVT VT, SDValue Chain, SDValue Ptr, 50195c218a83ecf77590b9dc40c636720772d2b5cd7Christopher Lamb const Value *SV, int SVOffset, bool isVolatile=false, 50295c218a83ecf77590b9dc40c636720772d2b5cd7Christopher Lamb unsigned Alignment=0); 503475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getExtLoad(ISD::LoadExtType ExtType, MVT VT, 504475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain, SDValue Ptr, const Value *SV, 50583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands int SVOffset, MVT EVT, bool isVolatile=false, 50695c218a83ecf77590b9dc40c636720772d2b5cd7Christopher Lamb unsigned Alignment=0); 507475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getIndexedLoad(SDValue OrigLoad, SDValue Base, 508475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Offset, ISD::MemIndexedMode AM); 509475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getLoad(ISD::MemIndexedMode AM, ISD::LoadExtType ExtType, 510475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT, SDValue Chain, 511475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr, SDValue Offset, 51283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Value *SV, int SVOffset, MVT EVT, 513e10efce22502d1a1855d25baf1458660f4ba6f33Duncan Sands bool isVolatile=false, unsigned Alignment=0); 5142d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 515ad071e1cd1a4b880019f1b2e827ee81867815f82Evan Cheng /// getStore - Helper function to build ISD::STORE nodes. 516ad071e1cd1a4b880019f1b2e827ee81867815f82Evan Cheng /// 517475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getStore(SDValue Chain, SDValue Val, SDValue Ptr, 51895c218a83ecf77590b9dc40c636720772d2b5cd7Christopher Lamb const Value *SV, int SVOffset, bool isVolatile=false, 51995c218a83ecf77590b9dc40c636720772d2b5cd7Christopher Lamb unsigned Alignment=0); 520475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getTruncStore(SDValue Chain, SDValue Val, SDValue Ptr, 52183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Value *SV, int SVOffset, MVT TVT, 52295c218a83ecf77590b9dc40c636720772d2b5cd7Christopher Lamb bool isVolatile=false, unsigned Alignment=0); 523475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getIndexedStore(SDValue OrigStoe, SDValue Base, 524475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Offset, ISD::MemIndexedMode AM); 525ad071e1cd1a4b880019f1b2e827ee81867815f82Evan Cheng 52669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman // getSrcValue - Construct a node to track a Value* through the backend. 527475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getSrcValue(const Value *v); 52869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 52969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman // getMemOperand - Construct a node to track a memory reference 53069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman // through the backend. 531475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getMemOperand(const MachineMemOperand &MO); 532cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 533b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// UpdateNodeOperands - *Mutate* the specified node in-place to have the 534b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// specified operands. If the resultant node already exists in the DAG, 535b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// this does not modify the specified node, instead it returns the node that 536b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// already exists. If the resultant node does not exist in the DAG, the 537b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// input node is returned. As a degenerate case, if you specify the same 538b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// input operands as the node already has, the input node is returned. 539475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue UpdateNodeOperands(SDValue N, SDValue Op); 540475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue UpdateNodeOperands(SDValue N, SDValue Op1, SDValue Op2); 541475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue UpdateNodeOperands(SDValue N, SDValue Op1, SDValue Op2, 542475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op3); 543475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue UpdateNodeOperands(SDValue N, SDValue Op1, SDValue Op2, 544475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op3, SDValue Op4); 545475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue UpdateNodeOperands(SDValue N, SDValue Op1, SDValue Op2, 546475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op3, SDValue Op4, SDValue Op5); 547475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue UpdateNodeOperands(SDValue N, 548475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 5491b95095857b78e12138c22e76c7936611c51355bChris Lattner 5501b95095857b78e12138c22e76c7936611c51355bChris Lattner /// SelectNodeTo - These are used for target selectors to *mutate* the 5511b95095857b78e12138c22e76c7936611c51355bChris Lattner /// specified node to have the specified return type, Target opcode, and 5521b95095857b78e12138c22e76c7936611c51355bChris Lattner /// operands. Note that target opcodes are stored as 553e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// ~TargetOpcode in the node opcode field. The resultant node is returned. 55483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT); 555475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT, SDValue Op1); 55683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT, 557475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op1, SDValue Op2); 55883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT, 559475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op1, SDValue Op2, SDValue Op3); 56083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT, 561475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 562cd920d9ecfcefff13c3619a32b58399cac2e3630Dan Gohman SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1, MVT VT2); 563cd920d9ecfcefff13c3619a32b58399cac2e3630Dan Gohman SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1, 564475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT2, const SDValue *Ops, unsigned NumOps); 565cd920d9ecfcefff13c3619a32b58399cac2e3630Dan Gohman SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1, 566475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT2, MVT VT3, const SDValue *Ops, unsigned NumOps); 567cd920d9ecfcefff13c3619a32b58399cac2e3630Dan Gohman SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1, 568475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT2, SDValue Op1); 56983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1, 570475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT2, SDValue Op1, SDValue Op2); 57183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1, 572475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT2, SDValue Op1, SDValue Op2, SDValue Op3); 573cd920d9ecfcefff13c3619a32b58399cac2e3630Dan Gohman SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, SDVTList VTs, 574475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 575694481ee01bfe507c6e37de0dc1c64cff455eefdEvan Cheng 576e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// MorphNodeTo - These *mutate* the specified node to have the specified 577e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// return type, opcode, and operands. 578e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT); 579475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT, SDValue Op1); 580e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT, 581475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op1, SDValue Op2); 582e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT, 583475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op1, SDValue Op2, SDValue Op3); 584e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT, 585475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 586e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT1, MVT VT2); 587e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT1, 588475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT2, const SDValue *Ops, unsigned NumOps); 589e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT1, 590475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT2, MVT VT3, const SDValue *Ops, unsigned NumOps); 591e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT1, 592475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT2, SDValue Op1); 593e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT1, 594475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT2, SDValue Op1, SDValue Op2); 595e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT1, 596475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT2, SDValue Op1, SDValue Op2, SDValue Op3); 597e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, SDVTList VTs, 598475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 599753c8f20e45f6e4198c7cf4096ecc8948a029e9cChris Lattner 6006ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// getTargetNode - These are used for target selectors to create a new node 6016ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// with specified return type(s), target opcode, and operands. 6026ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// 6036ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// Note that getTargetNode returns the resultant node. If there is already a 6046ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// node of the specified opcode and operands, it returns that node instead of 6056ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// the current one. 60683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *getTargetNode(unsigned Opcode, MVT VT); 607475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDNode *getTargetNode(unsigned Opcode, MVT VT, SDValue Op1); 608475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDNode *getTargetNode(unsigned Opcode, MVT VT, SDValue Op1, SDValue Op2); 60983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *getTargetNode(unsigned Opcode, MVT VT, 610475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op1, SDValue Op2, SDValue Op3); 61183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *getTargetNode(unsigned Opcode, MVT VT, 612475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 61383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2); 614475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, SDValue Op1); 61583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *getTargetNode(unsigned Opcode, MVT VT1, 616475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT2, SDValue Op1, SDValue Op2); 61783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *getTargetNode(unsigned Opcode, MVT VT1, 618475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT VT2, SDValue Op1, SDValue Op2, SDValue Op3); 61983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, 620475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 62183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3, 622475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op1, SDValue Op2); 62383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3, 624475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op1, SDValue Op2, SDValue Op3); 62583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3, 626475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 62783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3, MVT VT4, 628475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 629f877b735ad4987f26cafcbaf22aa4c2199458b5dDan Gohman SDNode *getTargetNode(unsigned Opcode, const std::vector<MVT> &ResultTys, 630475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 63108b1173971a51eb89d7d6ee0992c39170c86994aEvan Cheng 63208b1173971a51eb89d7d6ee0992c39170c86994aEvan Cheng /// getNodeIfExists - Get the specified node if it's already available, or 63308b1173971a51eb89d7d6ee0992c39170c86994aEvan Cheng /// else return NULL. 63408b1173971a51eb89d7d6ee0992c39170c86994aEvan Cheng SDNode *getNodeIfExists(unsigned Opcode, SDVTList VTs, 635475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 6366542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner 637f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// DAGUpdateListener - Clients of various APIs that cause global effects on 638f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// the DAG can optionally implement this interface. This allows the clients 639f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// to handle the various sorts of updates that happen. 640f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner class DAGUpdateListener { 641f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner public: 642f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner virtual ~DAGUpdateListener(); 643edfcf598faab9ce294712551ecf67093acd1c66eDuncan Sands 644edfcf598faab9ce294712551ecf67093acd1c66eDuncan Sands /// NodeDeleted - The node N that was deleted and, if E is not null, an 645edfcf598faab9ce294712551ecf67093acd1c66eDuncan Sands /// equivalent node E that replaced it. 646edfcf598faab9ce294712551ecf67093acd1c66eDuncan Sands virtual void NodeDeleted(SDNode *N, SDNode *E) = 0; 647edfcf598faab9ce294712551ecf67093acd1c66eDuncan Sands 648edfcf598faab9ce294712551ecf67093acd1c66eDuncan Sands /// NodeUpdated - The node N that was updated. 649f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner virtual void NodeUpdated(SDNode *N) = 0; 650f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner }; 651f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner 652f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// RemoveDeadNode - Remove the specified node from the system. If any of its 653f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// operands then becomes dead, remove them as well. Inform UpdateListener 654f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// for each node deleted. 655f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner void RemoveDeadNode(SDNode *N, DAGUpdateListener *UpdateListener = 0); 656f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner 6570fe9c6e7babb3c0731d9cb864ec498ec4184760fDan Gohman /// RemoveDeadNodes - This method deletes the unreachable nodes in the 6580fe9c6e7babb3c0731d9cb864ec498ec4184760fDan Gohman /// given list, and any nodes that become unreachable as a result. 6590fe9c6e7babb3c0731d9cb864ec498ec4184760fDan Gohman void RemoveDeadNodes(SmallVectorImpl<SDNode *> &DeadNodes, 6600fe9c6e7babb3c0731d9cb864ec498ec4184760fDan Gohman DAGUpdateListener *UpdateListener = 0); 6610fe9c6e7babb3c0731d9cb864ec498ec4184760fDan Gohman 6626542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner /// ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead. 66326005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// This can cause recursive merging of nodes in the DAG. Use the first 66426005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// version if 'From' is known to have a single result, use the second 66526005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// if you have two nodes with identical results, use the third otherwise. 6666542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner /// 667f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// These methods all take an optional UpdateListener, which (if not null) is 668f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// informed about nodes that are deleted and modified due to recursive 669f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// changes in the dag. 670fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// 671475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void ReplaceAllUsesWith(SDValue From, SDValue Op, 672f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner DAGUpdateListener *UpdateListener = 0); 673fde3f3061d665babeb78443119a09876098fc35eChris Lattner void ReplaceAllUsesWith(SDNode *From, SDNode *To, 674f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner DAGUpdateListener *UpdateListener = 0); 675475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void ReplaceAllUsesWith(SDNode *From, const SDValue *To, 676f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner DAGUpdateListener *UpdateListener = 0); 677fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng 67880274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner /// ReplaceAllUsesOfValueWith - Replace any uses of From with To, leaving 679f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// uses of other values produced by From.Val alone. 680475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void ReplaceAllUsesOfValueWith(SDValue From, SDValue To, 681f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner DAGUpdateListener *UpdateListener = 0); 68280274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner 683e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// ReplaceAllUsesOfValuesWith - Like ReplaceAllUsesOfValueWith, but 684e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// for multiple values at once. This correctly handles the case where 685e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// there is an overlap between the From values and the To values. 686475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void ReplaceAllUsesOfValuesWith(const SDValue *From, const SDValue *To, 687e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman unsigned Num, 688e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman DAGUpdateListener *UpdateListener = 0); 689e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman 690f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman /// AssignTopologicalOrder - Topological-sort the AllNodes list and a 691f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman /// assign a unique node id for each node in the DAG based on their 692f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman /// topological order. Returns the number of nodes. 693f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman unsigned AssignTopologicalOrder(); 694e6f35d8a5cc92d776cf460200e2b815e8c301b14Evan Cheng 6958be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman /// RepositionNode - Move node N in the AllNodes list to be immediately 6968be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman /// before the given iterator Position. This may be used to update the 6978be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman /// topological ordering when the list of nodes is modified. 6988be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman void RepositionNode(allnodes_iterator Position, SDNode *N) { 6998be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman AllNodes.insert(Position, AllNodes.remove(N)); 7008be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman } 7018be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman 7021efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng /// isCommutativeBinOp - Returns true if the opcode is a commutative binary 7031efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng /// operation. 7041efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng static bool isCommutativeBinOp(unsigned Opcode) { 7054ae9e0c5301126d7f2d4b2975eb86ed21f7b574dChris Lattner // FIXME: This should get its info from the td file, so that we can include 7064ae9e0c5301126d7f2d4b2975eb86ed21f7b574dChris Lattner // target info. 7071efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng switch (Opcode) { 7081efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::ADD: 7091efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::MUL: 7101efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::MULHU: 7111efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::MULHS: 712b6c7437568f0472548ede2710458f52cfad4532eDan Gohman case ISD::SMUL_LOHI: 713b6c7437568f0472548ede2710458f52cfad4532eDan Gohman case ISD::UMUL_LOHI: 7141efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::FADD: 7151efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::FMUL: 7161efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::AND: 7171efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::OR: 7181efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::XOR: 7191efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::ADDC: 7201efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::ADDE: return true; 7211efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng default: return false; 7221efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng } 7231efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng } 7241efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng 725cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner void dump() const; 726d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner 72737ce9df0da6cddc3b8bfef9b63d33d058a0f2f15Chris Lattner /// CreateStackTemporary - Create a stack temporary, suitable for holding the 728364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang /// specified value type. If minAlign is specified, the slot size will have 729364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang /// at least that alignment. 730475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CreateStackTemporary(MVT VT, unsigned minAlign = 1); 731364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang 732f3cbca279db891403659208a99f8e1cceb8c9ea6Bill Wendling /// FoldConstantArithmetic - 733f3cbca279db891403659208a99f8e1cceb8c9ea6Bill Wendling SDValue FoldConstantArithmetic(unsigned Opcode, 734f3cbca279db891403659208a99f8e1cceb8c9ea6Bill Wendling MVT VT, 735f3cbca279db891403659208a99f8e1cceb8c9ea6Bill Wendling ConstantSDNode *Cst1, 736f3cbca279db891403659208a99f8e1cceb8c9ea6Bill Wendling ConstantSDNode *Cst2); 737f3cbca279db891403659208a99f8e1cceb8c9ea6Bill Wendling 73851dabfb28375be7bc5848806ae31cd068b6133f8Chris Lattner /// FoldSetCC - Constant fold a setcc to true or false. 739475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue FoldSetCC(MVT VT, SDValue N1, 740f3cbca279db891403659208a99f8e1cceb8c9ea6Bill Wendling SDValue N2, ISD::CondCode Cond); 74151dabfb28375be7bc5848806ae31cd068b6133f8Chris Lattner 7422e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman /// SignBitIsZero - Return true if the sign bit of Op is known to be zero. We 7432e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman /// use this predicate to simplify operations downstream. 744475871a144eb604ddaf37503397ba0941442e5fbDan Gohman bool SignBitIsZero(SDValue Op, unsigned Depth = 0) const; 7452e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman 746ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// MaskedValueIsZero - Return true if 'Op & Mask' is known to be zero. We 747ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// use this predicate to simplify operations downstream. Op and Mask are 748ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// known to be the same type. 749475871a144eb604ddaf37503397ba0941442e5fbDan Gohman bool MaskedValueIsZero(SDValue Op, const APInt &Mask, unsigned Depth = 0) 750ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman const; 751ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman 752ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// ComputeMaskedBits - Determine which of the bits specified in Mask are 753ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// known to be either zero or one and return them in the KnownZero/KnownOne 754ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// bitsets. This code only analyzes bits in Mask, in order to short-circuit 755ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// processing. Targets can implement the computeMaskedBitsForTargetNode 756ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// method in the TargetLowering class to allow target nodes to be understood. 757475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void ComputeMaskedBits(SDValue Op, const APInt &Mask, APInt &KnownZero, 758fd29e0eb060ea8b4d490860329234d2ae5f5952eDan Gohman APInt &KnownOne, unsigned Depth = 0) const; 759fd29e0eb060ea8b4d490860329234d2ae5f5952eDan Gohman 760ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// ComputeNumSignBits - Return the number of times the sign bit of the 761ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// register is replicated into the other bits. We know that at least 1 bit 762ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// is always equal to the sign bit (itself), but other cases can give us 763ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// information. For example, immediately after an "SRA X, 2", we know that 764ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// the top 3 bits are all equal to each other, so we return 3. Targets can 765ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// implement the ComputeNumSignBitsForTarget method in the TargetLowering 766ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// class to allow target nodes to be understood. 767475871a144eb604ddaf37503397ba0941442e5fbDan Gohman unsigned ComputeNumSignBits(SDValue Op, unsigned Depth = 0) const; 768a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng 769475871a144eb604ddaf37503397ba0941442e5fbDan Gohman /// isVerifiedDebugInfoDesc - Returns true if the specified SDValue has 770a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng /// been verified as a debug information descriptor. 771475871a144eb604ddaf37503397ba0941442e5fbDan Gohman bool isVerifiedDebugInfoDesc(SDValue Op) const; 77277f0b7a50a08614b5ffd58f1864b68a9a30d0cb0Evan Cheng 77377f0b7a50a08614b5ffd58f1864b68a9a30d0cb0Evan Cheng /// getShuffleScalarElt - Returns the scalar element that will make up the ith 77477f0b7a50a08614b5ffd58f1864b68a9a30d0cb0Evan Cheng /// element of the result of the vector shuffle. 775475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getShuffleScalarElt(const SDNode *N, unsigned Idx); 776ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman 777d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattnerprivate: 778095cc29f321382e1f7d295e262a28197f92c5491Dan Gohman bool RemoveNodeFromCSEMaps(SDNode *N); 7796542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner SDNode *AddNonLeafNodeToCSEMaps(SDNode *N); 780475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDNode *FindModifiedNodeSlot(SDNode *N, SDValue Op, void *&InsertPos); 781475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDNode *FindModifiedNodeSlot(SDNode *N, SDValue Op1, SDValue Op2, 782a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner void *&InsertPos); 783475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDNode *FindModifiedNodeSlot(SDNode *N, const SDValue *Ops, unsigned NumOps, 784a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner void *&InsertPos); 785b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner 786fde3f3061d665babeb78443119a09876098fc35eChris Lattner void DeleteNodeNotInCSEMaps(SDNode *N); 7879c6e70eca9a49c146b26621cbcbb9464ceeac024Dan Gohman 7889c6e70eca9a49c146b26621cbcbb9464ceeac024Dan Gohman unsigned getMVTAlignment(MVT MemoryVT) const; 789f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman 790f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman void allnodes_clear(); 7917cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner 792109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner // List of non-single value types. 793e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman std::vector<SDVTList> VTList; 794109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 7951cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // Maps to auto-CSE operations. 7967cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner std::vector<CondCodeSDNode*> CondCodeNodes; 7971cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 79815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner std::vector<SDNode*> ValueTypeNodes; 7998e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands std::map<MVT, SDNode*, MVT::compareRawBits> ExtendedValueTypeNodes; 800056292fd738924f3f7703725d8f630983794b5a5Bill Wendling StringMap<SDNode*> ExternalSymbols; 801056292fd738924f3f7703725d8f630983794b5a5Bill Wendling StringMap<SDNode*> TargetExternalSymbols; 802cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner}; 803cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 8041080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnertemplate <> struct GraphTraits<SelectionDAG*> : public GraphTraits<SDNode*> { 8051080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SelectionDAG::allnodes_iterator nodes_iterator; 8061080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_begin(SelectionDAG *G) { 8071080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_begin(); 8081080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 8091080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_end(SelectionDAG *G) { 8101080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_end(); 8111080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 8121080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 8131080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 814b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner} // end namespace llvm 815cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 816cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#endif 817