SelectionDAG.h revision 001d3dc976d7cda8a3dd8c7fd4020b0b96033f4e
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" 204b84086e89d86fb16f562166d9fea8df37db6be7Dan Gohman#include "llvm/ADT/StringMap.h" 21583bd47f777fe3eb8305872fa0eadab31e833dffJim Laskey#include "llvm/CodeGen/SelectionDAGNodes.h" 22c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman#include "llvm/Support/RecyclingAllocator.h" 2398a366d547772010e94609e4584489b3e5ce0043Bill Wendling#include "llvm/Target/TargetMachine.h" 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; 32b4e6a5df5dada0cd919cc6e2717eb3118db9cc45Bill Wendlingclass MachineConstantPoolValue; 33b4e6a5df5dada0cd919cc6e2717eb3118db9cc45Bill Wendlingclass MachineFunction; 3431441b7e95e0840e1ae144e5db6f791d6a36bc60Evan Chengclass MDNode; 35b4e6a5df5dada0cd919cc6e2717eb3118db9cc45Bill Wendlingclass SDNodeOrdering; 36bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesenclass SDDbgValue; 37b4e6a5df5dada0cd919cc6e2717eb3118db9cc45Bill Wendlingclass TargetLowering; 38ff7a562751604a9fe13efc75bd59622244b54d35Dan Gohmanclass TargetSelectionDAGInfo; 39fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman 408e4018e2de52c534405d7155c7009d0b35afb861Cedric Venettemplate<> struct ilist_traits<SDNode> : public ilist_default_traits<SDNode> { 418e4018e2de52c534405d7155c7009d0b35afb861Cedric Venetprivate: 427309be6735666143bd9835b275dc8501617a2591Gabor Greif mutable ilist_half_node<SDNode> Sentinel; 43fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohmanpublic: 44fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman SDNode *createSentinel() const { 45c7f6b8c5d40e17bf43fd3a1549d7d89c9da735e1Gabor Greif return static_cast<SDNode*>(&Sentinel); 46fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman } 47fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman static void destroySentinel(SDNode *) {} 48fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman 49c23b8719ef9d6b1220e854b37d40e9e1c48a82bcGabor Greif SDNode *provideInitialHead() const { return createSentinel(); } 50c23b8719ef9d6b1220e854b37d40e9e1c48a82bcGabor Greif SDNode *ensureHead(SDNode*) const { return createSentinel(); } 51f3841fcbd587c31aa9842b3f33bd57de40c9f443Gabor Greif static void noteHead(SDNode*, SDNode*) {} 52c23b8719ef9d6b1220e854b37d40e9e1c48a82bcGabor Greif 53fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman static void deleteNode(SDNode *) { 5450bee42b54cd9aec5f49566307df2b0cf23afcf6Craig Topper llvm_unreachable("ilist_traits<SDNode> shouldn't see a deleteNode call!"); 55fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman } 56fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohmanprivate: 57fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman static void createNode(const SDNode &); 58fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman}; 59c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 60bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen/// SDDbgInfo - Keeps track of dbg_value information through SDISel. We do 61bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen/// not build SDNodes for these so as not to perturb the generated code; 62bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng/// instead the info is kept off to the side in this structure. Each SDNode may 63bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng/// have one or more associated dbg_value entries. This information is kept in 64bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng/// DbgValMap. 65fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen/// Byval parameters are handled separately because they don't use alloca's, 66fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen/// which busts the normal mechanism. There is good reason for handling all 67fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen/// parameters separately: they may not have code generated for them, they 68fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen/// should always go at the beginning of the function regardless of other code 69fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen/// motion, and debug info for them is potentially useful even if the parameter 70fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen/// is unused. Right now only byval parameters are handled separately. 71bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesenclass SDDbgInfo { 72bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng SmallVector<SDDbgValue*, 32> DbgValues; 73fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen SmallVector<SDDbgValue*, 32> ByvalParmDbgValues; 74d4c6c3a7c3140ce487a805138b6f53f82ff6b783Devang Patel DenseMap<const SDNode*, SmallVector<SDDbgValue*, 2> > DbgValMap; 75bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen 76001d3dc976d7cda8a3dd8c7fd4020b0b96033f4eCraig Topper void operator=(const SDDbgInfo&) LLVM_DELETED_FUNCTION; 77001d3dc976d7cda8a3dd8c7fd4020b0b96033f4eCraig Topper SDDbgInfo(const SDDbgInfo&) LLVM_DELETED_FUNCTION; 78bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesenpublic: 79bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen SDDbgInfo() {} 80bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen 81fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen void add(SDDbgValue *V, const SDNode *Node, bool isParameter) { 82fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen if (isParameter) { 83fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen ByvalParmDbgValues.push_back(V); 84fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen } else DbgValues.push_back(V); 85bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng if (Node) 86d4c6c3a7c3140ce487a805138b6f53f82ff6b783Devang Patel DbgValMap[Node].push_back(V); 87bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen } 88bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng 89bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen void clear() { 90d4c6c3a7c3140ce487a805138b6f53f82ff6b783Devang Patel DbgValMap.clear(); 91bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng DbgValues.clear(); 92fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen ByvalParmDbgValues.clear(); 93bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng } 94bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng 95bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng bool empty() const { 96fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen return DbgValues.empty() && ByvalParmDbgValues.empty(); 97bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen } 98bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng 9922a54c1cd711afccd4558374918d12a939e1cca5Benjamin Kramer ArrayRef<SDDbgValue*> getSDDbgValues(const SDNode *Node) { 10022a54c1cd711afccd4558374918d12a939e1cca5Benjamin Kramer DenseMap<const SDNode*, SmallVector<SDDbgValue*, 2> >::iterator I = 10122a54c1cd711afccd4558374918d12a939e1cca5Benjamin Kramer DbgValMap.find(Node); 10222a54c1cd711afccd4558374918d12a939e1cca5Benjamin Kramer if (I != DbgValMap.end()) 10322a54c1cd711afccd4558374918d12a939e1cca5Benjamin Kramer return I->second; 10422a54c1cd711afccd4558374918d12a939e1cca5Benjamin Kramer return ArrayRef<SDDbgValue*>(); 105bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen } 106bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng 107bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng typedef SmallVector<SDDbgValue*,32>::iterator DbgIterator; 108bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng DbgIterator DbgBegin() { return DbgValues.begin(); } 109bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng DbgIterator DbgEnd() { return DbgValues.end(); } 110fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen DbgIterator ByvalParmDbgBegin() { return ByvalParmDbgValues.begin(); } 111fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen DbgIterator ByvalParmDbgEnd() { return ByvalParmDbgValues.end(); } 112bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen}; 113bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen 11425cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sandsenum CombineLevel { 115501852423d34578bc41a745681783b04124dd0dbEli Friedman BeforeLegalizeTypes, 116501852423d34578bc41a745681783b04124dd0dbEli Friedman AfterLegalizeTypes, 117501852423d34578bc41a745681783b04124dd0dbEli Friedman AfterLegalizeVectorOps, 118501852423d34578bc41a745681783b04124dd0dbEli Friedman AfterLegalizeDAG 11925cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands}; 12025cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands 121cf495bc2e505e52ad018da55bed11c7b8bc97db5David Greeneclass SelectionDAG; 122cf495bc2e505e52ad018da55bed11c7b8bc97db5David Greenevoid checkForCycles(const SDNode *N); 123cf495bc2e505e52ad018da55bed11c7b8bc97db5David Greenevoid checkForCycles(const SelectionDAG *DAG); 124cf495bc2e505e52ad018da55bed11c7b8bc97db5David Greene 125c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// SelectionDAG class - This is used to represent a portion of an LLVM function 126c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// in a low-level Data Dependence DAG representation suitable for instruction 127c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection. This DAG is constructed as the first step of instruction 128c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection in order to allow implementation of machine specific optimizations 129c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// and code simplifications. 130c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// 131c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// The representation used by the SelectionDAG is a target-independent 132c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// representation, which has some similarities to the GCC RTL representation, 133c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// but is significantly more simple, powerful, and is a graph form instead of a 134c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// linear form. 135cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner/// 136cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerclass SelectionDAG { 13750d2b1ac029d63500ea9b9347561b1454fa6ed6aDan Gohman const TargetMachine &TM; 138d858e90f039f5fcdc2fa93035e911a5a9505cc50Dan Gohman const TargetLowering &TLI; 139ff7a562751604a9fe13efc75bd59622244b54d35Dan Gohman const TargetSelectionDAGInfo &TSI; 1407c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman MachineFunction *MF; 141512063dd0f91a76b9dd904dfff72a52b4d09e89fChris Lattner LLVMContext *Context; 1420508d047fefef36d4f943ee13c82c18cf3a943abDevang Patel CodeGenOpt::Level OptLevel; 143cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 144f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// EntryNode - The starting token. 145f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman SDNode EntryNode; 146f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman 147f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// Root - The root of the entire DAG. 148f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman SDValue Root; 149cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 150213a16c637926bfc38ba373d3aba6778e181e3ecChris Lattner /// AllNodes - A linked list of nodes in the current DAG. 151fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman ilist<SDNode> AllNodes; 152fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman 153f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// NodeAllocatorType - The AllocatorType for allocating SDNodes. We use 154f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// pool allocation with recycling. 155f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman typedef RecyclingAllocator<BumpPtrAllocator, SDNode, sizeof(LargestSDNode), 156f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman AlignOf<MostAlignedSDNode>::Alignment> 157f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman NodeAllocatorType; 158f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman 159f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// NodeAllocator - Pool allocation for nodes. 160f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman NodeAllocatorType NodeAllocator; 161691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth 162213a16c637926bfc38ba373d3aba6778e181e3ecChris Lattner /// CSEMap - This structure is used to memoize nodes, automatically performing 163d23b33435ae722ff5aa5ab97135a4f31041959e2Bob Wilson /// CSE with existing nodes when a duplicate is requested. 164583bd47f777fe3eb8305872fa0eadab31e833dffJim Laskey FoldingSet<SDNode> CSEMap; 165213a16c637926bfc38ba373d3aba6778e181e3ecChris Lattner 166f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// OperandAllocator - Pool allocation for machine-opcode SDNode operands. 167f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman BumpPtrAllocator OperandAllocator; 168f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman 169e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// Allocator - Pool allocation for misc. objects that are created once per 170e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// SelectionDAG. 171e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman BumpPtrAllocator Allocator; 172e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman 173b4e6a5df5dada0cd919cc6e2717eb3118db9cc45Bill Wendling /// SDNodeOrdering - The ordering of the SDNodes. It roughly corresponds to 174b4e6a5df5dada0cd919cc6e2717eb3118db9cc45Bill Wendling /// the ordering of the original LLVM instructions. 175b4e6a5df5dada0cd919cc6e2717eb3118db9cc45Bill Wendling SDNodeOrdering *Ordering; 176819309efec6f11ba752bd7cbfe186495745f020bDaniel Dunbar 177bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen /// DbgInfo - Tracks dbg_value information through SDISel. 178bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen SDDbgInfo *DbgInfo; 179bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen 180bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesenpublic: 181bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen /// DAGUpdateListener - Clients of various APIs that cause global effects on 182bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen /// the DAG can optionally implement this interface. This allows the clients 183bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen /// to handle the various sorts of updates that happen. 184bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen /// 185bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen /// A DAGUpdateListener automatically registers itself with DAG when it is 186bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen /// constructed, and removes itself when destroyed in RAII fashion. 187bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen struct DAGUpdateListener { 188bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen DAGUpdateListener *const Next; 189bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen SelectionDAG &DAG; 190bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen 191bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen explicit DAGUpdateListener(SelectionDAG &D) 192bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen : Next(D.UpdateListeners), DAG(D) { 193bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen DAG.UpdateListeners = this; 194bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen } 195bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen 196bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen virtual ~DAGUpdateListener() { 197bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen assert(DAG.UpdateListeners == this && 198bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen "DAGUpdateListeners must be destroyed in LIFO order"); 199bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen DAG.UpdateListeners = Next; 200bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen } 201bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen 202bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen /// NodeDeleted - The node N that was deleted and, if E is not null, an 203bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen /// equivalent node E that replaced it. 204bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen virtual void NodeDeleted(SDNode *N, SDNode *E); 205bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen 206bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen /// NodeUpdated - The node N that was updated. 207bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen virtual void NodeUpdated(SDNode *N); 208bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen }; 209bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen 210bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesenprivate: 211bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen /// DAGUpdateListener is a friend so it can manipulate the listener stack. 212bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen friend struct DAGUpdateListener; 213bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen 214bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen /// UpdateListeners - Linked list of registered DAGUpdateListener instances. 215bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen /// This stack is maintained by DAGUpdateListener RAII. 216bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen DAGUpdateListener *UpdateListeners; 217bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen 218c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene /// setGraphColorHelper - Implementation of setSubgraphColor. 219c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene /// Return whether we had to truncate the search. 220c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene /// 221c23b8719ef9d6b1220e854b37d40e9e1c48a82bcGabor Greif bool setSubgraphColorHelper(SDNode *N, const char *Color, 222c23b8719ef9d6b1220e854b37d40e9e1c48a82bcGabor Greif DenseSet<SDNode *> &visited, 223c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene int level, bool &printed); 224c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene 225001d3dc976d7cda8a3dd8c7fd4020b0b96033f4eCraig Topper void operator=(const SelectionDAG&) LLVM_DELETED_FUNCTION; 226001d3dc976d7cda8a3dd8c7fd4020b0b96033f4eCraig Topper SelectionDAG(const SelectionDAG&) LLVM_DELETED_FUNCTION; 227819309efec6f11ba752bd7cbfe186495745f020bDaniel Dunbar 228cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerpublic: 2290508d047fefef36d4f943ee13c82c18cf3a943abDevang Patel explicit SelectionDAG(const TargetMachine &TM, llvm::CodeGenOpt::Level); 230cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner ~SelectionDAG(); 231cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 2327c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman /// init - Prepare this SelectionDAG to process code in the given 2337c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman /// MachineFunction. 2347c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman /// 235de6e783b2490447866b592cd39855e6f4d25efffChris Lattner void init(MachineFunction &mf); 2367c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman 2377c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman /// clear - Clear state and free memory necessary to make this 238f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// SelectionDAG ready to process a new block. 239f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman /// 2407c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman void clear(); 241f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman 2427c3234c6be0dc0bdf4b5d6f848cd728a77f349d7Dan Gohman MachineFunction &getMachineFunction() const { return *MF; } 24350d2b1ac029d63500ea9b9347561b1454fa6ed6aDan Gohman const TargetMachine &getTarget() const { return TM; } 244d858e90f039f5fcdc2fa93035e911a5a9505cc50Dan Gohman const TargetLowering &getTargetLoweringInfo() const { return TLI; } 245ff7a562751604a9fe13efc75bd59622244b54d35Dan Gohman const TargetSelectionDAGInfo &getSelectionDAGInfo() const { return TSI; } 246d1474d09cbe5fdeec8ba0d6c6b52f316f3422532Owen Anderson LLVMContext *getContext() const {return Context; } 247cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 248ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// viewGraph - Pop up a GraphViz/gv window with the DAG rendered using 'dot'. 2491080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner /// 250462dc7f4960e5074ddf4769ec8b2ef1ba7a4d2c8Dan Gohman void viewGraph(const std::string &Title); 2510b12aef49087b57d276ed760a83525d1e2602144Dan Gohman void viewGraph(); 252fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 253ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey#ifndef NDEBUG 254ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey std::map<const SDNode *, std::string> NodeGraphAttrs; 255ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey#endif 2561080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 257ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// clearGraphAttrs - Clear all previously defined node graph attributes. 258ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// Intended to be used from a debugging tool (eg. gdb). 259ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey void clearGraphAttrs(); 260fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 261ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// setGraphAttrs - Set graph attributes for a node. (eg. "color=red".) 262ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// 263ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey void setGraphAttrs(const SDNode *N, const char *Attrs); 264fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 265ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// getGraphAttrs - Get graph attributes for a node. (eg. "color=red".) 266ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// Used from getNodeAttributes. 267ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey const std::string getGraphAttrs(const SDNode *N) const; 268fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 269ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// setGraphColor - Convenience for setting node color attribute. 270ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey /// 271ec20402c90b605afeedbcf0e3aabe6f8054f23ddJim Laskey void setGraphColor(const SDNode *N, const char *Color); 2721080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 273c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene /// setGraphColor - Convenience for setting subgraph color attribute. 274c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene /// 275c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene void setSubgraphColor(SDNode *N, const char *Color); 276c5e7e8d87d4a3b10edd5ac93ba1f3cdb4d1b449aDavid Greene 277fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman typedef ilist<SDNode>::const_iterator allnodes_const_iterator; 278b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_const_iterator allnodes_begin() const { return AllNodes.begin(); } 279b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_const_iterator allnodes_end() const { return AllNodes.end(); } 280fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman typedef ilist<SDNode>::iterator allnodes_iterator; 281b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_iterator allnodes_begin() { return AllNodes.begin(); } 282b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_iterator allnodes_end() { return AllNodes.end(); } 283fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman ilist<SDNode>::size_type allnodes_size() const { 2840e5f1306b059b62d7725f324e087efbc8e7a782dDan Gohman return AllNodes.size(); 2850e5f1306b059b62d7725f324e087efbc8e7a782dDan Gohman } 286fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 287c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getRoot - Return the root tag of the SelectionDAG. 288cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 289475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue &getRoot() const { return Root; } 290cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 291c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getEntryNode - Return the token chain corresponding to the entry of the 292c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// function. 293f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman SDValue getEntryNode() const { 294f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman return SDValue(const_cast<SDNode *>(&EntryNode), 0); 295f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman } 296cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 297c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// setRoot - Set the current root tag of the SelectionDAG. 298cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 299475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue &setRoot(SDValue N) { 300825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson assert((!N.getNode() || N.getValueType() == MVT::Other) && 301acaf09dbe4a6781163857db1321bbd5795e7d410Dan Gohman "DAG root value is not a chain!"); 302cf495bc2e505e52ad018da55bed11c7b8bc97db5David Greene if (N.getNode()) 303cf495bc2e505e52ad018da55bed11c7b8bc97db5David Greene checkForCycles(N.getNode()); 304cf495bc2e505e52ad018da55bed11c7b8bc97db5David Greene Root = N; 305cf495bc2e505e52ad018da55bed11c7b8bc97db5David Greene if (N.getNode()) 306cf495bc2e505e52ad018da55bed11c7b8bc97db5David Greene checkForCycles(this); 307cf495bc2e505e52ad018da55bed11c7b8bc97db5David Greene return Root; 308acaf09dbe4a6781163857db1321bbd5795e7d410Dan Gohman } 309cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 3101d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// Combine - This iterates over the nodes in the SelectionDAG, folding 31125cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands /// certain types of nodes together, or eliminating superfluous nodes. The 31225cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands /// Level argument controls whether Combine is allowed to produce nodes and 31325cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands /// types that are illegal on the target. 31498a366d547772010e94609e4584489b3e5ce0043Bill Wendling void Combine(CombineLevel Level, AliasAnalysis &AA, 31598a366d547772010e94609e4584489b3e5ce0043Bill Wendling CodeGenOpt::Level OptLevel); 31625cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands 31701d029b82cb08367d81aa10cdc94d05360466649Chris Lattner /// LegalizeTypes - This transforms the SelectionDAG into a SelectionDAG that 31825cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands /// only uses types natively supported by the target. Returns "true" if it 31925cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands /// made any changes. 32001d029b82cb08367d81aa10cdc94d05360466649Chris Lattner /// 32101d029b82cb08367d81aa10cdc94d05360466649Chris Lattner /// Note that this is an involved process that may invalidate pointers into 32201d029b82cb08367d81aa10cdc94d05360466649Chris Lattner /// the graph. 32325cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands bool LegalizeTypes(); 32425cf2275ff7de3de3bc0e508abaf457413d74725Duncan Sands 325c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Legalize - This transforms the SelectionDAG into a SelectionDAG that is 326c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// compatible with the target instruction selector, as indicated by the 327c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// TargetLowering object. 328cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 329c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Note that this is an involved process that may invalidate pointers into 330c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// the graph. 331975716af1b9a09274df6c2d92683449015bd8564Dan Gohman void Legalize(); 332c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 3335c22c8074404797f1313b1334757254fb5c6487aEli Friedman /// LegalizeVectors - This transforms the SelectionDAG into a SelectionDAG 3345c22c8074404797f1313b1334757254fb5c6487aEli Friedman /// that only uses vector math operations supported by the target. This is 3355c22c8074404797f1313b1334757254fb5c6487aEli Friedman /// necessary as a separate step from Legalize because unrolling a vector 3365c22c8074404797f1313b1334757254fb5c6487aEli Friedman /// operation can introduce illegal types, which requires running 3375c22c8074404797f1313b1334757254fb5c6487aEli Friedman /// LegalizeTypes again. 3385c22c8074404797f1313b1334757254fb5c6487aEli Friedman /// 3395c22c8074404797f1313b1334757254fb5c6487aEli Friedman /// This returns true if it made any changes; in that case, LegalizeTypes 3405c22c8074404797f1313b1334757254fb5c6487aEli Friedman /// is called again before Legalize. 3415c22c8074404797f1313b1334757254fb5c6487aEli Friedman /// 3425c22c8074404797f1313b1334757254fb5c6487aEli Friedman /// Note that this is an involved process that may invalidate pointers into 3435c22c8074404797f1313b1334757254fb5c6487aEli Friedman /// the graph. 3445c22c8074404797f1313b1334757254fb5c6487aEli Friedman bool LegalizeVectors(); 3455c22c8074404797f1313b1334757254fb5c6487aEli Friedman 346d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// RemoveDeadNodes - This method deletes all unreachable nodes in the 347190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner /// SelectionDAG. 348190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner void RemoveDeadNodes(); 349130a6471b90f66e99b1f9f42877fdf611c330ac6Evan Cheng 350130a6471b90f66e99b1f9f42877fdf611c330ac6Evan Cheng /// DeleteNode - Remove the specified node from the system. This node must 351130a6471b90f66e99b1f9f42877fdf611c330ac6Evan Cheng /// have no referrers. 352130a6471b90f66e99b1f9f42877fdf611c330ac6Evan Cheng void DeleteNode(SDNode *N); 353130a6471b90f66e99b1f9f42877fdf611c330ac6Evan Cheng 35470046e920fa37989a041af663ada2b2b646e258fChris Lattner /// getVTList - Return an SDVTList that represents the list of values 35570046e920fa37989a041af663ada2b2b646e258fChris Lattner /// specified. 356e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDVTList getVTList(EVT VT); 357e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDVTList getVTList(EVT VT1, EVT VT2); 358e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDVTList getVTList(EVT VT1, EVT VT2, EVT VT3); 359e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDVTList getVTList(EVT VT1, EVT VT2, EVT VT3, EVT VT4); 360e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDVTList getVTList(const EVT *VTs, unsigned NumVTs); 361fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 3621b1a49714ef26225a42199cf2930529f31868322Chris Lattner //===--------------------------------------------------------------------===// 36370046e920fa37989a041af663ada2b2b646e258fChris Lattner // Node creation methods. 36470046e920fa37989a041af663ada2b2b646e258fChris Lattner // 365e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getConstant(uint64_t Val, EVT VT, bool isTarget = false); 366e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getConstant(const APInt &Val, EVT VT, bool isTarget = false); 367e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getConstant(const ConstantInt &Val, EVT VT, bool isTarget = false); 368475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getIntPtrConstant(uint64_t Val, bool isTarget = false); 369e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getTargetConstant(uint64_t Val, EVT VT) { 370cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner return getConstant(Val, VT, true); 371cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner } 372e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getTargetConstant(const APInt &Val, EVT VT) { 3736394b099e836f56a937cdcc7332c9487b504ca68Dan Gohman return getConstant(Val, VT, true); 3746394b099e836f56a937cdcc7332c9487b504ca68Dan Gohman } 375e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getTargetConstant(const ConstantInt &Val, EVT VT) { 3764fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman return getConstant(Val, VT, true); 3774fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman } 3780a406ae0d940d92c51ee145b48ff7a483a366849Dale Johannesen // The forms below that take a double should only be used for simple 3790a406ae0d940d92c51ee145b48ff7a483a366849Dale Johannesen // constants that can be exactly represented in VT. No checks are made. 380e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getConstantFP(double Val, EVT VT, bool isTarget = false); 381e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getConstantFP(const APFloat& Val, EVT VT, bool isTarget = false); 382e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getConstantFP(const ConstantFP &CF, EVT VT, bool isTarget = false); 383e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getTargetConstantFP(double Val, EVT VT) { 384c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner return getConstantFP(Val, VT, true); 385c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner } 386e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getTargetConstantFP(const APFloat& Val, EVT VT) { 387f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen return getConstantFP(Val, VT, true); 388f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen } 389e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getTargetConstantFP(const ConstantFP &Val, EVT VT) { 3904fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman return getConstantFP(Val, VT, true); 3914fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman } 3920d881dabc1a4e1aefad6dd38de166d8358285638Devang Patel SDValue getGlobalAddress(const GlobalValue *GV, DebugLoc DL, EVT VT, 3932a4ed82ce2ba4a02f2a02eb4ed8ce5186f3f93daChris Lattner int64_t offset = 0, bool isTargetGA = false, 3942a4ed82ce2ba4a02f2a02eb4ed8ce5186f3f93daChris Lattner unsigned char TargetFlags = 0); 3950d881dabc1a4e1aefad6dd38de166d8358285638Devang Patel SDValue getTargetGlobalAddress(const GlobalValue *GV, DebugLoc DL, EVT VT, 3962a4ed82ce2ba4a02f2a02eb4ed8ce5186f3f93daChris Lattner int64_t offset = 0, 3972a4ed82ce2ba4a02f2a02eb4ed8ce5186f3f93daChris Lattner unsigned char TargetFlags = 0) { 3980d881dabc1a4e1aefad6dd38de166d8358285638Devang Patel return getGlobalAddress(GV, DL, VT, offset, true, TargetFlags); 399cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner } 400e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getFrameIndex(int FI, EVT VT, bool isTarget = false); 401e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getTargetFrameIndex(int FI, EVT VT) { 402c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner return getFrameIndex(FI, VT, true); 403c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner } 404e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getJumpTable(int JTI, EVT VT, bool isTarget = false, 405f5a5546f435a261c93078defb41ed18d9cafd7d3Chris Lattner unsigned char TargetFlags = 0); 406e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getTargetJumpTable(int JTI, EVT VT, unsigned char TargetFlags = 0) { 407f5a5546f435a261c93078defb41ed18d9cafd7d3Chris Lattner return getJumpTable(JTI, VT, true, TargetFlags); 408c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner } 40946510a73e977273ec67747eb34cbdb43f815e451Dan Gohman SDValue getConstantPool(const Constant *C, EVT VT, 410f5a5546f435a261c93078defb41ed18d9cafd7d3Chris Lattner unsigned Align = 0, int Offs = 0, bool isT=false, 411f5a5546f435a261c93078defb41ed18d9cafd7d3Chris Lattner unsigned char TargetFlags = 0); 41246510a73e977273ec67747eb34cbdb43f815e451Dan Gohman SDValue getTargetConstantPool(const Constant *C, EVT VT, 413f5a5546f435a261c93078defb41ed18d9cafd7d3Chris Lattner unsigned Align = 0, int Offset = 0, 414f5a5546f435a261c93078defb41ed18d9cafd7d3Chris Lattner unsigned char TargetFlags = 0) { 415f5a5546f435a261c93078defb41ed18d9cafd7d3Chris Lattner return getConstantPool(C, VT, Align, Offset, true, TargetFlags); 416c9f8f416800784ca6453222b307bc44ad24739b0Chris Lattner } 417e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getConstantPool(MachineConstantPoolValue *C, EVT VT, 418f5a5546f435a261c93078defb41ed18d9cafd7d3Chris Lattner unsigned Align = 0, int Offs = 0, bool isT=false, 419f5a5546f435a261c93078defb41ed18d9cafd7d3Chris Lattner unsigned char TargetFlags = 0); 420475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getTargetConstantPool(MachineConstantPoolValue *C, 421e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT, unsigned Align = 0, 422f5a5546f435a261c93078defb41ed18d9cafd7d3Chris Lattner int Offset = 0, unsigned char TargetFlags=0) { 423f5a5546f435a261c93078defb41ed18d9cafd7d3Chris Lattner return getConstantPool(C, VT, Align, Offset, true, TargetFlags); 424d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng } 42574500bdba3eae36a1a8a17d8bad0b971b9c212ecJakob Stoklund Olesen SDValue getTargetIndex(int Index, EVT VT, int64_t Offset = 0, 42674500bdba3eae36a1a8a17d8bad0b971b9c212ecJakob Stoklund Olesen unsigned char TargetFlags = 0); 4278ad9b43e690e8773cf836b30e8da26bc71e18844Dale Johannesen // When generating a branch to a BB, we don't in general know enough 4288ad9b43e690e8773cf836b30e8da26bc71e18844Dale Johannesen // to provide debug info for the BB at that time, so keep this one around. 429475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getBasicBlock(MachineBasicBlock *MBB); 430e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen SDValue getBasicBlock(MachineBasicBlock *MBB, DebugLoc dl); 431e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getExternalSymbol(const char *Sym, EVT VT); 432e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getExternalSymbol(const char *Sym, DebugLoc dl, EVT VT); 433e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getTargetExternalSymbol(const char *Sym, EVT VT, 4341af2231da64a14d638406d133c7912bfc1c8a9ceChris Lattner unsigned char TargetFlags = 0); 435e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getValueType(EVT); 436e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getRegister(unsigned Reg, EVT VT); 4379cf37e8b48732fccd4c301ed51aafed7074bd84eJakob Stoklund Olesen SDValue getRegisterMask(const uint32_t *RegMask); 4387561d480953e0a2faa4af9be0a00b1180097c4bdChris Lattner SDValue getEHLabel(DebugLoc dl, SDValue Root, MCSymbol *Label); 43946510a73e977273ec67747eb34cbdb43f815e451Dan Gohman SDValue getBlockAddress(const BlockAddress *BA, EVT VT, 4406c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao int64_t Offset = 0, bool isTarget = false, 4416c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao unsigned char TargetFlags = 0); 4426c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao SDValue getTargetBlockAddress(const BlockAddress *BA, EVT VT, 4436c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao int64_t Offset = 0, 4446c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao unsigned char TargetFlags = 0) { 4456c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao return getBlockAddress(BA, VT, Offset, true, TargetFlags); 4466c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao } 447c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 4480f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen SDValue getCopyToReg(SDValue Chain, DebugLoc dl, unsigned Reg, SDValue N) { 449825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson return getNode(ISD::CopyToReg, dl, MVT::Other, Chain, 4500f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen getRegister(Reg, N.getValueType()), N); 4510f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen } 452cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 453e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // This version of the getCopyToReg method takes an extra operand, which 45429d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner // indicates that there is potentially an incoming glue value (if Glue is not 45529d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner // null) and that there should be a glue result. 4560f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen SDValue getCopyToReg(SDValue Chain, DebugLoc dl, unsigned Reg, SDValue N, 45729d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner SDValue Glue) { 458f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTs = getVTList(MVT::Other, MVT::Glue); 45929d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner SDValue Ops[] = { Chain, getRegister(Reg, N.getValueType()), N, Glue }; 46029d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner return getNode(ISD::CopyToReg, dl, VTs, Ops, Glue.getNode() ? 4 : 3); 4610f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen } 46266a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng 463475871a144eb604ddaf37503397ba0941442e5fbDan Gohman // Similar to last getCopyToReg() except parameter Reg is a SDValue 4640f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen SDValue getCopyToReg(SDValue Chain, DebugLoc dl, SDValue Reg, SDValue N, 46529d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner SDValue Glue) { 466f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTs = getVTList(MVT::Other, MVT::Glue); 46729d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner SDValue Ops[] = { Chain, Reg, N, Glue }; 46829d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner return getNode(ISD::CopyToReg, dl, VTs, Ops, Glue.getNode() ? 4 : 3); 4690f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen } 470fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 471e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getCopyFromReg(SDValue Chain, DebugLoc dl, unsigned Reg, EVT VT) { 472825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson SDVTList VTs = getVTList(VT, MVT::Other); 4730f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen SDValue Ops[] = { Chain, getRegister(Reg, VT) }; 474fc1665793e62eb4f26d24b8a19eecf59cd872e2aDan Gohman return getNode(ISD::CopyFromReg, dl, VTs, Ops, 2); 4750f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen } 476fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 477e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // This version of the getCopyFromReg method takes an extra operand, which 47829d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner // indicates that there is potentially an incoming glue value (if Glue is not 47929d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner // null) and that there should be a glue result. 480e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getCopyFromReg(SDValue Chain, DebugLoc dl, unsigned Reg, EVT VT, 48129d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner SDValue Glue) { 482f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTs = getVTList(VT, MVT::Other, MVT::Glue); 48329d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner SDValue Ops[] = { Chain, getRegister(Reg, VT), Glue }; 48429d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner return getNode(ISD::CopyFromReg, dl, VTs, Ops, Glue.getNode() ? 3 : 2); 4850f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen } 48618c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner 487475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getCondCode(ISD::CondCode Cond); 488cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 48977cdf30742284a173fe818417eb482224cdee8d4Mon P Wang /// Returns the ConvertRndSat Note: Avoid using this node because it may 49077cdf30742284a173fe818417eb482224cdee8d4Mon P Wang /// disappear in the future and most targets don't support it. 491e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getConvertRndSat(EVT VT, DebugLoc dl, SDValue Val, SDValue DTy, 4920f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen SDValue STy, 4930f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen SDValue Rnd, SDValue Sat, ISD::CvtCode Code); 4946154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson 4959008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman /// getVectorShuffle - Return an ISD::VECTOR_SHUFFLE node. The number of 4969008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman /// elements in VT, which must be a vector type, must match the number of 4975a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman /// mask elements NumElts. A integer mask element equal to -1 is treated as 4989008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman /// undefined. 4996154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson SDValue getVectorShuffle(EVT VT, DebugLoc dl, SDValue N1, SDValue N2, 5009008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman const int *MaskElts); 50177cdf30742284a173fe818417eb482224cdee8d4Mon P Wang 502a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem /// getAnyExtOrTrunc - Convert Op, which must be of integer type, to the 503a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem /// integer type VT, by either any-extending or truncating it. 504a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem SDValue getAnyExtOrTrunc(SDValue Op, DebugLoc DL, EVT VT); 505a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem 5063a66a68b0cc81193abfc074b1d360a4950151d38Duncan Sands /// getSExtOrTrunc - Convert Op, which must be of integer type, to the 5073a66a68b0cc81193abfc074b1d360a4950151d38Duncan Sands /// integer type VT, by either sign-extending or truncating it. 5083a66a68b0cc81193abfc074b1d360a4950151d38Duncan Sands SDValue getSExtOrTrunc(SDValue Op, DebugLoc DL, EVT VT); 5093a66a68b0cc81193abfc074b1d360a4950151d38Duncan Sands 5103a66a68b0cc81193abfc074b1d360a4950151d38Duncan Sands /// getZExtOrTrunc - Convert Op, which must be of integer type, to the 5113a66a68b0cc81193abfc074b1d360a4950151d38Duncan Sands /// integer type VT, by either zero-extending or truncating it. 5123a66a68b0cc81193abfc074b1d360a4950151d38Duncan Sands SDValue getZExtOrTrunc(SDValue Op, DebugLoc DL, EVT VT); 5133a66a68b0cc81193abfc074b1d360a4950151d38Duncan Sands 5141ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// getZeroExtendInReg - Return the expression required to zero extend the Op 5151ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// value assuming it was the smaller SrcTy value. 516e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getZeroExtendInReg(SDValue Op, DebugLoc DL, EVT SrcTy); 517fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 5184c2454623841f05c6c665659b34c214950d12d7eBob Wilson /// getNOT - Create a bitwise NOT operation as (XOR Val, -1). 519e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getNOT(DebugLoc DL, SDValue Val, EVT VT); 5204c2454623841f05c6c665659b34c214950d12d7eBob Wilson 5216a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner /// getCALLSEQ_START - Return a new CALLSEQ_START node, which always must have 52229d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner /// a glue result (to ensure it's not CSE'd). CALLSEQ_START does not have a 523e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen /// useful DebugLoc. 524475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getCALLSEQ_START(SDValue Chain, SDValue Op) { 525f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTs = getVTList(MVT::Other, MVT::Glue); 526475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { Chain, Op }; 527b494ccf02ce17318d3f2a7b2d674bec60781fc73Chris Lattner return getNode(ISD::CALLSEQ_START, DebugLoc(), VTs, Ops, 2); 5286a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner } 5291ccae666f596d5aeca5c9942995763600b622062Chris Lattner 5300f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling /// getCALLSEQ_END - Return a new CALLSEQ_END node, which always must have a 53129d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner /// glue result (to ensure it's not CSE'd). CALLSEQ_END does not have 532e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen /// a useful DebugLoc. 533475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getCALLSEQ_END(SDValue Chain, SDValue Op1, SDValue Op2, 53429d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner SDValue InGlue) { 535f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList NodeTys = getVTList(MVT::Other, MVT::Glue); 536475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 4> Ops; 5370f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Ops.push_back(Chain); 5380f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Ops.push_back(Op1); 5390f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Ops.push_back(Op2); 54029d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner Ops.push_back(InGlue); 541b494ccf02ce17318d3f2a7b2d674bec60781fc73Chris Lattner return getNode(ISD::CALLSEQ_END, DebugLoc(), NodeTys, &Ops[0], 54229d8f0cae425f1bba583565227eaebf58f26ce73Chris Lattner (unsigned)Ops.size() - (InGlue.getNode() == 0 ? 1 : 0)); 5430f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling } 5440f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 545e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen /// getUNDEF - Return an UNDEF node. UNDEF does not have a useful DebugLoc. 546e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getUNDEF(EVT VT) { 547b494ccf02ce17318d3f2a7b2d674bec60781fc73Chris Lattner return getNode(ISD::UNDEF, DebugLoc(), VT); 548e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen } 549e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen 550b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen /// getGLOBAL_OFFSET_TABLE - Return a GLOBAL_OFFSET_TABLE node. This does 551b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen /// not have a useful DebugLoc. 552e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getGLOBAL_OFFSET_TABLE(EVT VT) { 553b494ccf02ce17318d3f2a7b2d674bec60781fc73Chris Lattner return getNode(ISD::GLOBAL_OFFSET_TABLE, DebugLoc(), VT); 554b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen } 555b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen 556c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getNode - Gets or creates the specified node. 557cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 558e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getNode(unsigned Opcode, DebugLoc DL, EVT VT); 559e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getNode(unsigned Opcode, DebugLoc DL, EVT VT, SDValue N); 560e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getNode(unsigned Opcode, DebugLoc DL, EVT VT, SDValue N1, SDValue N2); 561e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getNode(unsigned Opcode, DebugLoc DL, EVT VT, 5627ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue N1, SDValue N2, SDValue N3); 563e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getNode(unsigned Opcode, DebugLoc DL, EVT VT, 5647ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue N1, SDValue N2, SDValue N3, SDValue N4); 565e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getNode(unsigned Opcode, DebugLoc DL, EVT VT, 5667ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue N1, SDValue N2, SDValue N3, SDValue N4, 5677ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue N5); 568e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getNode(unsigned Opcode, DebugLoc DL, EVT VT, 5697ade28cd62f5188951387e1056a46001388a21f9Bill Wendling const SDUse *Ops, unsigned NumOps); 570e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getNode(unsigned Opcode, DebugLoc DL, EVT VT, 5717ade28cd62f5188951387e1056a46001388a21f9Bill Wendling const SDValue *Ops, unsigned NumOps); 5727ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue getNode(unsigned Opcode, DebugLoc DL, 573e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson const std::vector<EVT> &ResultTys, 5747ade28cd62f5188951387e1056a46001388a21f9Bill Wendling const SDValue *Ops, unsigned NumOps); 575e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getNode(unsigned Opcode, DebugLoc DL, const EVT *VTs, unsigned NumVTs, 5767ade28cd62f5188951387e1056a46001388a21f9Bill Wendling const SDValue *Ops, unsigned NumOps); 5777ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs, 5787ade28cd62f5188951387e1056a46001388a21f9Bill Wendling const SDValue *Ops, unsigned NumOps); 5797ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs); 5807ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs, SDValue N); 5817ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs, 5827ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue N1, SDValue N2); 5837ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs, 5847ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue N1, SDValue N2, SDValue N3); 5857ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs, 5867ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue N1, SDValue N2, SDValue N3, SDValue N4); 5877ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs, 5887ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue N1, SDValue N2, SDValue N3, SDValue N4, 5897ade28cd62f5188951387e1056a46001388a21f9Bill Wendling SDValue N5); 590475871a144eb604ddaf37503397ba0941442e5fbDan Gohman 59198ca4f2a325f72374a477f9deba7d09e8999c29bDan Gohman /// getStackArgumentTokenFactor - Compute a TokenFactor to force all 59298ca4f2a325f72374a477f9deba7d09e8999c29bDan Gohman /// the incoming stack arguments to be loaded from the stack. This is 59398ca4f2a325f72374a477f9deba7d09e8999c29bDan Gohman /// used in tail call lowering to protect stack arguments from being 59498ca4f2a325f72374a477f9deba7d09e8999c29bDan Gohman /// clobbered. 59598ca4f2a325f72374a477f9deba7d09e8999c29bDan Gohman SDValue getStackArgumentTokenFactor(SDValue Chain); 59698ca4f2a325f72374a477f9deba7d09e8999c29bDan Gohman 5970f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen SDValue getMemcpy(SDValue Chain, DebugLoc dl, SDValue Dst, SDValue Src, 59820adc9dc4650313f017b27d9818eb2176238113dMon P Wang SDValue Size, unsigned Align, bool isVol, bool AlwaysInline, 599e72f2027e9116c55a5b39ac72732df8d6c45d37cChris Lattner MachinePointerInfo DstPtrInfo, 600e72f2027e9116c55a5b39ac72732df8d6c45d37cChris Lattner MachinePointerInfo SrcPtrInfo); 6015c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola 6020f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen SDValue getMemmove(SDValue Chain, DebugLoc dl, SDValue Dst, SDValue Src, 60320adc9dc4650313f017b27d9818eb2176238113dMon P Wang SDValue Size, unsigned Align, bool isVol, 604e72f2027e9116c55a5b39ac72732df8d6c45d37cChris Lattner MachinePointerInfo DstPtrInfo, 605e72f2027e9116c55a5b39ac72732df8d6c45d37cChris Lattner MachinePointerInfo SrcPtrInfo); 6065c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola 6070f502f6f44f2756f5cb7b17d8f1d8eae000d51b4Dale Johannesen SDValue getMemset(SDValue Chain, DebugLoc dl, SDValue Dst, SDValue Src, 60820adc9dc4650313f017b27d9818eb2176238113dMon P Wang SDValue Size, unsigned Align, bool isVol, 609e72f2027e9116c55a5b39ac72732df8d6c45d37cChris Lattner MachinePointerInfo DstPtrInfo); 6105c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola 6117cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// getSetCC - Helper function to make it easier to build SetCC's if you just 612475871a144eb604ddaf37503397ba0941442e5fbDan Gohman /// have an ISD::CondCode instead of an SDValue. 6137cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// 614e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getSetCC(DebugLoc DL, EVT VT, SDValue LHS, SDValue RHS, 615d69c3141ed6d237ad19fdfbfcef8901491b24c2eBill Wendling ISD::CondCode Cond) { 61628b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands assert(LHS.getValueType().isVector() == RHS.getValueType().isVector() && 61728b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands "Cannot compare scalars to vectors"); 61828b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands assert(LHS.getValueType().isVector() == VT.isVector() && 61928b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands "Cannot compare scalars to vectors"); 620d69c3141ed6d237ad19fdfbfcef8901491b24c2eBill Wendling return getNode(ISD::SETCC, DL, VT, LHS, RHS, getCondCode(Cond)); 6217cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner } 6229373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 6239373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// getSelectCC - Helper function to make it easier to build SelectCC's if you 624475871a144eb604ddaf37503397ba0941442e5fbDan Gohman /// just have an ISD::CondCode instead of an SDValue. 6259373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// 626d69c3141ed6d237ad19fdfbfcef8901491b24c2eBill Wendling SDValue getSelectCC(DebugLoc DL, SDValue LHS, SDValue RHS, 627d69c3141ed6d237ad19fdfbfcef8901491b24c2eBill Wendling SDValue True, SDValue False, ISD::CondCode Cond) { 628d69c3141ed6d237ad19fdfbfcef8901491b24c2eBill Wendling return getNode(ISD::SELECT_CC, DL, True.getValueType(), 629d69c3141ed6d237ad19fdfbfcef8901491b24c2eBill Wendling LHS, RHS, True, False, getCondCode(Cond)); 6309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 631fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 632acc398c195a697795bff3245943d104eb19192b9Nate Begeman /// getVAArg - VAArg produces a result and token chain, and takes a pointer 633acc398c195a697795bff3245943d104eb19192b9Nate Begeman /// and a source value as input. 634e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getVAArg(EVT VT, DebugLoc dl, SDValue Chain, SDValue Ptr, 635cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola SDValue SV, unsigned Align); 6367cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 637fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel /// getAtomic - Gets a node for an atomic op, produces result and chain and 638c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang /// takes 3 operands 639e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT, SDValue Chain, 64060bddc8bcd787be645d2f3b64117fee884270e6aChris Lattner SDValue Ptr, SDValue Cmp, SDValue Swp, 64155ba816883842e793cdeb32fcb805c4e011b527fEli Friedman MachinePointerInfo PtrInfo, unsigned Alignment, 64255ba816883842e793cdeb32fcb805c4e011b527fEli Friedman AtomicOrdering Ordering, 64355ba816883842e793cdeb32fcb805c4e011b527fEli Friedman SynchronizationScope SynchScope); 644c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman SDValue getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT, SDValue Chain, 645c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman SDValue Ptr, SDValue Cmp, SDValue Swp, 64655ba816883842e793cdeb32fcb805c4e011b527fEli Friedman MachineMemOperand *MMO, 64755ba816883842e793cdeb32fcb805c4e011b527fEli Friedman AtomicOrdering Ordering, 64855ba816883842e793cdeb32fcb805c4e011b527fEli Friedman SynchronizationScope SynchScope); 649ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 650327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman /// getAtomic - Gets a node for an atomic op, produces result (if relevant) 651327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman /// and chain and takes 2 operands. 652e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT, SDValue Chain, 653e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen SDValue Ptr, SDValue Val, const Value* PtrVal, 654327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman unsigned Alignment, AtomicOrdering Ordering, 655327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman SynchronizationScope SynchScope); 656327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman SDValue getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT, SDValue Chain, 657327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman SDValue Ptr, SDValue Val, MachineMemOperand *MMO, 658327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman AtomicOrdering Ordering, 659327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman SynchronizationScope SynchScope); 660327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman 661327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman /// getAtomic - Gets a node for an atomic op, produces result and chain and 662327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman /// takes 1 operand. 663327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman SDValue getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT, EVT VT, 664327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman SDValue Chain, SDValue Ptr, const Value* PtrVal, 66555ba816883842e793cdeb32fcb805c4e011b527fEli Friedman unsigned Alignment, 66655ba816883842e793cdeb32fcb805c4e011b527fEli Friedman AtomicOrdering Ordering, 66755ba816883842e793cdeb32fcb805c4e011b527fEli Friedman SynchronizationScope SynchScope); 668327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman SDValue getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT, EVT VT, 669327236cd6c211e54fc6288b0ac2b413901cc0611Eli Friedman SDValue Chain, SDValue Ptr, MachineMemOperand *MMO, 67055ba816883842e793cdeb32fcb805c4e011b527fEli Friedman AtomicOrdering Ordering, 67155ba816883842e793cdeb32fcb805c4e011b527fEli Friedman SynchronizationScope SynchScope); 672ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 673c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang /// getMemIntrinsicNode - Creates a MemIntrinsicNode that may produce a 674c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman /// result and takes a list of operands. Opcode may be INTRINSIC_VOID, 675c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman /// INTRINSIC_W_CHAIN, or a target-specific opcode with a value not 676c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman /// less than FIRST_TARGET_MEMORY_OPCODE. 677e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen SDValue getMemIntrinsicNode(unsigned Opcode, DebugLoc dl, 678e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson const EVT *VTs, unsigned NumVTs, 679e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen const SDValue *Ops, unsigned NumOps, 680e9ba5dd236f48708a00bd3bb0519148f943cc897Chris Lattner EVT MemVT, MachinePointerInfo PtrInfo, 681e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen unsigned Align = 0, bool Vol = false, 682e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen bool ReadMem = true, bool WriteMem = true); 683c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang 684e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen SDValue getMemIntrinsicNode(unsigned Opcode, DebugLoc dl, SDVTList VTList, 685e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen const SDValue *Ops, unsigned NumOps, 686e9ba5dd236f48708a00bd3bb0519148f943cc897Chris Lattner EVT MemVT, MachinePointerInfo PtrInfo, 687e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen unsigned Align = 0, bool Vol = false, 688e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen bool ReadMem = true, bool WriteMem = true); 689c4d1021ead43cfa7da08a8f7ddc9a059a8ba14c5Mon P Wang 690c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman SDValue getMemIntrinsicNode(unsigned Opcode, DebugLoc dl, SDVTList VTList, 691c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman const SDValue *Ops, unsigned NumOps, 692c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman EVT MemVT, MachineMemOperand *MMO); 693c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 6944bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands /// getMergeValues - Create a MERGE_VALUES node from the given operands. 69554c94525f420cab274af60e98a77f081f96e59c2Dale Johannesen SDValue getMergeValues(const SDValue *Ops, unsigned NumOps, DebugLoc dl); 696f9516208e57364ab1e7d8748af1f59a2ea5fb572Duncan Sands 697c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getLoad - Loads are not normal binary operators: their result type is not 698c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// determined by their operands, and they produce a value AND a token chain. 699cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 700e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue getLoad(EVT VT, DebugLoc dl, SDValue Chain, SDValue Ptr, 701e72f2027e9116c55a5b39ac72732df8d6c45d37cChris Lattner MachinePointerInfo PtrInfo, bool isVolatile, 702d752e0f7e64585839cb3a458ef52456eaebbea3cPete Cooper bool isNonTemporal, bool isInvariant, unsigned Alignment, 70395d594cac3737ae1594a391276942a443cac426bRafael Espindola const MDNode *TBAAInfo = 0, const MDNode *Ranges = 0); 704a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue getExtLoad(ISD::LoadExtType ExtType, DebugLoc dl, EVT VT, 705e72f2027e9116c55a5b39ac72732df8d6c45d37cChris Lattner SDValue Chain, SDValue Ptr, MachinePointerInfo PtrInfo, 706e72f2027e9116c55a5b39ac72732df8d6c45d37cChris Lattner EVT MemVT, bool isVolatile, 707f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman bool isNonTemporal, unsigned Alignment, 708f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman const MDNode *TBAAInfo = 0); 709e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen SDValue getIndexedLoad(SDValue OrigLoad, DebugLoc dl, SDValue Base, 710bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng SDValue Offset, ISD::MemIndexedMode AM); 711bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng SDValue getLoad(ISD::MemIndexedMode AM, ISD::LoadExtType ExtType, 712bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng EVT VT, DebugLoc dl, 713bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng SDValue Chain, SDValue Ptr, SDValue Offset, 7145c5cb2a1717f8e30b1849d7ec1cf269bc5d66877Chris Lattner MachinePointerInfo PtrInfo, EVT MemVT, 715d752e0f7e64585839cb3a458ef52456eaebbea3cPete Cooper bool isVolatile, bool isNonTemporal, bool isInvariant, 71695d594cac3737ae1594a391276942a443cac426bRafael Espindola unsigned Alignment, const MDNode *TBAAInfo = 0, 71795d594cac3737ae1594a391276942a443cac426bRafael Espindola const MDNode *Ranges = 0); 7185c5cb2a1717f8e30b1849d7ec1cf269bc5d66877Chris Lattner SDValue getLoad(ISD::MemIndexedMode AM, ISD::LoadExtType ExtType, 7195c5cb2a1717f8e30b1849d7ec1cf269bc5d66877Chris Lattner EVT VT, DebugLoc dl, 7205c5cb2a1717f8e30b1849d7ec1cf269bc5d66877Chris Lattner SDValue Chain, SDValue Ptr, SDValue Offset, 721c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman EVT MemVT, MachineMemOperand *MMO); 7222d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 723ad071e1cd1a4b880019f1b2e827ee81867815f82Evan Cheng /// getStore - Helper function to build ISD::STORE nodes. 724ad071e1cd1a4b880019f1b2e827ee81867815f82Evan Cheng /// 725e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen SDValue getStore(SDValue Chain, DebugLoc dl, SDValue Val, SDValue Ptr, 7265c5cb2a1717f8e30b1849d7ec1cf269bc5d66877Chris Lattner MachinePointerInfo PtrInfo, bool isVolatile, 727f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman bool isNonTemporal, unsigned Alignment, 728f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman const MDNode *TBAAInfo = 0); 7295c5cb2a1717f8e30b1849d7ec1cf269bc5d66877Chris Lattner SDValue getStore(SDValue Chain, DebugLoc dl, SDValue Val, SDValue Ptr, 730c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MachineMemOperand *MMO); 7315c5cb2a1717f8e30b1849d7ec1cf269bc5d66877Chris Lattner SDValue getTruncStore(SDValue Chain, DebugLoc dl, SDValue Val, SDValue Ptr, 7325c5cb2a1717f8e30b1849d7ec1cf269bc5d66877Chris Lattner MachinePointerInfo PtrInfo, EVT TVT, 7335c5cb2a1717f8e30b1849d7ec1cf269bc5d66877Chris Lattner bool isNonTemporal, bool isVolatile, 734f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman unsigned Alignment, 735f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman const MDNode *TBAAInfo = 0); 736e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen SDValue getTruncStore(SDValue Chain, DebugLoc dl, SDValue Val, SDValue Ptr, 737c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman EVT TVT, MachineMemOperand *MMO); 738e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen SDValue getIndexedStore(SDValue OrigStoe, DebugLoc dl, SDValue Base, 739e8c17335c53f0f37262ee342f46b0d00ac0c1493Dale Johannesen SDValue Offset, ISD::MemIndexedMode AM); 740ad071e1cd1a4b880019f1b2e827ee81867815f82Evan Cheng 741101a90f3d3c3ad9159676ba744b59b3a9d0b4af5Dan Gohman /// getSrcValue - Construct a node to track a Value* through the backend. 742475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue getSrcValue(const Value *v); 74369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 744decc2671516e6c52ee2f29f7746f8d02753845eaChris Lattner /// getMDNode - Return an MDNodeSDNode which holds an MDNode. 745decc2671516e6c52ee2f29f7746f8d02753845eaChris Lattner SDValue getMDNode(const MDNode *MD); 7466154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson 74792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands /// getShiftAmountOperand - Return the specified value casted to 74892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands /// the target's desired shift amount type. 7496154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson SDValue getShiftAmountOperand(EVT LHSTy, SDValue Op); 75092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands 751b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// UpdateNodeOperands - *Mutate* the specified node in-place to have the 752b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// specified operands. If the resultant node already exists in the DAG, 753b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// this does not modify the specified node, instead it returns the node that 754b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// already exists. If the resultant node does not exist in the DAG, the 755b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// input node is returned. As a degenerate case, if you specify the same 756b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// input operands as the node already has, the input node is returned. 757027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman SDNode *UpdateNodeOperands(SDNode *N, SDValue Op); 758027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman SDNode *UpdateNodeOperands(SDNode *N, SDValue Op1, SDValue Op2); 759027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman SDNode *UpdateNodeOperands(SDNode *N, SDValue Op1, SDValue Op2, 760475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op3); 761027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman SDNode *UpdateNodeOperands(SDNode *N, SDValue Op1, SDValue Op2, 762475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op3, SDValue Op4); 763027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman SDNode *UpdateNodeOperands(SDNode *N, SDValue Op1, SDValue Op2, 764475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op3, SDValue Op4, SDValue Op5); 765027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman SDNode *UpdateNodeOperands(SDNode *N, 766475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 767fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 7681b95095857b78e12138c22e76c7936611c51355bChris Lattner /// SelectNodeTo - These are used for target selectors to *mutate* the 7691b95095857b78e12138c22e76c7936611c51355bChris Lattner /// specified node to have the specified return type, Target opcode, and 7701b95095857b78e12138c22e76c7936611c51355bChris Lattner /// operands. Note that target opcodes are stored as 771e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// ~TargetOpcode in the node opcode field. The resultant node is returned. 772e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, EVT VT); 773e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, EVT VT, SDValue Op1); 774e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, EVT VT, 775475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op1, SDValue Op2); 776e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, EVT VT, 777475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op1, SDValue Op2, SDValue Op3); 778e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, EVT VT, 779475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 780e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, EVT VT1, EVT VT2); 781e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, EVT VT1, 782e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT2, const SDValue *Ops, unsigned NumOps); 783e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, EVT VT1, 784e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT2, EVT VT3, const SDValue *Ops, unsigned NumOps); 785e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned MachineOpc, EVT VT1, 786e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT2, EVT VT3, EVT VT4, const SDValue *Ops, 78713d6d446f62f908e8cf74acb3a4df65ea5f497ceBill Wendling unsigned NumOps); 788e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, EVT VT1, 789e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT2, SDValue Op1); 790e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, EVT VT1, 791e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT2, SDValue Op1, SDValue Op2); 792e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, EVT VT1, 793e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT2, SDValue Op1, SDValue Op2, SDValue Op3); 794e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, EVT VT1, 795e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT2, EVT VT3, SDValue Op1, SDValue Op2, SDValue Op3); 796cd920d9ecfcefff13c3619a32b58399cac2e3630Dan Gohman SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, SDVTList VTs, 797475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 798694481ee01bfe507c6e37de0dc1c64cff455eefdEvan Cheng 799df51247725143acb781c224faffd848cc7cf95d8Chris Lattner /// MorphNodeTo - This *mutates* the specified node to have the specified 800e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// return type, opcode, and operands. 801e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman SDNode *MorphNodeTo(SDNode *N, unsigned Opc, SDVTList VTs, 802475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 803753c8f20e45f6e4198c7cf4096ecc8948a029e9cChris Lattner 804602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman /// getMachineNode - These are used for target selectors to create a new node 805602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman /// with specified return type(s), MachineInstr opcode, and operands. 8066ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// 807602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman /// Note that getMachineNode returns the resultant node. If there is already 808602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman /// a node of the specified opcode and operands, it returns that node instead 809602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman /// of the current one. 810c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT); 811c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT, 812c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman SDValue Op1); 813c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT, 814c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman SDValue Op1, SDValue Op2); 815c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT, 816602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman SDValue Op1, SDValue Op2, SDValue Op3); 817c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT, 818602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman const SDValue *Ops, unsigned NumOps); 819c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT1, EVT VT2); 820c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT1, EVT VT2, 821602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman SDValue Op1); 822c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT1, 823602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman EVT VT2, SDValue Op1, SDValue Op2); 824c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT1, 825602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman EVT VT2, SDValue Op1, SDValue Op2, SDValue Op3); 826c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT1, EVT VT2, 827602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman const SDValue *Ops, unsigned NumOps); 828c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT1, EVT VT2, 829602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman EVT VT3, SDValue Op1, SDValue Op2); 830c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT1, EVT VT2, 831602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman EVT VT3, SDValue Op1, SDValue Op2, SDValue Op3); 832c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT1, EVT VT2, 833602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman EVT VT3, const SDValue *Ops, unsigned NumOps); 834c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT1, EVT VT2, 835602b0c8c17f458d2c80f2deb3c8e554d516ee316Dan Gohman EVT VT3, EVT VT4, const SDValue *Ops, unsigned NumOps); 836c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, 837c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman const std::vector<EVT> &ResultTys, const SDValue *Ops, 838c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman unsigned NumOps); 839c81b783e2777b70f4533a4750489d058b6b74ad9Dan Gohman MachineSDNode *getMachineNode(unsigned Opcode, DebugLoc dl, SDVTList VTs, 840c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman const SDValue *Ops, unsigned NumOps); 84108b1173971a51eb89d7d6ee0992c39170c86994aEvan Cheng 8426a402dc952ccad3f8fd0d9e272dbdd261f50854eDan Gohman /// getTargetExtractSubreg - A convenience function for creating 8436a402dc952ccad3f8fd0d9e272dbdd261f50854eDan Gohman /// TargetInstrInfo::EXTRACT_SUBREG nodes. 8446a402dc952ccad3f8fd0d9e272dbdd261f50854eDan Gohman SDValue getTargetExtractSubreg(int SRIdx, DebugLoc DL, EVT VT, 8456a402dc952ccad3f8fd0d9e272dbdd261f50854eDan Gohman SDValue Operand); 8466a402dc952ccad3f8fd0d9e272dbdd261f50854eDan Gohman 8475fcbf0d26ecb99d54c182f542bf8db43ff048d6dBob Wilson /// getTargetInsertSubreg - A convenience function for creating 8485fcbf0d26ecb99d54c182f542bf8db43ff048d6dBob Wilson /// TargetInstrInfo::INSERT_SUBREG nodes. 8495fcbf0d26ecb99d54c182f542bf8db43ff048d6dBob Wilson SDValue getTargetInsertSubreg(int SRIdx, DebugLoc DL, EVT VT, 8505fcbf0d26ecb99d54c182f542bf8db43ff048d6dBob Wilson SDValue Operand, SDValue Subreg); 8515fcbf0d26ecb99d54c182f542bf8db43ff048d6dBob Wilson 85208b1173971a51eb89d7d6ee0992c39170c86994aEvan Cheng /// getNodeIfExists - Get the specified node if it's already available, or 85308b1173971a51eb89d7d6ee0992c39170c86994aEvan Cheng /// else return NULL. 85408b1173971a51eb89d7d6ee0992c39170c86994aEvan Cheng SDNode *getNodeIfExists(unsigned Opcode, SDVTList VTs, 855475871a144eb604ddaf37503397ba0941442e5fbDan Gohman const SDValue *Ops, unsigned NumOps); 856fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 85731441b7e95e0840e1ae144e5db6f791d6a36bc60Evan Cheng /// getDbgValue - Creates a SDDbgValue node. 85831441b7e95e0840e1ae144e5db6f791d6a36bc60Evan Cheng /// 85931441b7e95e0840e1ae144e5db6f791d6a36bc60Evan Cheng SDDbgValue *getDbgValue(MDNode *MDPtr, SDNode *N, unsigned R, uint64_t Off, 86031441b7e95e0840e1ae144e5db6f791d6a36bc60Evan Cheng DebugLoc DL, unsigned O); 86146510a73e977273ec67747eb34cbdb43f815e451Dan Gohman SDDbgValue *getDbgValue(MDNode *MDPtr, const Value *C, uint64_t Off, 86231441b7e95e0840e1ae144e5db6f791d6a36bc60Evan Cheng DebugLoc DL, unsigned O); 86331441b7e95e0840e1ae144e5db6f791d6a36bc60Evan Cheng SDDbgValue *getDbgValue(MDNode *MDPtr, unsigned FI, uint64_t Off, 86431441b7e95e0840e1ae144e5db6f791d6a36bc60Evan Cheng DebugLoc DL, unsigned O); 86531441b7e95e0840e1ae144e5db6f791d6a36bc60Evan Cheng 866f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// RemoveDeadNode - Remove the specified node from the system. If any of its 867f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// operands then becomes dead, remove them as well. Inform UpdateListener 868f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// for each node deleted. 869bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen void RemoveDeadNode(SDNode *N); 870fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 8710fe9c6e7babb3c0731d9cb864ec498ec4184760fDan Gohman /// RemoveDeadNodes - This method deletes the unreachable nodes in the 8720fe9c6e7babb3c0731d9cb864ec498ec4184760fDan Gohman /// given list, and any nodes that become unreachable as a result. 873bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen void RemoveDeadNodes(SmallVectorImpl<SDNode *> &DeadNodes); 8740fe9c6e7babb3c0731d9cb864ec498ec4184760fDan Gohman 8756542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner /// ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead. 87626005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// This can cause recursive merging of nodes in the DAG. Use the first 87726005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// version if 'From' is known to have a single result, use the second 878c23e4968790395053f3f52aeb3342637fcaafdbfDan Gohman /// if you have two nodes with identical results (or if 'To' has a superset 879c23e4968790395053f3f52aeb3342637fcaafdbfDan Gohman /// of the results of 'From'), use the third otherwise. 8806542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner /// 881fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel /// These methods all take an optional UpdateListener, which (if not null) is 882f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// informed about nodes that are deleted and modified due to recursive 883f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// changes in the dag. 884fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// 8859ad136c851e0a66eb471573aac9fec47d53a61baDan Gohman /// These functions only replace all existing uses. It's possible that as 8869ad136c851e0a66eb471573aac9fec47d53a61baDan Gohman /// these replacements are being performed, CSE may cause the From node 8879ad136c851e0a66eb471573aac9fec47d53a61baDan Gohman /// to be given new uses. These new uses of From are left in place, and 8887a2bdde0a0eebcd2125055e0eacaca040f0b766cChris Lattner /// not automatically transferred to To. 8899ad136c851e0a66eb471573aac9fec47d53a61baDan Gohman /// 890bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen void ReplaceAllUsesWith(SDValue From, SDValue Op); 891bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen void ReplaceAllUsesWith(SDNode *From, SDNode *To); 892bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen void ReplaceAllUsesWith(SDNode *From, const SDValue *To); 893fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng 89480274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner /// ReplaceAllUsesOfValueWith - Replace any uses of From with To, leaving 895f8dc0617baceeba8ccd67c8881eb88eb1be2902cChris Lattner /// uses of other values produced by From.Val alone. 896bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen void ReplaceAllUsesOfValueWith(SDValue From, SDValue To); 89780274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner 898e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// ReplaceAllUsesOfValuesWith - Like ReplaceAllUsesOfValueWith, but 899e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// for multiple values at once. This correctly handles the case where 900e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman /// there is an overlap between the From values and the To values. 901475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void ReplaceAllUsesOfValuesWith(const SDValue *From, const SDValue *To, 902bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen unsigned Num); 903e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman 904f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman /// AssignTopologicalOrder - Topological-sort the AllNodes list and a 905f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman /// assign a unique node id for each node in the DAG based on their 906f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman /// topological order. Returns the number of nodes. 907f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman unsigned AssignTopologicalOrder(); 908e6f35d8a5cc92d776cf460200e2b815e8c301b14Evan Cheng 9098be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman /// RepositionNode - Move node N in the AllNodes list to be immediately 9108be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman /// before the given iterator Position. This may be used to update the 9118be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman /// topological ordering when the list of nodes is modified. 9128be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman void RepositionNode(allnodes_iterator Position, SDNode *N) { 9138be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman AllNodes.insert(Position, AllNodes.remove(N)); 9148be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman } 9158be6bbe5bfd50945ac6c5542e0f54a0924a5db8dDan Gohman 9161efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng /// isCommutativeBinOp - Returns true if the opcode is a commutative binary 9171efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng /// operation. 9181efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng static bool isCommutativeBinOp(unsigned Opcode) { 9194ae9e0c5301126d7f2d4b2975eb86ed21f7b574dChris Lattner // FIXME: This should get its info from the td file, so that we can include 9204ae9e0c5301126d7f2d4b2975eb86ed21f7b574dChris Lattner // target info. 9211efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng switch (Opcode) { 9221efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::ADD: 9231efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::MUL: 9241efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::MULHU: 9251efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::MULHS: 926b6c7437568f0472548ede2710458f52cfad4532eDan Gohman case ISD::SMUL_LOHI: 927b6c7437568f0472548ede2710458f52cfad4532eDan Gohman case ISD::UMUL_LOHI: 9281efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::FADD: 9291efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::FMUL: 9301efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::AND: 9311efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::OR: 9321efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::XOR: 93356e04a80b3cbd348aaf8f1828ed28fb4a9de2312Dan Gohman case ISD::SADDO: 93456e04a80b3cbd348aaf8f1828ed28fb4a9de2312Dan Gohman case ISD::UADDO: 935fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel case ISD::ADDC: 9361efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng case ISD::ADDE: return true; 9371efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng default: return false; 9381efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng } 9391efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng } 9401efba0ecb4d0b3807c48e6e0f74e3ce5c9fad809Evan Cheng 941b4e6a5df5dada0cd919cc6e2717eb3118db9cc45Bill Wendling /// AssignOrdering - Assign an order to the SDNode. 9424533cac557cdcc13e7c990942758ec8338d9172aBill Wendling void AssignOrdering(const SDNode *SD, unsigned Order); 943b4e6a5df5dada0cd919cc6e2717eb3118db9cc45Bill Wendling 9440777e927214c61c5d681e5b7dd5d00665c81133aBill Wendling /// GetOrdering - Get the order for the SDNode. 9450777e927214c61c5d681e5b7dd5d00665c81133aBill Wendling unsigned GetOrdering(const SDNode *SD) const; 9460777e927214c61c5d681e5b7dd5d00665c81133aBill Wendling 947bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng /// AddDbgValue - Add a dbg_value SDNode. If SD is non-null that means the 948bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng /// value is produced by SD. 949fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen void AddDbgValue(SDDbgValue *DB, SDNode *SD, bool isParameter); 950bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen 951bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng /// GetDbgValues - Get the debug values which reference the given SDNode. 95222a54c1cd711afccd4558374918d12a939e1cca5Benjamin Kramer ArrayRef<SDDbgValue*> GetDbgValues(const SDNode* SD) { 953bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng return DbgInfo->getSDDbgValues(SD); 954bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng } 9556154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson 956a2e868d34ccfed46310e98338ded6a74b2b01308Devang Patel /// TransferDbgValues - Transfer SDDbgValues. 957a2e868d34ccfed46310e98338ded6a74b2b01308Devang Patel void TransferDbgValues(SDValue From, SDValue To); 958bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen 959bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng /// hasDebugValues - Return true if there are any SDDbgValue nodes associated 960bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng /// with this SelectionDAG. 961bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng bool hasDebugValues() const { return !DbgInfo->empty(); } 962bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen 963bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng SDDbgInfo::DbgIterator DbgBegin() { return DbgInfo->DbgBegin(); } 964bfcb3051899b7141a946d769fcf6e8a8453bc530Evan Cheng SDDbgInfo::DbgIterator DbgEnd() { return DbgInfo->DbgEnd(); } 9656154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson SDDbgInfo::DbgIterator ByvalParmDbgBegin() { 9666154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson return DbgInfo->ByvalParmDbgBegin(); 967fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen } 9686154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson SDDbgInfo::DbgIterator ByvalParmDbgEnd() { 9696154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson return DbgInfo->ByvalParmDbgEnd(); 970fdb42fa5fe794cc2c89e2ed7f57a89ed24d9952aDale Johannesen } 971bfdf7f38523bd38ae0538861a2bfd8bdc46e5c33Dale Johannesen 972cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner void dump() const; 973d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner 97437ce9df0da6cddc3b8bfef9b63d33d058a0f2f15Chris Lattner /// CreateStackTemporary - Create a stack temporary, suitable for holding the 975364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang /// specified value type. If minAlign is specified, the slot size will have 976364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang /// at least that alignment. 977e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue CreateStackTemporary(EVT VT, unsigned minAlign = 1); 97847d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 97947d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands /// CreateStackTemporary - Create a stack temporary suitable for holding 98047d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands /// either of the specified value types. 981e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue CreateStackTemporary(EVT VT1, EVT VT2); 98247d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 983fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel /// FoldConstantArithmetic - 984f3cbca279db891403659208a99f8e1cceb8c9ea6Bill Wendling SDValue FoldConstantArithmetic(unsigned Opcode, 985e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT, 986f3cbca279db891403659208a99f8e1cceb8c9ea6Bill Wendling ConstantSDNode *Cst1, 987f3cbca279db891403659208a99f8e1cceb8c9ea6Bill Wendling ConstantSDNode *Cst2); 988f3cbca279db891403659208a99f8e1cceb8c9ea6Bill Wendling 98951dabfb28375be7bc5848806ae31cd068b6133f8Chris Lattner /// FoldSetCC - Constant fold a setcc to true or false. 990e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue FoldSetCC(EVT VT, SDValue N1, 991ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen SDValue N2, ISD::CondCode Cond, DebugLoc dl); 992fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 9932e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman /// SignBitIsZero - Return true if the sign bit of Op is known to be zero. We 9942e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman /// use this predicate to simplify operations downstream. 995475871a144eb604ddaf37503397ba0941442e5fbDan Gohman bool SignBitIsZero(SDValue Op, unsigned Depth = 0) const; 9962e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman 997ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// MaskedValueIsZero - Return true if 'Op & Mask' is known to be zero. We 998ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// use this predicate to simplify operations downstream. Op and Mask are 999ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// known to be the same type. 1000475871a144eb604ddaf37503397ba0941442e5fbDan Gohman bool MaskedValueIsZero(SDValue Op, const APInt &Mask, unsigned Depth = 0) 1001ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman const; 1002fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 1003ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// ComputeMaskedBits - Determine which of the bits specified in Mask are 1004ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// known to be either zero or one and return them in the KnownZero/KnownOne 1005ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// bitsets. This code only analyzes bits in Mask, in order to short-circuit 1006fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel /// processing. Targets can implement the computeMaskedBitsForTargetNode 1007ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// method in the TargetLowering class to allow target nodes to be understood. 100826c8dcc692fb2addd475446cfff24d6a4e958bcaRafael Espindola void ComputeMaskedBits(SDValue Op, APInt &KnownZero, APInt &KnownOne, 100926c8dcc692fb2addd475446cfff24d6a4e958bcaRafael Espindola unsigned Depth = 0) const; 1010fd29e0eb060ea8b4d490860329234d2ae5f5952eDan Gohman 1011ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// ComputeNumSignBits - Return the number of times the sign bit of the 1012ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// register is replicated into the other bits. We know that at least 1 bit 1013ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// is always equal to the sign bit (itself), but other cases can give us 1014ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// information. For example, immediately after an "SRA X, 2", we know that 1015ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// the top 3 bits are all equal to each other, so we return 3. Targets can 1016ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// implement the ComputeNumSignBitsForTarget method in the TargetLowering 1017ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman /// class to allow target nodes to be understood. 1018475871a144eb604ddaf37503397ba0941442e5fbDan Gohman unsigned ComputeNumSignBits(SDValue Op, unsigned Depth = 0) const; 1019a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng 1020a18da59d4028a2e3f5751294e5f487281649299cChris Lattner /// isBaseWithConstantOffset - Return true if the specified operand is an 1021a18da59d4028a2e3f5751294e5f487281649299cChris Lattner /// ISD::ADD with a ConstantSDNode on the right-hand side, or if it is an 1022a18da59d4028a2e3f5751294e5f487281649299cChris Lattner /// ISD::OR with a ConstantSDNode that is guaranteed to have the same 1023a18da59d4028a2e3f5751294e5f487281649299cChris Lattner /// semantics as an ADD. This handles the equivalence: 1024463b3c2a9974acf7586d1e6a4416aa7cc004ff0eChris Lattner /// X|Cst == X+Cst iff X&Cst = 0. 1025a18da59d4028a2e3f5751294e5f487281649299cChris Lattner bool isBaseWithConstantOffset(SDValue Op) const; 10266154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson 10278d44b28bc6f615b9ad79b066987d53b1ea2a2942Dan Gohman /// isKnownNeverNan - Test whether the given SDValue is known to never be NaN. 10288d44b28bc6f615b9ad79b066987d53b1ea2a2942Dan Gohman bool isKnownNeverNaN(SDValue Op) const; 10298d44b28bc6f615b9ad79b066987d53b1ea2a2942Dan Gohman 1030e832693acbfc713bcaf44720efa8149e93a38027Dan Gohman /// isKnownNeverZero - Test whether the given SDValue is known to never be 1031e832693acbfc713bcaf44720efa8149e93a38027Dan Gohman /// positive or negative Zero. 1032e832693acbfc713bcaf44720efa8149e93a38027Dan Gohman bool isKnownNeverZero(SDValue Op) const; 1033e832693acbfc713bcaf44720efa8149e93a38027Dan Gohman 1034e832693acbfc713bcaf44720efa8149e93a38027Dan Gohman /// isEqualTo - Test whether two SDValues are known to compare equal. This 1035e832693acbfc713bcaf44720efa8149e93a38027Dan Gohman /// is true if they are the same value, or if one is negative zero and the 1036e832693acbfc713bcaf44720efa8149e93a38027Dan Gohman /// other positive zero. 1037e832693acbfc713bcaf44720efa8149e93a38027Dan Gohman bool isEqualTo(SDValue A, SDValue B) const; 1038e832693acbfc713bcaf44720efa8149e93a38027Dan Gohman 1039cd6e725f21852e2f8cdf5fd0e65eb42c224776f8Mon P Wang /// UnrollVectorOp - Utility function used by legalize and lowering to 1040cd6e725f21852e2f8cdf5fd0e65eb42c224776f8Mon P Wang /// "unroll" a vector operation by splitting out the scalars and operating 1041cd6e725f21852e2f8cdf5fd0e65eb42c224776f8Mon P Wang /// on each element individually. If the ResNE is 0, fully unroll the vector 1042cd6e725f21852e2f8cdf5fd0e65eb42c224776f8Mon P Wang /// op. If ResNE is less than the width of the vector op, unroll up to ResNE. 1043cd6e725f21852e2f8cdf5fd0e65eb42c224776f8Mon P Wang /// If the ResNE is greater than the width of the vector op, unroll the 1044cd6e725f21852e2f8cdf5fd0e65eb42c224776f8Mon P Wang /// vector op and fill the end of the resulting vector with UNDEFS. 1045cd6e725f21852e2f8cdf5fd0e65eb42c224776f8Mon P Wang SDValue UnrollVectorOp(SDNode *N, unsigned ResNE = 0); 1046cd6e725f21852e2f8cdf5fd0e65eb42c224776f8Mon P Wang 10476154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson /// isConsecutiveLoad - Return true if LD is loading 'Bytes' bytes from a 10486154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson /// location that is 'Dist' units away from the location that the 'Base' load 104964fa4a9584113f63eccc1a650e7e0cc4ddbab3f6Evan Cheng /// is loading from. 105064fa4a9584113f63eccc1a650e7e0cc4ddbab3f6Evan Cheng bool isConsecutiveLoad(LoadSDNode *LD, LoadSDNode *Base, 105164fa4a9584113f63eccc1a650e7e0cc4ddbab3f6Evan Cheng unsigned Bytes, int Dist) const; 105264fa4a9584113f63eccc1a650e7e0cc4ddbab3f6Evan Cheng 1053f2dc5c785dea1816cbc064b58b4b6ea23c4fd7d4Evan Cheng /// InferPtrAlignment - Infer alignment of a load / store address. Return 0 if 1054f2dc5c785dea1816cbc064b58b4b6ea23c4fd7d4Evan Cheng /// it cannot be inferred. 10557ced2e0b304e76ab746c7d9a54ad8d4930445a38Evan Cheng unsigned InferPtrAlignment(SDValue Ptr) const; 1056f2dc5c785dea1816cbc064b58b4b6ea23c4fd7d4Evan Cheng 1057d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattnerprivate: 1058095cc29f321382e1f7d295e262a28197f92c5491Dan Gohman bool RemoveNodeFromCSEMaps(SDNode *N); 1059bc7d448f242b1bbc1031fb87cd69c285ff9aaffaJakob Stoklund Olesen void AddModifiedNodeToCSEMaps(SDNode *N); 1060475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDNode *FindModifiedNodeSlot(SDNode *N, SDValue Op, void *&InsertPos); 1061475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDNode *FindModifiedNodeSlot(SDNode *N, SDValue Op1, SDValue Op2, 1062a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner void *&InsertPos); 1063475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDNode *FindModifiedNodeSlot(SDNode *N, const SDValue *Ops, unsigned NumOps, 1064a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner void *&InsertPos); 10650508d047fefef36d4f943ee13c82c18cf3a943abDevang Patel SDNode *UpdadeDebugLocOnMergedSDNode(SDNode *N, DebugLoc loc); 1066b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner 1067fde3f3061d665babeb78443119a09876098fc35eChris Lattner void DeleteNodeNotInCSEMaps(SDNode *N); 1068c53361294957b63a9c1e405256c6f0a81db1685cDan Gohman void DeallocateNode(SDNode *N); 10699c6e70eca9a49c146b26621cbcbb9464ceeac024Dan Gohman 1070e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson unsigned getEVTAlignment(EVT MemoryVT) const; 1071f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman 1072f350b277f32d7d47f86c0e54f4aec4d470500618Dan Gohman void allnodes_clear(); 1073fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 1074101a90f3d3c3ad9159676ba744b59b3a9d0b4af5Dan Gohman /// VTList - List of non-single value types. 1075e8be6c63915e0389f1eef6b53c64300d13b2ce99Dan Gohman std::vector<SDVTList> VTList; 1076fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 1077101a90f3d3c3ad9159676ba744b59b3a9d0b4af5Dan Gohman /// CondCodeNodes - Maps to auto-CSE operations. 10787cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner std::vector<CondCodeSDNode*> CondCodeNodes; 10791cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 108015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner std::vector<SDNode*> ValueTypeNodes; 1081e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson std::map<EVT, SDNode*, EVT::compareRawBits> ExtendedValueTypeNodes; 1082056292fd738924f3f7703725d8f630983794b5a5Bill Wendling StringMap<SDNode*> ExternalSymbols; 10836154f6c9292179fab6346ae8336f2ad790b52028Owen Anderson 10841af2231da64a14d638406d133c7912bfc1c8a9ceChris Lattner std::map<std::pair<std::string, unsigned char>,SDNode*> TargetExternalSymbols; 1085cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner}; 1086cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 10871080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnertemplate <> struct GraphTraits<SelectionDAG*> : public GraphTraits<SDNode*> { 10881080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SelectionDAG::allnodes_iterator nodes_iterator; 10891080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_begin(SelectionDAG *G) { 10901080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_begin(); 10911080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 10921080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_end(SelectionDAG *G) { 10931080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_end(); 10941080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 10951080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 10961080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 1097b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner} // end namespace llvm 1098cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 1099cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#endif 1100