MachineFunction.cpp revision 9500e5d07ac9b94c8fed74150e444778a0dcb036
16b9445389a226b4ac97ceb89a34ee1a5bf921714Chris Lattner//===-- MachineFunction.cpp -----------------------------------------------===// 276d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos// 3b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// The LLVM Compiler Infrastructure 4b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 776d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos// 8b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell//===----------------------------------------------------------------------===// 976d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos// 106b9445389a226b4ac97ceb89a34ee1a5bf921714Chris Lattner// Collect native machine code information for a function. This allows 116b9445389a226b4ac97ceb89a34ee1a5bf921714Chris Lattner// target-specific information about the generated code to be stored with each 126b9445389a226b4ac97ceb89a34ee1a5bf921714Chris Lattner// function. 136b9445389a226b4ac97ceb89a34ee1a5bf921714Chris Lattner// 146b9445389a226b4ac97ceb89a34ee1a5bf921714Chris Lattner//===----------------------------------------------------------------------===// 15f2868ce228ca20f72d1c6fbe241de01975cfe609Chris Lattner 166b2760759b23b8b96beb43966b9b8088e832efc7Chris Lattner#include "llvm/CodeGen/MachineFunction.h" 17d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/ADT/STLExtras.h" 18d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/ADT/SmallString.h" 19d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Analysis/ConstantFolding.h" 2084bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/CodeGen/MachineConstantPool.h" 21eb24db9727a7babe863d5afe70c7bda3a460da18Chris Lattner#include "llvm/CodeGen/MachineFrameInfo.h" 22d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/CodeGen/MachineFunctionPass.h" 2384bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/CodeGen/MachineInstr.h" 2437efe6764568a3829fee26aba532283131d1a104Nate Begeman#include "llvm/CodeGen/MachineJumpTableInfo.h" 25820e55e9ad3cb3b17780e84863648e431b571d25Chris Lattner#include "llvm/CodeGen/MachineModuleInfo.h" 2684bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/CodeGen/MachineRegisterInfo.h" 2716c45e9de896ea37d48d093dbe02fc9a4c1b9f8fChris Lattner#include "llvm/CodeGen/Passes.h" 28d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/DataLayout.h" 29d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/DebugInfo.h" 30d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Function.h" 31beeb93e6ba48af2661eabc4872d8b159fb43e5dbChris Lattner#include "llvm/MC/MCAsmInfo.h" 32beeb93e6ba48af2661eabc4872d8b159fb43e5dbChris Lattner#include "llvm/MC/MCContext.h" 33dc55481841d5ac060c279a61c944f192ad9bb23eDavid Greene#include "llvm/Support/Debug.h" 34f28bbda2c6c965dbd28e73e06c9e09231a77b0dcChris Lattner#include "llvm/Support/GraphWriter.h" 35944fac71e082cc2664cc71b4d3f6c72bab7143fbChris Lattner#include "llvm/Support/raw_ostream.h" 36d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Target/TargetFrameLowering.h" 37d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Target/TargetLowering.h" 38d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Target/TargetMachine.h" 3907f32d48f1e16bcdc621985549548a5849215238Chris Lattnerusing namespace llvm; 40f2868ce228ca20f72d1c6fbe241de01975cfe609Chris Lattner 41b84822fb7b64977c16e97b870891da1d6c9736feChris Lattner//===----------------------------------------------------------------------===// 42227c3d355b017393963a690f9f27d1de7fa359bcChris Lattner// MachineFunction implementation 43b84822fb7b64977c16e97b870891da1d6c9736feChris Lattner//===----------------------------------------------------------------------===// 449d5d7598db72c00a0fb89dc77198e4f6ebc5294dChris Lattner 45a70e2e3d4831b8a39ea6bae5c62df29fa82a86f3Chris Lattner// Out of line virtual method. 46a70e2e3d4831b8a39ea6bae5c62df29fa82a86f3Chris LattnerMachineFunctionInfo::~MachineFunctionInfo() {} 47a70e2e3d4831b8a39ea6bae5c62df29fa82a86f3Chris Lattner 48fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohmanvoid ilist_traits<MachineBasicBlock>::deleteNode(MachineBasicBlock *MBB) { 498e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman MBB->getParent()->DeleteMachineBasicBlock(MBB); 50792699c46ef9bfc47dd459bbfa7e71bcb2cee29aTanya Lattner} 51227c3d355b017393963a690f9f27d1de7fa359bcChris Lattner 52ae541aad5c36cb3e4256514447d1f81e253079c7Dan GohmanMachineFunction::MachineFunction(const Function *F, const TargetMachine &TM, 537a5a3f75eb6751c35682f506887c34bf57d6ea3eNicolas Geoffray unsigned FunctionNum, MachineModuleInfo &mmi, 547a5a3f75eb6751c35682f506887c34bf57d6ea3eNicolas Geoffray GCModuleInfo* gmi) 557a5a3f75eb6751c35682f506887c34bf57d6ea3eNicolas Geoffray : Fn(F), Target(TM), Ctx(mmi.getContext()), MMI(mmi), GMI(gmi) { 56e2b997b7b5360b4793c524a801e988fd37b80b93Matthijs Kooijman if (TM.getRegisterInfo()) 579553188fccbf0ae9c5b6bef26d0d2bd5feff8b59Dan Gohman RegInfo = new (Allocator) MachineRegisterInfo(*TM.getRegisterInfo()); 58e2b997b7b5360b4793c524a801e988fd37b80b93Matthijs Kooijman else 59e2b997b7b5360b4793c524a801e988fd37b80b93Matthijs Kooijman RegInfo = 0; 60ad8281607f066c2cce5c3625009d8ee0761dbf35Chris Lattner MFInfo = 0; 6169261a644298bff1497d46c8cd38d688670f307bManman Ren FrameInfo = new (Allocator) MachineFrameInfo(*TM.getFrameLowering(), 6269261a644298bff1497d46c8cd38d688670f307bManman Ren TM.Options.RealignStack); 63034b94b17006f51722886b0f2283fb6fb19aca1fBill Wendling if (Fn->getFnAttributes().hasAttribute(Attribute::StackAlignment)) 64ef99fe8efaa6cb74c66e570a6ef467debca92911Bill Wendling FrameInfo->ensureMaxAlignment(Fn->getAttributes(). 65ef99fe8efaa6cb74c66e570a6ef467debca92911Bill Wendling getFnAttributes().getStackAlignment()); 663574eca1b02600bac4e625297f4ecf745f4c4f32Micah Villmow ConstantPool = new (Allocator) MachineConstantPool(TM.getDataLayout()); 67fc5d305597ea6336d75bd7f3b741e8d57d6a5105Eli Friedman Alignment = TM.getTargetLowering()->getMinFunctionAlignment(); 68fc5d305597ea6336d75bd7f3b741e8d57d6a5105Eli Friedman // FIXME: Shouldn't use pref alignment if explicit alignment is set on Fn. 69034b94b17006f51722886b0f2283fb6fb19aca1fBill Wendling if (!Fn->getFnAttributes().hasAttribute(Attribute::OptimizeForSize)) 70fc5d305597ea6336d75bd7f3b741e8d57d6a5105Eli Friedman Alignment = std::max(Alignment, 71fc5d305597ea6336d75bd7f3b741e8d57d6a5105Eli Friedman TM.getTargetLowering()->getPrefFunctionAlignment()); 72b84822fb7b64977c16e97b870891da1d6c9736feChris Lattner FunctionNumber = FunctionNum; 73071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner JumpTableInfo = 0; 74831fdcf0177a4eef66129cd6fb4138922c492bf0Chris Lattner} 75831fdcf0177a4eef66129cd6fb4138922c492bf0Chris Lattner 7676d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis EvlogimenosMachineFunction::~MachineFunction() { 774b9a4006748b8d72a04504a5fc1f5daa73bf69f9Chris Lattner BasicBlocks.clear(); 788e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman InstructionRecycler.clear(Allocator); 798e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman BasicBlockRecycler.clear(Allocator); 80dd37b360d7ecc95b4a077bb64cca22b764788751Bill Wendling if (RegInfo) { 81dd37b360d7ecc95b4a077bb64cca22b764788751Bill Wendling RegInfo->~MachineRegisterInfo(); 82dd37b360d7ecc95b4a077bb64cca22b764788751Bill Wendling Allocator.Deallocate(RegInfo); 83dd37b360d7ecc95b4a077bb64cca22b764788751Bill Wendling } 848e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman if (MFInfo) { 85dd37b360d7ecc95b4a077bb64cca22b764788751Bill Wendling MFInfo->~MachineFunctionInfo(); 86dd37b360d7ecc95b4a077bb64cca22b764788751Bill Wendling Allocator.Deallocate(MFInfo); 878e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman } 880c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 890c1eac8129f7e4e637074a482a085448e1680199Chad Rosier FrameInfo->~MachineFrameInfo(); 900c1eac8129f7e4e637074a482a085448e1680199Chad Rosier Allocator.Deallocate(FrameInfo); 910c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 920c1eac8129f7e4e637074a482a085448e1680199Chad Rosier ConstantPool->~MachineConstantPool(); 930c1eac8129f7e4e637074a482a085448e1680199Chad Rosier Allocator.Deallocate(ConstantPool); 940c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 95071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner if (JumpTableInfo) { 96071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner JumpTableInfo->~MachineJumpTableInfo(); 97071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner Allocator.Deallocate(JumpTableInfo); 98071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner } 991049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 1001049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 101071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner/// getOrCreateJumpTableInfo - Get the JumpTableInfo for this function, if it 102071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner/// does already exist, allocate one. 103071c62fad0b25ad4131e7f984173a796c1e63f61Chris LattnerMachineJumpTableInfo *MachineFunction:: 104071c62fad0b25ad4131e7f984173a796c1e63f61Chris LattnergetOrCreateJumpTableInfo(unsigned EntryKind) { 105071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner if (JumpTableInfo) return JumpTableInfo; 1060c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 1079553188fccbf0ae9c5b6bef26d0d2bd5feff8b59Dan Gohman JumpTableInfo = new (Allocator) 108071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner MachineJumpTableInfo((MachineJumpTableInfo::JTEntryKind)EntryKind); 109071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner return JumpTableInfo; 110071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner} 111e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner 112e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner/// RenumberBlocks - This discards all of the MachineBasicBlock numbers and 113e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner/// recomputes them. This guarantees that the MBB numbers are sequential, 114e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner/// dense, and match the ordering of the blocks within the function. If a 115e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner/// specific MachineBasicBlock is specified, only that block and those after 116e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner/// it are renumbered. 117e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattnervoid MachineFunction::RenumberBlocks(MachineBasicBlock *MBB) { 118e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner if (empty()) { MBBNumbering.clear(); return; } 119e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner MachineFunction::iterator MBBI, E = end(); 120e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner if (MBB == 0) 121e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner MBBI = begin(); 122e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner else 123e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner MBBI = MBB; 1240c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 125e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner // Figure out the block number this should have. 126e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner unsigned BlockNo = 0; 127f28bbda2c6c965dbd28e73e06c9e09231a77b0dcChris Lattner if (MBBI != begin()) 128f28bbda2c6c965dbd28e73e06c9e09231a77b0dcChris Lattner BlockNo = prior(MBBI)->getNumber()+1; 1290c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 130e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner for (; MBBI != E; ++MBBI, ++BlockNo) { 131e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner if (MBBI->getNumber() != (int)BlockNo) { 132e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner // Remove use of the old number. 133e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner if (MBBI->getNumber() != -1) { 134e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner assert(MBBNumbering[MBBI->getNumber()] == &*MBBI && 135e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner "MBB number mismatch!"); 136e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner MBBNumbering[MBBI->getNumber()] = 0; 137e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner } 1380c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 139e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner // If BlockNo is already taken, set that block's number to -1. 140e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner if (MBBNumbering[BlockNo]) 141e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner MBBNumbering[BlockNo]->setNumber(-1); 142e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner 143e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner MBBNumbering[BlockNo] = MBBI; 144e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner MBBI->setNumber(BlockNo); 145e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner } 1460c1eac8129f7e4e637074a482a085448e1680199Chad Rosier } 147e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner 148e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner // Okay, all the blocks are renumbered. If we have compactified the block 149e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner // numbering, shrink MBBNumbering now. 150e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner assert(BlockNo <= MBBNumbering.size() && "Mismatch!"); 151e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner MBBNumbering.resize(BlockNo); 152e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner} 153e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner 1548e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// CreateMachineInstr - Allocate a new MachineInstr. Use this instead 1558e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// of `new MachineInstr'. 1568e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// 1578e5f2c6f65841542e2a7092553fe42a00048e4c7Dan GohmanMachineInstr * 158e837dead3c8dc3445ef6a0e2322179c57e264a13Evan ChengMachineFunction::CreateMachineInstr(const MCInstrDesc &MCID, 1599bc96a57206cbebaa9b0ba9979f949eb10c1592cBill Wendling DebugLoc DL, bool NoImp) { 1608e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman return new (InstructionRecycler.Allocate<MachineInstr>(Allocator)) 1619500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesen MachineInstr(*this, MCID, DL, NoImp); 1628e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 1638e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 1648e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// CloneMachineInstr - Create a new MachineInstr which is a copy of the 165f451cb870efcf9e0302d25ed05f4cac6bb494e42Dan Gohman/// 'Orig' instruction, identical in all ways except the instruction 1668e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// has no parent, prev, or next. 1678e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// 1688e5f2c6f65841542e2a7092553fe42a00048e4c7Dan GohmanMachineInstr * 1698e5f2c6f65841542e2a7092553fe42a00048e4c7Dan GohmanMachineFunction::CloneMachineInstr(const MachineInstr *Orig) { 1708e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman return new (InstructionRecycler.Allocate<MachineInstr>(Allocator)) 1718e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman MachineInstr(*this, *Orig); 1728e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 1738e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 1748e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// DeleteMachineInstr - Delete the given MachineInstr. 1758e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// 1768e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid 1778e5f2c6f65841542e2a7092553fe42a00048e4c7Dan GohmanMachineFunction::DeleteMachineInstr(MachineInstr *MI) { 1788e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman MI->~MachineInstr(); 1798e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman InstructionRecycler.Deallocate(Allocator, MI); 1808e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 1818e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 1828e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// CreateMachineBasicBlock - Allocate a new MachineBasicBlock. Use this 1838e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// instead of `new MachineBasicBlock'. 1848e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// 1858e5f2c6f65841542e2a7092553fe42a00048e4c7Dan GohmanMachineBasicBlock * 1868e5f2c6f65841542e2a7092553fe42a00048e4c7Dan GohmanMachineFunction::CreateMachineBasicBlock(const BasicBlock *bb) { 1878e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman return new (BasicBlockRecycler.Allocate<MachineBasicBlock>(Allocator)) 1888e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman MachineBasicBlock(*this, bb); 1898e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 190e70cab0ca4d7835c8e1e0ee6a125be8f2790a136Chris Lattner 1918e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// DeleteMachineBasicBlock - Delete the given MachineBasicBlock. 1928e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// 1938e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid 1948e5f2c6f65841542e2a7092553fe42a00048e4c7Dan GohmanMachineFunction::DeleteMachineBasicBlock(MachineBasicBlock *MBB) { 1958e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(MBB->getParent() == this && "MBB parent mismatch!"); 1968e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman MBB->~MachineBasicBlock(); 1978e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman BasicBlockRecycler.Deallocate(Allocator, MBB); 1988e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 1998e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 200c76909abfec876c6b751d693ebd3df07df686aa0Dan GohmanMachineMemOperand * 201da39c3964423744b4d79aebef8bece3e9141d5fcChris LattnerMachineFunction::getMachineMemOperand(MachinePointerInfo PtrInfo, unsigned f, 202f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman uint64_t s, unsigned base_alignment, 20395d594cac3737ae1594a391276942a443cac426bRafael Espindola const MDNode *TBAAInfo, 20495d594cac3737ae1594a391276942a443cac426bRafael Espindola const MDNode *Ranges) { 205f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman return new (Allocator) MachineMemOperand(PtrInfo, f, s, base_alignment, 20695d594cac3737ae1594a391276942a443cac426bRafael Espindola TBAAInfo, Ranges); 207c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 208c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 209c76909abfec876c6b751d693ebd3df07df686aa0Dan GohmanMachineMemOperand * 210c76909abfec876c6b751d693ebd3df07df686aa0Dan GohmanMachineFunction::getMachineMemOperand(const MachineMemOperand *MMO, 211c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman int64_t Offset, uint64_t Size) { 2129553188fccbf0ae9c5b6bef26d0d2bd5feff8b59Dan Gohman return new (Allocator) 213da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner MachineMemOperand(MachinePointerInfo(MMO->getValue(), 214da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner MMO->getOffset()+Offset), 215f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman MMO->getFlags(), Size, 216f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman MMO->getBaseAlignment(), 0); 217c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 218c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 219c76909abfec876c6b751d693ebd3df07df686aa0Dan GohmanMachineInstr::mmo_iterator 220c76909abfec876c6b751d693ebd3df07df686aa0Dan GohmanMachineFunction::allocateMemRefsArray(unsigned long Num) { 221c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman return Allocator.Allocate<MachineMemOperand *>(Num); 222c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 223c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 22491e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohmanstd::pair<MachineInstr::mmo_iterator, MachineInstr::mmo_iterator> 22591e69c37153eb7d8cd149d9c2484c3115027b90fDan GohmanMachineFunction::extractLoadMemRefs(MachineInstr::mmo_iterator Begin, 22691e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman MachineInstr::mmo_iterator End) { 22791e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman // Count the number of load mem refs. 22891e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman unsigned Num = 0; 22991e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman for (MachineInstr::mmo_iterator I = Begin; I != End; ++I) 23091e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman if ((*I)->isLoad()) 23191e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman ++Num; 23291e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman 23391e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman // Allocate a new array and populate it with the load information. 23491e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman MachineInstr::mmo_iterator Result = allocateMemRefsArray(Num); 23591e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman unsigned Index = 0; 23691e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman for (MachineInstr::mmo_iterator I = Begin; I != End; ++I) { 23791e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman if ((*I)->isLoad()) { 23891e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman if (!(*I)->isStore()) 23991e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman // Reuse the MMO. 24091e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman Result[Index] = *I; 24191e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman else { 24291e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman // Clone the MMO and unset the store flag. 24391e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman MachineMemOperand *JustLoad = 24493a95ae8a9d8eb19dc0d90281473be2fb1c05a17Chris Lattner getMachineMemOperand((*I)->getPointerInfo(), 24591e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman (*I)->getFlags() & ~MachineMemOperand::MOStore, 246f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman (*I)->getSize(), (*I)->getBaseAlignment(), 247f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman (*I)->getTBAAInfo()); 24891e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman Result[Index] = JustLoad; 24991e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman } 25091e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman ++Index; 25191e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman } 25291e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman } 25391e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman return std::make_pair(Result, Result + Num); 25491e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman} 25591e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman 25691e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohmanstd::pair<MachineInstr::mmo_iterator, MachineInstr::mmo_iterator> 25791e69c37153eb7d8cd149d9c2484c3115027b90fDan GohmanMachineFunction::extractStoreMemRefs(MachineInstr::mmo_iterator Begin, 25891e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman MachineInstr::mmo_iterator End) { 25991e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman // Count the number of load mem refs. 26091e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman unsigned Num = 0; 26191e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman for (MachineInstr::mmo_iterator I = Begin; I != End; ++I) 26291e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman if ((*I)->isStore()) 26391e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman ++Num; 26491e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman 26591e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman // Allocate a new array and populate it with the store information. 26691e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman MachineInstr::mmo_iterator Result = allocateMemRefsArray(Num); 26791e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman unsigned Index = 0; 26891e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman for (MachineInstr::mmo_iterator I = Begin; I != End; ++I) { 26991e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman if ((*I)->isStore()) { 27091e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman if (!(*I)->isLoad()) 27191e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman // Reuse the MMO. 27291e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman Result[Index] = *I; 27391e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman else { 27491e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman // Clone the MMO and unset the load flag. 27591e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman MachineMemOperand *JustStore = 27693a95ae8a9d8eb19dc0d90281473be2fb1c05a17Chris Lattner getMachineMemOperand((*I)->getPointerInfo(), 27791e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman (*I)->getFlags() & ~MachineMemOperand::MOLoad, 278f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman (*I)->getSize(), (*I)->getBaseAlignment(), 279f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman (*I)->getTBAAInfo()); 28091e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman Result[Index] = JustStore; 28191e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman } 28291e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman ++Index; 28391e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman } 28491e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman } 28591e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman return std::make_pair(Result, Result + Num); 28691e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman} 28791e69c37153eb7d8cd149d9c2484c3115027b90fDan Gohman 288b720be6a50f4e1b3280d2b029ee38dda14577525Manman Ren#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) 2898e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineFunction::dump() const { 290dc55481841d5ac060c279a61c944f192ad9bb23eDavid Greene print(dbgs()); 2918e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 29277e300e8f0b8db8eec448cae9c87d7c5bfad9757Manman Ren#endif 2931049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 29496601ca332ab388754ca4673be8973396fea2dddCraig TopperStringRef MachineFunction::getName() const { 29596601ca332ab388754ca4673be8973396fea2dddCraig Topper assert(getFunction() && "No function!"); 29696601ca332ab388754ca4673be8973396fea2dddCraig Topper return getFunction()->getName(); 29796601ca332ab388754ca4673be8973396fea2dddCraig Topper} 29896601ca332ab388754ca4673be8973396fea2dddCraig Topper 299f4a1e1a69f0727762a73ef0d551e3bbd16b7c04eJakob Stoklund Olesenvoid MachineFunction::print(raw_ostream &OS, SlotIndexes *Indexes) const { 300986d76d7b3844b9a2f3d01a48975952749267a93David Blaikie OS << "# Machine code for function " << getName() << ": "; 3011f141684cfe382b47db55b6ef1fb4fd62886b3c6Jakob Stoklund Olesen if (RegInfo) { 3021f141684cfe382b47db55b6ef1fb4fd62886b3c6Jakob Stoklund Olesen OS << (RegInfo->isSSA() ? "SSA" : "Post SSA"); 3031f141684cfe382b47db55b6ef1fb4fd62886b3c6Jakob Stoklund Olesen if (!RegInfo->tracksLiveness()) 3041f141684cfe382b47db55b6ef1fb4fd62886b3c6Jakob Stoklund Olesen OS << ", not tracking liveness"; 3051f141684cfe382b47db55b6ef1fb4fd62886b3c6Jakob Stoklund Olesen } 3061f141684cfe382b47db55b6ef1fb4fd62886b3c6Jakob Stoklund Olesen OS << '\n'; 307955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner 308955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner // Print Frame Information 3098e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman FrameInfo->print(*this, OS); 3100c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 31137efe6764568a3829fee26aba532283131d1a104Nate Begeman // Print JumpTable Information 312071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner if (JumpTableInfo) 313071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner JumpTableInfo->print(OS); 3144d149cdae1553426f49623fdae215d481d56d955Chris Lattner 3154d149cdae1553426f49623fdae215d481d56d955Chris Lattner // Print Constant Pool 316d74c556e9aaad81a188158b7ba12d7ccffb30936Chris Lattner ConstantPool->print(OS); 3170c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 3186f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *TRI = getTarget().getRegisterInfo(); 3190c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 320e2b997b7b5360b4793c524a801e988fd37b80b93Matthijs Kooijman if (RegInfo && !RegInfo->livein_empty()) { 3210ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "Function Live Ins: "; 32284bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner for (MachineRegisterInfo::livein_iterator 32384bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner I = RegInfo->livein_begin(), E = RegInfo->livein_end(); I != E; ++I) { 324e2f669fb3fa7a6bee4196999b119a98f31c072a3Jakob Stoklund Olesen OS << PrintReg(I->first, TRI); 3254e92027837136233db0fc1c1a4fa2bc456d74de3Chris Lattner if (I->second) 326e2f669fb3fa7a6bee4196999b119a98f31c072a3Jakob Stoklund Olesen OS << " in " << PrintReg(I->second, TRI); 3277896c9f436a4eda5ec15e882a7505ba482a2fcd0Chris Lattner if (llvm::next(I) != E) 3280ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << ", "; 329a1f68ca94e763945f9accc75768a55a84bae6cfbChris Lattner } 330d74c556e9aaad81a188158b7ba12d7ccffb30936Chris Lattner OS << '\n'; 331a1f68ca94e763945f9accc75768a55a84bae6cfbChris Lattner } 332e2b997b7b5360b4793c524a801e988fd37b80b93Matthijs Kooijman if (RegInfo && !RegInfo->liveout_empty()) { 333e2f669fb3fa7a6bee4196999b119a98f31c072a3Jakob Stoklund Olesen OS << "Function Live Outs:"; 33484bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner for (MachineRegisterInfo::liveout_iterator 335e2f669fb3fa7a6bee4196999b119a98f31c072a3Jakob Stoklund Olesen I = RegInfo->liveout_begin(), E = RegInfo->liveout_end(); I != E; ++I) 336e2f669fb3fa7a6bee4196999b119a98f31c072a3Jakob Stoklund Olesen OS << ' ' << PrintReg(*I, TRI); 337d74c556e9aaad81a188158b7ba12d7ccffb30936Chris Lattner OS << '\n'; 338a1f68ca94e763945f9accc75768a55a84bae6cfbChris Lattner } 3390c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 3400ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman for (const_iterator BB = begin(), E = end(); BB != E; ++BB) { 3410ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << '\n'; 342f4a1e1a69f0727762a73ef0d551e3bbd16b7c04eJakob Stoklund Olesen BB->print(OS, Indexes); 3430ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman } 34447b716483ef2d057c8a0015af20685755e606d0dBrian Gaeke 345986d76d7b3844b9a2f3d01a48975952749267a93David Blaikie OS << "\n# End machine code for function " << getName() << ".\n\n"; 3461049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 3471049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 34871bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenosnamespace llvm { 34976d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos template<> 35076d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos struct DOTGraphTraits<const MachineFunction*> : public DefaultDOTGraphTraits { 351a10d598602308549d87d2c5d9848f5a72fda2b43Tobias Grosser 352a10d598602308549d87d2c5d9848f5a72fda2b43Tobias Grosser DOTGraphTraits (bool isSimple=false) : DefaultDOTGraphTraits(isSimple) {} 353a10d598602308549d87d2c5d9848f5a72fda2b43Tobias Grosser 35476d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos static std::string getGraphName(const MachineFunction *F) { 35596601ca332ab388754ca4673be8973396fea2dddCraig Topper return "CFG for '" + F->getName().str() + "' function"; 35676d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos } 35771bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenos 35856f4ef3232850e29c4635d0923910acce8887bd0Tobias Grosser std::string getNodeLabel(const MachineBasicBlock *Node, 35956f4ef3232850e29c4635d0923910acce8887bd0Tobias Grosser const MachineFunction *Graph) { 360cf143a4d917699f8f4202f331fa9e184070471fbChris Lattner std::string OutStr; 361cf143a4d917699f8f4202f331fa9e184070471fbChris Lattner { 362cf143a4d917699f8f4202f331fa9e184070471fbChris Lattner raw_string_ostream OSS(OutStr); 363e5f4e9fb2be8525a8ca16bd4719665ed7402b55bJakob Stoklund Olesen 364e5f4e9fb2be8525a8ca16bd4719665ed7402b55bJakob Stoklund Olesen if (isSimple()) { 365e5f4e9fb2be8525a8ca16bd4719665ed7402b55bJakob Stoklund Olesen OSS << "BB#" << Node->getNumber(); 366e5f4e9fb2be8525a8ca16bd4719665ed7402b55bJakob Stoklund Olesen if (const BasicBlock *BB = Node->getBasicBlock()) 367e5f4e9fb2be8525a8ca16bd4719665ed7402b55bJakob Stoklund Olesen OSS << ": " << BB->getName(); 368e5f4e9fb2be8525a8ca16bd4719665ed7402b55bJakob Stoklund Olesen } else 369cf143a4d917699f8f4202f331fa9e184070471fbChris Lattner Node->print(OSS); 37076d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos } 37171bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenos 37276d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos if (OutStr[0] == '\n') OutStr.erase(OutStr.begin()); 37371bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenos 37476d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos // Process string output to make it nicer... 37576d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos for (unsigned i = 0; i != OutStr.length(); ++i) 37676d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos if (OutStr[i] == '\n') { // Left justify 37776d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos OutStr[i] = '\\'; 37876d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos OutStr.insert(OutStr.begin()+i+1, 'l'); 37976d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos } 38076d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos return OutStr; 38176d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos } 38276d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos }; 38371bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenos} 38471bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenos 38571bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenosvoid MachineFunction::viewCFG() const 38671bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenos{ 387851a22db2bdbcab1768a87c4f02b5972e48db5edJim Laskey#ifndef NDEBUG 388986d76d7b3844b9a2f3d01a48975952749267a93David Blaikie ViewGraph(this, "mf" + getName()); 3899d5b532de9bdca37810a59a93a69128441b02c55Reid Spencer#else 390643fffe429cc467584c795f6177741944729e0a5Dan Gohman errs() << "MachineFunction::viewCFG is only available in debug builds on " 39143ed267db3512823a9698f810be4e64bee227270Daniel Dunbar << "systems with Graphviz or gv!\n"; 3929d5b532de9bdca37810a59a93a69128441b02c55Reid Spencer#endif // NDEBUG 39371bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenos} 39471bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenos 39571bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenosvoid MachineFunction::viewCFGOnly() const 39671bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenos{ 3978cbc94afb71fd2da72d8f1284f7f53e39019fdecOwen Anderson#ifndef NDEBUG 398986d76d7b3844b9a2f3d01a48975952749267a93David Blaikie ViewGraph(this, "mf" + getName(), true); 3998cbc94afb71fd2da72d8f1284f7f53e39019fdecOwen Anderson#else 400643fffe429cc467584c795f6177741944729e0a5Dan Gohman errs() << "MachineFunction::viewCFGOnly is only available in debug builds on " 40143ed267db3512823a9698f810be4e64bee227270Daniel Dunbar << "systems with Graphviz or gv!\n"; 4028cbc94afb71fd2da72d8f1284f7f53e39019fdecOwen Anderson#endif // NDEBUG 40371bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenos} 40471bf404e9b69122c276ad7ce66f38bf1e57cafebAlkis Evlogimenos 405998e125a87d49f28c714d8223a37746850401057Bob Wilson/// addLiveIn - Add the specified physical register as a live-in value and 406998e125a87d49f28c714d8223a37746850401057Bob Wilson/// create a corresponding virtual register for it. 407998e125a87d49f28c714d8223a37746850401057Bob Wilsonunsigned MachineFunction::addLiveIn(unsigned PReg, 40868e6beeccc0b9ac2e8d3687a8a5b7d4b172edca1Devang Patel const TargetRegisterClass *RC) { 4093946043a80a043b3cf43b34bf068feaadc46485bEvan Cheng MachineRegisterInfo &MRI = getRegInfo(); 4103946043a80a043b3cf43b34bf068feaadc46485bEvan Cheng unsigned VReg = MRI.getLiveInVirtReg(PReg); 4113946043a80a043b3cf43b34bf068feaadc46485bEvan Cheng if (VReg) { 4123946043a80a043b3cf43b34bf068feaadc46485bEvan Cheng assert(MRI.getRegClass(VReg) == RC && "Register class mismatch!"); 4133946043a80a043b3cf43b34bf068feaadc46485bEvan Cheng return VReg; 4143946043a80a043b3cf43b34bf068feaadc46485bEvan Cheng } 4153946043a80a043b3cf43b34bf068feaadc46485bEvan Cheng VReg = MRI.createVirtualRegister(RC); 4163946043a80a043b3cf43b34bf068feaadc46485bEvan Cheng MRI.addLiveIn(PReg, VReg); 417998e125a87d49f28c714d8223a37746850401057Bob Wilson return VReg; 418998e125a87d49f28c714d8223a37746850401057Bob Wilson} 419998e125a87d49f28c714d8223a37746850401057Bob Wilson 420589c6f620e8dcf3d59af1ae0e15372c934647c82Chris Lattner/// getJTISymbol - Return the MCSymbol for the specified non-empty jump table. 42107d317711781d8c9268f7d6afcf1ba7eadf1d127Bill Wendling/// If isLinkerPrivate is specified, an 'l' label is returned, otherwise a 42207d317711781d8c9268f7d6afcf1ba7eadf1d127Bill Wendling/// normal 'L' label is returned. 42307d317711781d8c9268f7d6afcf1ba7eadf1d127Bill WendlingMCSymbol *MachineFunction::getJTISymbol(unsigned JTI, MCContext &Ctx, 42407d317711781d8c9268f7d6afcf1ba7eadf1d127Bill Wendling bool isLinkerPrivate) const { 425589c6f620e8dcf3d59af1ae0e15372c934647c82Chris Lattner assert(JumpTableInfo && "No jump tables"); 426de4c08008a10aba59171c56086d96c760990a4cbChandler Carruth assert(JTI < JumpTableInfo->getJumpTables().size() && "Invalid JTI!"); 427589c6f620e8dcf3d59af1ae0e15372c934647c82Chris Lattner const MCAsmInfo &MAI = *getTarget().getMCAsmInfo(); 4280c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 42907d317711781d8c9268f7d6afcf1ba7eadf1d127Bill Wendling const char *Prefix = isLinkerPrivate ? MAI.getLinkerPrivateGlobalPrefix() : 43007d317711781d8c9268f7d6afcf1ba7eadf1d127Bill Wendling MAI.getPrivateGlobalPrefix(); 431589c6f620e8dcf3d59af1ae0e15372c934647c82Chris Lattner SmallString<60> Name; 432589c6f620e8dcf3d59af1ae0e15372c934647c82Chris Lattner raw_svector_ostream(Name) 433589c6f620e8dcf3d59af1ae0e15372c934647c82Chris Lattner << Prefix << "JTI" << getFunctionNumber() << '_' << JTI; 4349b97a73dedf736e14b04a3d1a153f10d25b2507bChris Lattner return Ctx.GetOrCreateSymbol(Name.str()); 435589c6f620e8dcf3d59af1ae0e15372c934647c82Chris Lattner} 436589c6f620e8dcf3d59af1ae0e15372c934647c82Chris Lattner 437142b531e024c7b814df74951b378b9e3e11d0d42Chris Lattner/// getPICBaseSymbol - Return a function-local symbol to represent the PIC 438142b531e024c7b814df74951b378b9e3e11d0d42Chris Lattner/// base. 439142b531e024c7b814df74951b378b9e3e11d0d42Chris LattnerMCSymbol *MachineFunction::getPICBaseSymbol() const { 440142b531e024c7b814df74951b378b9e3e11d0d42Chris Lattner const MCAsmInfo &MAI = *Target.getMCAsmInfo(); 441142b531e024c7b814df74951b378b9e3e11d0d42Chris Lattner return Ctx.GetOrCreateSymbol(Twine(MAI.getPrivateGlobalPrefix())+ 442142b531e024c7b814df74951b378b9e3e11d0d42Chris Lattner Twine(getFunctionNumber())+"$pb"); 443142b531e024c7b814df74951b378b9e3e11d0d42Chris Lattner} 444589c6f620e8dcf3d59af1ae0e15372c934647c82Chris Lattner 445955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner//===----------------------------------------------------------------------===// 446eb24db9727a7babe863d5afe70c7bda3a460da18Chris Lattner// MachineFrameInfo implementation 447955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner//===----------------------------------------------------------------------===// 448955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner 449dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// ensureMaxAlignment - Make sure the function is at least Align bytes 450dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// aligned. 451dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Renvoid MachineFrameInfo::ensureMaxAlignment(unsigned Align) { 45269261a644298bff1497d46c8cd38d688670f307bManman Ren if (!TFI.isStackRealignable() || !RealignOption) 45369261a644298bff1497d46c8cd38d688670f307bManman Ren assert(Align <= TFI.getStackAlignment() && 45469261a644298bff1497d46c8cd38d688670f307bManman Ren "For targets without stack realignment, Align is out of limit!"); 455dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren if (MaxAlignment < Align) MaxAlignment = Align; 456dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren} 457dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren 45869261a644298bff1497d46c8cd38d688670f307bManman Ren/// clampStackAlignment - Clamp the alignment if requested and emit a warning. 45969261a644298bff1497d46c8cd38d688670f307bManman Renstatic inline unsigned clampStackAlignment(bool ShouldClamp, unsigned Align, 46069261a644298bff1497d46c8cd38d688670f307bManman Ren unsigned StackAlign) { 46169261a644298bff1497d46c8cd38d688670f307bManman Ren if (!ShouldClamp || Align <= StackAlign) 46269261a644298bff1497d46c8cd38d688670f307bManman Ren return Align; 46369261a644298bff1497d46c8cd38d688670f307bManman Ren DEBUG(dbgs() << "Warning: requested alignment " << Align 46469261a644298bff1497d46c8cd38d688670f307bManman Ren << " exceeds the stack alignment " << StackAlign 46569261a644298bff1497d46c8cd38d688670f307bManman Ren << " when stack realignment is off" << '\n'); 46669261a644298bff1497d46c8cd38d688670f307bManman Ren return StackAlign; 46769261a644298bff1497d46c8cd38d688670f307bManman Ren} 46869261a644298bff1497d46c8cd38d688670f307bManman Ren 469dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// CreateStackObject - Create a new statically sized stack object, returning 470dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// a nonnegative identifier to represent it. 471dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// 472dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Renint MachineFrameInfo::CreateStackObject(uint64_t Size, unsigned Alignment, 473dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren bool isSS, bool MayNeedSP, const AllocaInst *Alloca) { 474dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren assert(Size != 0 && "Cannot allocate zero size stack objects!"); 47569261a644298bff1497d46c8cd38d688670f307bManman Ren Alignment = clampStackAlignment(!TFI.isStackRealignable() || !RealignOption, 47669261a644298bff1497d46c8cd38d688670f307bManman Ren Alignment, TFI.getStackAlignment()); 477dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren Objects.push_back(StackObject(Size, Alignment, 0, false, isSS, MayNeedSP, 478dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren Alloca)); 479dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren int Index = (int)Objects.size() - NumFixedObjects - 1; 480dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren assert(Index >= 0 && "Bad frame index!"); 481dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren ensureMaxAlignment(Alignment); 482dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren return Index; 483dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren} 484dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren 485dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// CreateSpillStackObject - Create a new statically sized stack object that 486dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// represents a spill slot, returning a nonnegative identifier to represent 487dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// it. 488dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// 489dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Renint MachineFrameInfo::CreateSpillStackObject(uint64_t Size, 490dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren unsigned Alignment) { 49169261a644298bff1497d46c8cd38d688670f307bManman Ren Alignment = clampStackAlignment(!TFI.isStackRealignable() || !RealignOption, 49269261a644298bff1497d46c8cd38d688670f307bManman Ren Alignment, TFI.getStackAlignment()); 493dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren CreateStackObject(Size, Alignment, true, false); 494dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren int Index = (int)Objects.size() - NumFixedObjects - 1; 495dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren ensureMaxAlignment(Alignment); 496dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren return Index; 497dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren} 498dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren 499dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// CreateVariableSizedObject - Notify the MachineFrameInfo object that a 500dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// variable sized object has been created. This must be created whenever a 501dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// variable sized object is created, whether or not the index returned is 502dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// actually used. 503dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren/// 504dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Renint MachineFrameInfo::CreateVariableSizedObject(unsigned Alignment) { 505dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren HasVarSizedObjects = true; 50669261a644298bff1497d46c8cd38d688670f307bManman Ren Alignment = clampStackAlignment(!TFI.isStackRealignable() || !RealignOption, 50769261a644298bff1497d46c8cd38d688670f307bManman Ren Alignment, TFI.getStackAlignment()); 508dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren Objects.push_back(StackObject(0, Alignment, 0, false, false, true, 0)); 509dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren ensureMaxAlignment(Alignment); 510dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren return (int)Objects.size()-NumFixedObjects-1; 511dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren} 512dc8126bbb89cda8c87bf324e3495ceb3164ae7cbManman Ren 5131612faae3cf7ecfaddba64f7064f0ce4b32dd471Chris Lattner/// CreateFixedObject - Create a new object at a fixed location on the stack. 5141612faae3cf7ecfaddba64f7064f0ce4b32dd471Chris Lattner/// All fixed objects should be created before other objects are created for 5151612faae3cf7ecfaddba64f7064f0ce4b32dd471Chris Lattner/// efficiency. By default, fixed objects are immutable. This returns an 5161612faae3cf7ecfaddba64f7064f0ce4b32dd471Chris Lattner/// index with a negative value. 5171612faae3cf7ecfaddba64f7064f0ce4b32dd471Chris Lattner/// 5181612faae3cf7ecfaddba64f7064f0ce4b32dd471Chris Lattnerint MachineFrameInfo::CreateFixedObject(uint64_t Size, int64_t SPOffset, 519ed2ae136d29dd36122d2476801e7d7a86e8301e3Evan Cheng bool Immutable) { 5201612faae3cf7ecfaddba64f7064f0ce4b32dd471Chris Lattner assert(Size != 0 && "Cannot allocate zero size fixed stack objects!"); 521f2f490368797fff899e8025133f10c37e3a2ebe5Evan Cheng // The alignment of the frame index can be determined from its offset from 522f2f490368797fff899e8025133f10c37e3a2ebe5Evan Cheng // the incoming frame position. If the frame object is at offset 32 and 523f2f490368797fff899e8025133f10c37e3a2ebe5Evan Cheng // the stack is guaranteed to be 16-byte aligned, then we know that the 524f2f490368797fff899e8025133f10c37e3a2ebe5Evan Cheng // object is 16-byte aligned. 525f2f490368797fff899e8025133f10c37e3a2ebe5Evan Cheng unsigned StackAlign = TFI.getStackAlignment(); 526f2f490368797fff899e8025133f10c37e3a2ebe5Evan Cheng unsigned Align = MinAlign(SPOffset, StackAlign); 52769261a644298bff1497d46c8cd38d688670f307bManman Ren Align = clampStackAlignment(!TFI.isStackRealignable() || !RealignOption, 52869261a644298bff1497d46c8cd38d688670f307bManman Ren Align, TFI.getStackAlignment()); 529f2f490368797fff899e8025133f10c37e3a2ebe5Evan Cheng Objects.insert(Objects.begin(), StackObject(Size, Align, SPOffset, Immutable, 530c05d30601ced172b55be81bb529df6be91d6ae15Nadav Rotem /*isSS*/ false, 531c05d30601ced172b55be81bb529df6be91d6ae15Nadav Rotem /*NeedSP*/ false, 532c05d30601ced172b55be81bb529df6be91d6ae15Nadav Rotem /*Alloca*/ 0)); 5331612faae3cf7ecfaddba64f7064f0ce4b32dd471Chris Lattner return -++NumFixedObjects; 5341612faae3cf7ecfaddba64f7064f0ce4b32dd471Chris Lattner} 5351612faae3cf7ecfaddba64f7064f0ce4b32dd471Chris Lattner 5361612faae3cf7ecfaddba64f7064f0ce4b32dd471Chris Lattner 5374a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund OlesenBitVector 5384a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund OlesenMachineFrameInfo::getPristineRegs(const MachineBasicBlock *MBB) const { 5394a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen assert(MBB && "MBB must be valid"); 5404a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen const MachineFunction *MF = MBB->getParent(); 5414a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen assert(MF && "MBB must be part of a MachineFunction"); 5424a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen const TargetMachine &TM = MF->getTarget(); 5434a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen const TargetRegisterInfo *TRI = TM.getRegisterInfo(); 5444a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen BitVector BV(TRI->getNumRegs()); 5454a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen 5464a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen // Before CSI is calculated, no registers are considered pristine. They can be 5474a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen // freely used and PEI will make sure they are saved. 5484a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen if (!isCalleeSavedInfoValid()) 5494a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen return BV; 5504a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen 551015f228861ef9b337366f92f637d4e8d624bb006Craig Topper for (const uint16_t *CSR = TRI->getCalleeSavedRegs(MF); CSR && *CSR; ++CSR) 5524a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen BV.set(*CSR); 5534a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen 5544a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen // The entry MBB always has all CSRs pristine. 5554a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen if (MBB == &MF->front()) 5564a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen return BV; 5574a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen 5584a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen // On other MBBs the saved CSRs are not pristine. 5594a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen const std::vector<CalleeSavedInfo> &CSI = getCalleeSavedInfo(); 5604a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen for (std::vector<CalleeSavedInfo>::const_iterator I = CSI.begin(), 5614a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen E = CSI.end(); I != E; ++I) 5624a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen BV.reset(I->getReg()); 5634a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen 5644a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen return BV; 5654a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen} 5664a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen 5674a0f08c5fc14d840e4e411fade036f1cd815b795Jakob Stoklund Olesen 568d74c556e9aaad81a188158b7ba12d7ccffb30936Chris Lattnervoid MachineFrameInfo::print(const MachineFunction &MF, raw_ostream &OS) const{ 5690ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (Objects.empty()) return; 5700ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 57116c29b5f285f375be53dabaa73e3e91107485fe4Anton Korobeynikov const TargetFrameLowering *FI = MF.getTarget().getFrameLowering(); 57206140888b1fed24910031f23c302c6a3221f3c42Matthijs Kooijman int ValOffset = (FI ? FI->getOffsetOfLocalArea() : 0); 5739085d8a9a9000eeaa7cf337ccbdca41d528c99c2Chris Lattner 5740ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "Frame Objects:\n"; 5750ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 576955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner for (unsigned i = 0, e = Objects.size(); i != e; ++i) { 577955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner const StackObject &SO = Objects[i]; 5780ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " fi#" << (int)(i-NumFixedObjects) << ": "; 579d36531249a9a9500e516148e7e72d4c0a7a4d0eeEvan Cheng if (SO.Size == ~0ULL) { 580d36531249a9a9500e516148e7e72d4c0a7a4d0eeEvan Cheng OS << "dead\n"; 581d36531249a9a9500e516148e7e72d4c0a7a4d0eeEvan Cheng continue; 582d36531249a9a9500e516148e7e72d4c0a7a4d0eeEvan Cheng } 583955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner if (SO.Size == 0) 584955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner OS << "variable sized"; 585955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner else 5860ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "size=" << SO.Size; 5870ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << ", align=" << SO.Alignment; 58876d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos 589955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner if (i < NumFixedObjects) 5900ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << ", fixed"; 591955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner if (i < NumFixedObjects || SO.SPOffset != -1) { 592a401b1e1c5eb9563617db8a2477b4c5f8b239521Chris Lattner int64_t Off = SO.SPOffset - ValOffset; 5930ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << ", at location [SP"; 5949085d8a9a9000eeaa7cf337ccbdca41d528c99c2Chris Lattner if (Off > 0) 59576d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos OS << "+" << Off; 5969085d8a9a9000eeaa7cf337ccbdca41d528c99c2Chris Lattner else if (Off < 0) 59776d9daccebc589dbf0f9cbb23326c7d50a26f17dAlkis Evlogimenos OS << Off; 598955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner OS << "]"; 599955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner } 600955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner OS << "\n"; 601955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner } 602955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner} 603955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner 604b720be6a50f4e1b3280d2b029ee38dda14577525Manman Ren#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) 6059085d8a9a9000eeaa7cf337ccbdca41d528c99c2Chris Lattnervoid MachineFrameInfo::dump(const MachineFunction &MF) const { 606dc55481841d5ac060c279a61c944f192ad9bb23eDavid Greene print(MF, dbgs()); 6079085d8a9a9000eeaa7cf337ccbdca41d528c99c2Chris Lattner} 60877e300e8f0b8db8eec448cae9c87d7c5bfad9757Manman Ren#endif 609955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner 610955fad1f99dd174023a1b2e6a1795958147b077dChris Lattner//===----------------------------------------------------------------------===// 61137efe6764568a3829fee26aba532283131d1a104Nate Begeman// MachineJumpTableInfo implementation 61237efe6764568a3829fee26aba532283131d1a104Nate Begeman//===----------------------------------------------------------------------===// 61337efe6764568a3829fee26aba532283131d1a104Nate Begeman 614071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner/// getEntrySize - Return the size of each entry in the jump table. 6153574eca1b02600bac4e625297f4ecf745f4c4f32Micah Villmowunsigned MachineJumpTableInfo::getEntrySize(const DataLayout &TD) const { 616071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner // The size of a jump table entry is 4 bytes unless the entry is just the 617071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner // address of a block, in which case it is the pointer size. 618071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner switch (getEntryKind()) { 619071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner case MachineJumpTableInfo::EK_BlockAddress: 620426c2bf5cdd2173e4a33aea8cb92cf684a724f4bChandler Carruth return TD.getPointerSize(); 6216c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760Akira Hatanaka case MachineJumpTableInfo::EK_GPRel64BlockAddress: 6226c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760Akira Hatanaka return 8; 623071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner case MachineJumpTableInfo::EK_GPRel32BlockAddress: 624071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner case MachineJumpTableInfo::EK_LabelDifference32: 62585fe07866a3b240d9facef3b2f2ea81a0a8db018Chris Lattner case MachineJumpTableInfo::EK_Custom32: 626071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner return 4; 62795da605e15a6f108b551ecc6772823ea53de3007Richard Osborne case MachineJumpTableInfo::EK_Inline: 62895da605e15a6f108b551ecc6772823ea53de3007Richard Osborne return 0; 629071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner } 630aae875c27ce59e1c98dbc4a2358a006f2edef433Craig Topper llvm_unreachable("Unknown jump table encoding!"); 631071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner} 632071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner 633071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner/// getEntryAlignment - Return the alignment of each entry in the jump table. 6343574eca1b02600bac4e625297f4ecf745f4c4f32Micah Villmowunsigned MachineJumpTableInfo::getEntryAlignment(const DataLayout &TD) const { 635071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner // The alignment of a jump table entry is the alignment of int32 unless the 636071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner // entry is just the address of a block, in which case it is the pointer 637071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner // alignment. 638071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner switch (getEntryKind()) { 639071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner case MachineJumpTableInfo::EK_BlockAddress: 640426c2bf5cdd2173e4a33aea8cb92cf684a724f4bChandler Carruth return TD.getPointerABIAlignment(); 6416c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760Akira Hatanaka case MachineJumpTableInfo::EK_GPRel64BlockAddress: 6426c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760Akira Hatanaka return TD.getABIIntegerTypeAlignment(64); 643071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner case MachineJumpTableInfo::EK_GPRel32BlockAddress: 644071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner case MachineJumpTableInfo::EK_LabelDifference32: 64585fe07866a3b240d9facef3b2f2ea81a0a8db018Chris Lattner case MachineJumpTableInfo::EK_Custom32: 646071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner return TD.getABIIntegerTypeAlignment(32); 64795da605e15a6f108b551ecc6772823ea53de3007Richard Osborne case MachineJumpTableInfo::EK_Inline: 64895da605e15a6f108b551ecc6772823ea53de3007Richard Osborne return 1; 649071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner } 650aae875c27ce59e1c98dbc4a2358a006f2edef433Craig Topper llvm_unreachable("Unknown jump table encoding!"); 651071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner} 652071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner 653d1ec31dca534a8816d7f2fcbfdc7ed4476b471d3Bob Wilson/// createJumpTableIndex - Create a new jump table entry in the jump table info. 65437efe6764568a3829fee26aba532283131d1a104Nate Begeman/// 655d1ec31dca534a8816d7f2fcbfdc7ed4476b471d3Bob Wilsonunsigned MachineJumpTableInfo::createJumpTableIndex( 656a4eb44a285984ec999de632beb5145b099f5416dChris Lattner const std::vector<MachineBasicBlock*> &DestBBs) { 657e7251a0377334bdb57bd188828bf89c9e3980fadChris Lattner assert(!DestBBs.empty() && "Cannot create an empty jump table!"); 65837efe6764568a3829fee26aba532283131d1a104Nate Begeman JumpTables.push_back(MachineJumpTableEntry(DestBBs)); 65937efe6764568a3829fee26aba532283131d1a104Nate Begeman return JumpTables.size()-1; 66037efe6764568a3829fee26aba532283131d1a104Nate Begeman} 66137efe6764568a3829fee26aba532283131d1a104Nate Begeman 662593ea05957b98472a916278d64229ceda223c50bDan Gohman/// ReplaceMBBInJumpTables - If Old is the target of any jump tables, update 663593ea05957b98472a916278d64229ceda223c50bDan Gohman/// the jump tables to branch to New instead. 664beeb93e6ba48af2661eabc4872d8b159fb43e5dbChris Lattnerbool MachineJumpTableInfo::ReplaceMBBInJumpTables(MachineBasicBlock *Old, 665beeb93e6ba48af2661eabc4872d8b159fb43e5dbChris Lattner MachineBasicBlock *New) { 666593ea05957b98472a916278d64229ceda223c50bDan Gohman assert(Old != New && "Not making a change?"); 667593ea05957b98472a916278d64229ceda223c50bDan Gohman bool MadeChange = false; 66868bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach for (size_t i = 0, e = JumpTables.size(); i != e; ++i) 66968bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach ReplaceMBBInJumpTable(i, Old, New); 67068bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach return MadeChange; 67168bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach} 67268bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach 67368bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach/// ReplaceMBBInJumpTable - If Old is a target of the jump tables, update 67468bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach/// the jump table to branch to New instead. 675beeb93e6ba48af2661eabc4872d8b159fb43e5dbChris Lattnerbool MachineJumpTableInfo::ReplaceMBBInJumpTable(unsigned Idx, 676beeb93e6ba48af2661eabc4872d8b159fb43e5dbChris Lattner MachineBasicBlock *Old, 677beeb93e6ba48af2661eabc4872d8b159fb43e5dbChris Lattner MachineBasicBlock *New) { 67868bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach assert(Old != New && "Not making a change?"); 67968bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach bool MadeChange = false; 68068bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach MachineJumpTableEntry &JTE = JumpTables[Idx]; 68168bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach for (size_t j = 0, e = JTE.MBBs.size(); j != e; ++j) 68268bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach if (JTE.MBBs[j] == Old) { 68368bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach JTE.MBBs[j] = New; 68468bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach MadeChange = true; 68568bb60f6a4e0902769f72d1badda4e37cd873ffbJim Grosbach } 686593ea05957b98472a916278d64229ceda223c50bDan Gohman return MadeChange; 687593ea05957b98472a916278d64229ceda223c50bDan Gohman} 68837efe6764568a3829fee26aba532283131d1a104Nate Begeman 689d74c556e9aaad81a188158b7ba12d7ccffb30936Chris Lattnervoid MachineJumpTableInfo::print(raw_ostream &OS) const { 6900ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (JumpTables.empty()) return; 6910ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 6920ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "Jump Tables:\n"; 6930ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 69437efe6764568a3829fee26aba532283131d1a104Nate Begeman for (unsigned i = 0, e = JumpTables.size(); i != e; ++i) { 6950ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " jt#" << i << ": "; 6960ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman for (unsigned j = 0, f = JumpTables[i].MBBs.size(); j != f; ++j) 6970ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " BB#" << JumpTables[i].MBBs[j]->getNumber(); 69837efe6764568a3829fee26aba532283131d1a104Nate Begeman } 6990ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 7000ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << '\n'; 70137efe6764568a3829fee26aba532283131d1a104Nate Begeman} 70237efe6764568a3829fee26aba532283131d1a104Nate Begeman 703b720be6a50f4e1b3280d2b029ee38dda14577525Manman Ren#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) 704dc55481841d5ac060c279a61c944f192ad9bb23eDavid Greenevoid MachineJumpTableInfo::dump() const { print(dbgs()); } 70577e300e8f0b8db8eec448cae9c87d7c5bfad9757Manman Ren#endif 70637efe6764568a3829fee26aba532283131d1a104Nate Begeman 70737efe6764568a3829fee26aba532283131d1a104Nate Begeman 70837efe6764568a3829fee26aba532283131d1a104Nate Begeman//===----------------------------------------------------------------------===// 7094d149cdae1553426f49623fdae215d481d56d955Chris Lattner// MachineConstantPool implementation 7104d149cdae1553426f49623fdae215d481d56d955Chris Lattner//===----------------------------------------------------------------------===// 7114d149cdae1553426f49623fdae215d481d56d955Chris Lattner 7122d24e2a396a1d211baaeedf32148a3b657240170David Blaikievoid MachineConstantPoolValue::anchor() { } 7132d24e2a396a1d211baaeedf32148a3b657240170David Blaikie 714db125cfaf57cc83e7dd7453de2d509bc8efd0e5eChris LattnerType *MachineConstantPoolEntry::getType() const { 7159abd7c38675ad305c733b7e90578255271afc6bdEvan Cheng if (isMachineConstantPoolEntry()) 716cb4596364369ea36ff5675eb12fc62d0c6f1f0ddChris Lattner return Val.MachineCPVal->getType(); 7179abd7c38675ad305c733b7e90578255271afc6bdEvan Cheng return Val.ConstVal->getType(); 7189abd7c38675ad305c733b7e90578255271afc6bdEvan Cheng} 7199abd7c38675ad305c733b7e90578255271afc6bdEvan Cheng 720cb4596364369ea36ff5675eb12fc62d0c6f1f0ddChris Lattner 721354c0165e755fd857bc89792243b82387ee3936dChris Lattnerunsigned MachineConstantPoolEntry::getRelocationInfo() const { 722cb4596364369ea36ff5675eb12fc62d0c6f1f0ddChris Lattner if (isMachineConstantPoolEntry()) 723354c0165e755fd857bc89792243b82387ee3936dChris Lattner return Val.MachineCPVal->getRelocationInfo(); 7247cf12c7efd37dc12c3ed536a3f4c373dddac2b85Chris Lattner return Val.ConstVal->getRelocationInfo(); 725cb4596364369ea36ff5675eb12fc62d0c6f1f0ddChris Lattner} 726cb4596364369ea36ff5675eb12fc62d0c6f1f0ddChris Lattner 727d6594ae54cfde4db4d30272192645c0a45fb9902Evan ChengMachineConstantPool::~MachineConstantPool() { 728d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng for (unsigned i = 0, e = Constants.size(); i != e; ++i) 729d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng if (Constants[i].isMachineConstantPoolEntry()) 730d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng delete Constants[i].Val.MachineCPVal; 7315567869637383969dced0b84dbd19da12682df6bCameron Zwarich for (DenseSet<MachineConstantPoolValue*>::iterator I = 7325567869637383969dced0b84dbd19da12682df6bCameron Zwarich MachineCPVsSharingEntries.begin(), E = MachineCPVsSharingEntries.end(); 7335567869637383969dced0b84dbd19da12682df6bCameron Zwarich I != E; ++I) 7345567869637383969dced0b84dbd19da12682df6bCameron Zwarich delete *I; 735d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng} 736d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng 73783f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman/// CanShareConstantPoolEntry - Test whether the given two constants 73883f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman/// can be allocated the same constant pool entry. 73946510a73e977273ec67747eb34cbdb43f815e451Dan Gohmanstatic bool CanShareConstantPoolEntry(const Constant *A, const Constant *B, 7403574eca1b02600bac4e625297f4ecf745f4c4f32Micah Villmow const DataLayout *TD) { 74183f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman // Handle the trivial case quickly. 74283f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman if (A == B) return true; 74383f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman 74483f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman // If they have the same type but weren't the same constant, quickly 74583f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman // reject them. 74683f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman if (A->getType() == B->getType()) return false; 74783f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman 74873858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner // We can't handle structs or arrays. 74973858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner if (isa<StructType>(A->getType()) || isa<ArrayType>(A->getType()) || 75073858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner isa<StructType>(B->getType()) || isa<ArrayType>(B->getType())) 75173858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner return false; 75273858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner 75383f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman // For now, only support constants with the same size. 7546b0dc92043ab1f63d78b8796098575e1d777b701Chris Lattner uint64_t StoreSize = TD->getTypeStoreSize(A->getType()); 7556b0dc92043ab1f63d78b8796098575e1d777b701Chris Lattner if (StoreSize != TD->getTypeStoreSize(B->getType()) || 7566b0dc92043ab1f63d78b8796098575e1d777b701Chris Lattner StoreSize > 128) 75783f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman return false; 75883f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman 75973858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner Type *IntTy = IntegerType::get(A->getContext(), StoreSize*8); 76073858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner 76173858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner // Try constant folding a bitcast of both instructions to an integer. If we 76273858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner // get two identical ConstantInt's, then we are good to share them. We use 76373858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner // the constant folding APIs to do this so that we get the benefit of 7643574eca1b02600bac4e625297f4ecf745f4c4f32Micah Villmow // DataLayout. 76573858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner if (isa<PointerType>(A->getType())) 76673858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner A = ConstantFoldInstOperands(Instruction::PtrToInt, IntTy, 76773858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner const_cast<Constant*>(A), TD); 76873858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner else if (A->getType() != IntTy) 76973858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner A = ConstantFoldInstOperands(Instruction::BitCast, IntTy, 77073858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner const_cast<Constant*>(A), TD); 77173858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner if (isa<PointerType>(B->getType())) 77273858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner B = ConstantFoldInstOperands(Instruction::PtrToInt, IntTy, 77373858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner const_cast<Constant*>(B), TD); 77473858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner else if (B->getType() != IntTy) 77573858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner B = ConstantFoldInstOperands(Instruction::BitCast, IntTy, 77673858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner const_cast<Constant*>(B), TD); 7770c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 77873858d16893e4cddd97f358a19b48bd4bc57ee97Chris Lattner return A == B; 77983f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman} 78083f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman 7813029f920519e0871a5aad5d7c592281093953733Chris Lattner/// getConstantPoolIndex - Create a new entry in the constant pool or return 78205ae98346a190d74c2c8799c3af2f8ca23e47c27Dan Gohman/// an existing one. User must specify the log2 of the minimum required 78305ae98346a190d74c2c8799c3af2f8ca23e47c27Dan Gohman/// alignment for the object. 7843029f920519e0871a5aad5d7c592281093953733Chris Lattner/// 78546510a73e977273ec67747eb34cbdb43f815e451Dan Gohmanunsigned MachineConstantPool::getConstantPoolIndex(const Constant *C, 7863029f920519e0871a5aad5d7c592281093953733Chris Lattner unsigned Alignment) { 7873029f920519e0871a5aad5d7c592281093953733Chris Lattner assert(Alignment && "Alignment must be specified!"); 7883029f920519e0871a5aad5d7c592281093953733Chris Lattner if (Alignment > PoolAlignment) PoolAlignment = Alignment; 78983f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman 7903029f920519e0871a5aad5d7c592281093953733Chris Lattner // Check to see if we already have this constant. 7913029f920519e0871a5aad5d7c592281093953733Chris Lattner // 7923029f920519e0871a5aad5d7c592281093953733Chris Lattner // FIXME, this could be made much more efficient for large constant pools. 7933029f920519e0871a5aad5d7c592281093953733Chris Lattner for (unsigned i = 0, e = Constants.size(); i != e; ++i) 79483f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman if (!Constants[i].isMachineConstantPoolEntry() && 79583f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman CanShareConstantPoolEntry(Constants[i].Val.ConstVal, C, TD)) { 79683f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman if ((unsigned)Constants[i].getAlignment() < Alignment) 79783f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman Constants[i].Alignment = Alignment; 7983029f920519e0871a5aad5d7c592281093953733Chris Lattner return i; 79983f6120c9a1fe758b2502b060cd7ae9a981ecc39Dan Gohman } 8000c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 8011606e8e4cd937e6de6681f686c266cf61722d972Evan Cheng Constants.push_back(MachineConstantPoolEntry(C, Alignment)); 8023029f920519e0871a5aad5d7c592281093953733Chris Lattner return Constants.size()-1; 8033029f920519e0871a5aad5d7c592281093953733Chris Lattner} 8043029f920519e0871a5aad5d7c592281093953733Chris Lattner 805d6594ae54cfde4db4d30272192645c0a45fb9902Evan Chengunsigned MachineConstantPool::getConstantPoolIndex(MachineConstantPoolValue *V, 806d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng unsigned Alignment) { 807d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng assert(Alignment && "Alignment must be specified!"); 808d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng if (Alignment > PoolAlignment) PoolAlignment = Alignment; 8090c1eac8129f7e4e637074a482a085448e1680199Chad Rosier 810d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng // Check to see if we already have this constant. 811d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng // 812d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng // FIXME, this could be made much more efficient for large constant pools. 813d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng int Idx = V->getExistingMachineCPValue(this, Alignment); 8145567869637383969dced0b84dbd19da12682df6bCameron Zwarich if (Idx != -1) { 8155567869637383969dced0b84dbd19da12682df6bCameron Zwarich MachineCPVsSharingEntries.insert(V); 816d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng return (unsigned)Idx; 8175567869637383969dced0b84dbd19da12682df6bCameron Zwarich } 8181606e8e4cd937e6de6681f686c266cf61722d972Evan Cheng 8191606e8e4cd937e6de6681f686c266cf61722d972Evan Cheng Constants.push_back(MachineConstantPoolEntry(V, Alignment)); 820d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng return Constants.size()-1; 821d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng} 822d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng 82362ca32540f950d500227f1863b95cd08ad28099eChris Lattnervoid MachineConstantPool::print(raw_ostream &OS) const { 8240ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (Constants.empty()) return; 8250ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 8260ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "Constant Pool:\n"; 827b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng for (unsigned i = 0, e = Constants.size(); i != e; ++i) { 8280ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " cp#" << i << ": "; 829d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng if (Constants[i].isMachineConstantPoolEntry()) 830d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng Constants[i].Val.MachineCPVal->print(OS); 831d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng else 83259324297650c12a8dccf1a7ad650a9e895fdc17eRoman Divacky OS << *(const Value*)Constants[i].Val.ConstVal; 8330ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << ", align=" << Constants[i].getAlignment(); 834b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng OS << "\n"; 835b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng } 8364d149cdae1553426f49623fdae215d481d56d955Chris Lattner} 8374d149cdae1553426f49623fdae215d481d56d955Chris Lattner 838b720be6a50f4e1b3280d2b029ee38dda14577525Manman Ren#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) 839dc55481841d5ac060c279a61c944f192ad9bb23eDavid Greenevoid MachineConstantPool::dump() const { print(dbgs()); } 84077e300e8f0b8db8eec448cae9c87d7c5bfad9757Manman Ren#endif 841