ARMSubtarget.cpp revision 901d80065c9afa0ba33e8546c2e1e99a00aceb14
131d157ae1ac2cd9c787dc3c1d28e64c682803844Jia Liu//===-- ARMSubtarget.cpp - ARM Subtarget Information ----------------------===// 2a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// 3a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// The LLVM Compiler Infrastructure 4a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// 8a8e2989ece6dc46df59b0768184028257f913843Evan Cheng//===----------------------------------------------------------------------===// 9a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// 105b1b4489cf3a0f56f8be0673fc5cc380a32d277bEvan Cheng// This file implements the ARM specific subclass of TargetSubtargetInfo. 11a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// 12a8e2989ece6dc46df59b0768184028257f913843Evan Cheng//===----------------------------------------------------------------------===// 13a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 14a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#include "ARMSubtarget.h" 15e127dfd0b175b5a336e61fecaad7fc2aec65d95cAndrew Trick#include "ARMBaseInstrInfo.h" 16d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "ARMBaseRegisterInfo.h" 174788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling#include "llvm/IR/Attributes.h" 180b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/GlobalValue.h" 194788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling#include "llvm/IR/Function.h" 2054fc124d72512d65d62565cabcd85c7b07496513Bob Wilson#include "llvm/Support/CommandLine.h" 21d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Target/TargetInstrInfo.h" 2294214703d97d8d9dfca88174ffc7e94820a85e62Evan Cheng 2394214703d97d8d9dfca88174ffc7e94820a85e62Evan Cheng#define GET_SUBTARGETINFO_TARGET_DESC 24ebdeeab812beec0385b445f3d4c41a114e0d972fEvan Cheng#define GET_SUBTARGETINFO_CTOR 25385e930d55f3ecd3c9538823dfa5896a12461845Evan Cheng#include "ARMGenSubtargetInfo.inc" 2694214703d97d8d9dfca88174ffc7e94820a85e62Evan Cheng 27a8e2989ece6dc46df59b0768184028257f913843Evan Chengusing namespace llvm; 28a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 2954fc124d72512d65d62565cabcd85c7b07496513Bob Wilsonstatic cl::opt<bool> 3054fc124d72512d65d62565cabcd85c7b07496513Bob WilsonReserveR9("arm-reserve-r9", cl::Hidden, 3154fc124d72512d65d62565cabcd85c7b07496513Bob Wilson cl::desc("Reserve R9, making it unavailable as GPR")); 3254fc124d72512d65d62565cabcd85c7b07496513Bob Wilson 335cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikovstatic cl::opt<bool> 3453519f015e3e84e9f57b677cc8724805a6009b73Evan ChengDarwinUseMOVT("arm-darwin-use-movt", cl::init(true), cl::Hidden); 355cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 3602aba73a9ec04d0de9424422249af3948ca9573aBob Wilsonstatic cl::opt<bool> 37eb1641d54a7eda7717304bc4d55d059208d8ebedBob WilsonUseFusedMulOps("arm-use-mulops", 38eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilson cl::init(true), cl::Hidden); 39eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilson 40eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilsonstatic cl::opt<bool> 4102aba73a9ec04d0de9424422249af3948ca9573aBob WilsonStrictAlign("arm-strict-align", cl::Hidden, 4202aba73a9ec04d0de9424422249af3948ca9573aBob Wilson cl::desc("Disallow all unaligned memory accesses")); 4302aba73a9ec04d0de9424422249af3948ca9573aBob Wilson 44276365dd4bc0c2160f91fd8062ae1fc90c86c324Evan ChengARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &CPU, 4594ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng const std::string &FS) 460ddff1b5359433faf2eb1c4ff5320ddcbd42f52fEvan Cheng : ARMGenSubtargetInfo(TT, CPU, FS) 473ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng , ARMProcFamily(Others) 483630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio , stackAlignment(4) 49276365dd4bc0c2160f91fd8062ae1fc90c86c324Evan Cheng , CPUString(CPU) 50b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng , TargetTriple(TT) 513630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio , TargetABI(ARM_ABI_APCS) { 52901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling initializeEnvironment(); 534788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling resetSubtargetFeatures(CPU, FS); 544788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling} 554788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling 56901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendlingvoid ARMSubtarget::initializeEnvironment() { 57901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasV4TOps = false; 58901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasV5TOps = false; 59901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasV5TEOps = false; 60901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasV6Ops = false; 61901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasV6T2Ops = false; 62901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasV7Ops = false; 63901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasVFPv2 = false; 64901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasVFPv3 = false; 65901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasVFPv4 = false; 66901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasNEON = false; 67901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling UseNEONForSinglePrecisionFP = false; 68901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling UseMulOps = UseFusedMulOps; 69901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling SlowFPVMLx = false; 70901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasVMLxForwarding = false; 71901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling SlowFPBrcc = false; 72901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling InThumbMode = false; 73901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasThumb2 = false; 74901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling IsMClass = false; 75901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling NoARM = false; 76901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling PostRAScheduler = false; 77901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling IsR9Reserved = ReserveR9; 78901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling UseMovt = false; 79901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling SupportsTailCall = false; 80901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasFP16 = false; 81901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasD16 = false; 82901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasHardwareDivide = false; 83901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasHardwareDivideInARM = false; 84901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasT2ExtractPack = false; 85901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasDataBarrier = false; 86901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling Pref32BitThumb = false; 87901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling AvoidCPSRPartialUpdate = false; 88901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling AvoidMOVsShifterOperand = false; 89901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasRAS = false; 90901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling HasMPExtension = false; 91901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling FPOnlySP = false; 92901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling AllowsUnalignedMem = false; 93901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling Thumb2DSP = false; 94901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling UseNaClTrap = false; 95901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling} 96901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling 974788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendlingvoid ARMSubtarget::resetSubtargetFeatures(const MachineFunction *MF) { 984788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling AttributeSet FnAttrs = MF->getFunction()->getAttributes(); 994788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling Attribute CPUAttr = FnAttrs.getAttribute(AttributeSet::FunctionIndex, 1004788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling "target-cpu"); 1014788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling Attribute FSAttr = FnAttrs.getAttribute(AttributeSet::FunctionIndex, 1024788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling "target-features"); 1034788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling std::string CPU = 1044788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling !CPUAttr.hasAttribute(Attribute::None) ?CPUAttr.getValueAsString() : ""; 1054788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling std::string FS = 1064788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling !FSAttr.hasAttribute(Attribute::None) ? FSAttr.getValueAsString() : ""; 107901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling if (!FS.empty()) { 108901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling initializeEnvironment(); 1094788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling resetSubtargetFeatures(CPU, FS); 110901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling } 1114788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling} 1124788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling 1134788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendlingvoid ARMSubtarget::resetSubtargetFeatures(StringRef CPU, StringRef FS) { 114276365dd4bc0c2160f91fd8062ae1fc90c86c324Evan Cheng if (CPUString.empty()) 115276365dd4bc0c2160f91fd8062ae1fc90c86c324Evan Cheng CPUString = "generic"; 1164b1747430a2d67702958b95d6776396734f184a0Evan Cheng 1174cc446bc400b2ff58af81c91f5e145b81d6beb26Evan Cheng // Insert the architecture feature derived from the target triple into the 1184cc446bc400b2ff58af81c91f5e145b81d6beb26Evan Cheng // feature string. This is important for setting features that are implied 1194cc446bc400b2ff58af81c91f5e145b81d6beb26Evan Cheng // based on the architecture version. 1204788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling std::string ArchFS = ARM_MC::ParseARMTriple(TargetTriple.getTriple(), 1214788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling CPUString); 12294ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng if (!FS.empty()) { 12394ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng if (!ArchFS.empty()) 1244788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling ArchFS = ArchFS + "," + FS.str(); 12594ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng else 12694ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng ArchFS = FS; 12794ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng } 1280ddff1b5359433faf2eb1c4ff5320ddcbd42f52fEvan Cheng ParseSubtargetFeatures(CPUString, ArchFS); 12994ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng 13094ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng // Thumb2 implies at least V6T2. FIXME: Fix tests to explicitly specify a 13194ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng // ARM version or CPU and then remove this. 13239dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng if (!HasV6T2Ops && hasThumb2()) 13339dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng HasV4TOps = HasV5TOps = HasV5TEOps = HasV6Ops = HasV6T2Ops = true; 13466f6c79450a93d979128d8702c83841c8f715dc8Bob Wilson 135d43b5c97cff06d7840b974ca84fa0639d2567968Andrew Trick // Keep a pointer to static instruction cost data for the specified CPU. 136d43b5c97cff06d7840b974ca84fa0639d2567968Andrew Trick SchedModel = getSchedModelForCPU(CPUString); 137d43b5c97cff06d7840b974ca84fa0639d2567968Andrew Trick 13894214703d97d8d9dfca88174ffc7e94820a85e62Evan Cheng // Initialize scheduling itinerary for the specified CPU. 13994214703d97d8d9dfca88174ffc7e94820a85e62Evan Cheng InstrItins = getInstrItineraryForCPU(CPUString); 14094214703d97d8d9dfca88174ffc7e94820a85e62Evan Cheng 1414788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling if ((TargetTriple.getTriple().find("eabi") != std::string::npos) || 1424788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling (isTargetIOS() && isMClass())) 14307043279f60622243d16d8a3f60805960482083cEvan Cheng // FIXME: We might want to separate AAPCS and EABI. Some systems, e.g. 14407043279f60622243d16d8a3f60805960482083cEvan Cheng // Darwin-EABI conforms to AACPS but not the rest of EABI. 1450ddff1b5359433faf2eb1c4ff5320ddcbd42f52fEvan Cheng TargetABI = ARM_ABI_AAPCS; 1460ddff1b5359433faf2eb1c4ff5320ddcbd42f52fEvan Cheng 1473630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio if (isAAPCS_ABI()) 1483630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio stackAlignment = 8; 1493630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 150afff941211526a31f931aa9fcac84ae42ff60ef0Evan Cheng if (!isTargetIOS()) 1515de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng UseMovt = hasV6T2Ops(); 1525de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng else { 15339dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng IsR9Reserved = ReserveR9 | !HasV6Ops; 15453519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng UseMovt = DarwinUseMOVT && hasV6T2Ops(); 15507043279f60622243d16d8a3f60805960482083cEvan Cheng SupportsTailCall = !getTargetTriple().isOSVersionLT(5, 0); 1565de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng } 157471850ab84301dd47cab2bf8d694fcb5766c1169David Goodwin 158d3dd50fec00fbbb76edbfaff4d613f1248d21c9eEvan Cheng if (!isThumb() || hasThumb2()) 159d3dd50fec00fbbb76edbfaff4d613f1248d21c9eEvan Cheng PostRAScheduler = true; 16002aba73a9ec04d0de9424422249af3948ca9573aBob Wilson 16102aba73a9ec04d0de9424422249af3948ca9573aBob Wilson // v6+ may or may not support unaligned mem access depending on the system 16202aba73a9ec04d0de9424422249af3948ca9573aBob Wilson // configuration. 16302aba73a9ec04d0de9424422249af3948ca9573aBob Wilson if (!StrictAlign && hasV6Ops() && isTargetDarwin()) 16402aba73a9ec04d0de9424422249af3948ca9573aBob Wilson AllowsUnalignedMem = true; 165a8e2989ece6dc46df59b0768184028257f913843Evan Cheng} 166e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng 167e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng/// GVIsIndirectSymbol - true if the GV will be accessed via an indirect symbol. 16863476a80404125e5196b6c09113c1d4796da0604Evan Chengbool 16946510a73e977273ec67747eb34cbdb43f815e451Dan GohmanARMSubtarget::GVIsIndirectSymbol(const GlobalValue *GV, 17046510a73e977273ec67747eb34cbdb43f815e451Dan Gohman Reloc::Model RelocM) const { 17163476a80404125e5196b6c09113c1d4796da0604Evan Cheng if (RelocM == Reloc::Static) 172e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng return false; 17363476a80404125e5196b6c09113c1d4796da0604Evan Cheng 174f0356fe140af1a30587b9a86bcfb1b2c51b8ce20Jeffrey Yasskin // Materializable GVs (in JIT lazy compilation mode) do not require an extra 175f0356fe140af1a30587b9a86bcfb1b2c51b8ce20Jeffrey Yasskin // load from stub. 176af05c69ba024b1838ae6f1071d6fd0f9fe33999fEvan Cheng bool isDecl = GV->hasAvailableExternallyLinkage(); 177af05c69ba024b1838ae6f1071d6fd0f9fe33999fEvan Cheng if (GV->isDeclaration() && !GV->isMaterializable()) 178af05c69ba024b1838ae6f1071d6fd0f9fe33999fEvan Cheng isDecl = true; 17963476a80404125e5196b6c09113c1d4796da0604Evan Cheng 18063476a80404125e5196b6c09113c1d4796da0604Evan Cheng if (!isTargetDarwin()) { 18163476a80404125e5196b6c09113c1d4796da0604Evan Cheng // Extra load is needed for all externally visible. 18263476a80404125e5196b6c09113c1d4796da0604Evan Cheng if (GV->hasLocalLinkage() || GV->hasHiddenVisibility()) 18363476a80404125e5196b6c09113c1d4796da0604Evan Cheng return false; 18463476a80404125e5196b6c09113c1d4796da0604Evan Cheng return true; 18563476a80404125e5196b6c09113c1d4796da0604Evan Cheng } else { 18663476a80404125e5196b6c09113c1d4796da0604Evan Cheng if (RelocM == Reloc::PIC_) { 18763476a80404125e5196b6c09113c1d4796da0604Evan Cheng // If this is a strong reference to a definition, it is definitely not 18863476a80404125e5196b6c09113c1d4796da0604Evan Cheng // through a stub. 18963476a80404125e5196b6c09113c1d4796da0604Evan Cheng if (!isDecl && !GV->isWeakForLinker()) 19063476a80404125e5196b6c09113c1d4796da0604Evan Cheng return false; 19163476a80404125e5196b6c09113c1d4796da0604Evan Cheng 19263476a80404125e5196b6c09113c1d4796da0604Evan Cheng // Unless we have a symbol with hidden visibility, we have to go through a 19363476a80404125e5196b6c09113c1d4796da0604Evan Cheng // normal $non_lazy_ptr stub because this symbol might be resolved late. 19463476a80404125e5196b6c09113c1d4796da0604Evan Cheng if (!GV->hasHiddenVisibility()) // Non-hidden $non_lazy_ptr reference. 19563476a80404125e5196b6c09113c1d4796da0604Evan Cheng return true; 19663476a80404125e5196b6c09113c1d4796da0604Evan Cheng 19763476a80404125e5196b6c09113c1d4796da0604Evan Cheng // If symbol visibility is hidden, we have a stub for common symbol 19863476a80404125e5196b6c09113c1d4796da0604Evan Cheng // references and external declarations. 19963476a80404125e5196b6c09113c1d4796da0604Evan Cheng if (isDecl || GV->hasCommonLinkage()) 20063476a80404125e5196b6c09113c1d4796da0604Evan Cheng // Hidden $non_lazy_ptr reference. 20163476a80404125e5196b6c09113c1d4796da0604Evan Cheng return true; 20263476a80404125e5196b6c09113c1d4796da0604Evan Cheng 20363476a80404125e5196b6c09113c1d4796da0604Evan Cheng return false; 20463476a80404125e5196b6c09113c1d4796da0604Evan Cheng } else { 20563476a80404125e5196b6c09113c1d4796da0604Evan Cheng // If this is a strong reference to a definition, it is definitely not 20663476a80404125e5196b6c09113c1d4796da0604Evan Cheng // through a stub. 20763476a80404125e5196b6c09113c1d4796da0604Evan Cheng if (!isDecl && !GV->isWeakForLinker()) 20863476a80404125e5196b6c09113c1d4796da0604Evan Cheng return false; 2096e8f4c404825b79f9b9176483653f1aa927dfbdeAndrew Trick 21063476a80404125e5196b6c09113c1d4796da0604Evan Cheng // Unless we have a symbol with hidden visibility, we have to go through a 21163476a80404125e5196b6c09113c1d4796da0604Evan Cheng // normal $non_lazy_ptr stub because this symbol might be resolved late. 21263476a80404125e5196b6c09113c1d4796da0604Evan Cheng if (!GV->hasHiddenVisibility()) // Non-hidden $non_lazy_ptr reference. 21363476a80404125e5196b6c09113c1d4796da0604Evan Cheng return true; 21463476a80404125e5196b6c09113c1d4796da0604Evan Cheng } 21563476a80404125e5196b6c09113c1d4796da0604Evan Cheng } 21663476a80404125e5196b6c09113c1d4796da0604Evan Cheng 21763476a80404125e5196b6c09113c1d4796da0604Evan Cheng return false; 218e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng} 219c2e8a7e8d2ab156afaa8ab0d0317dd9ee3db7d30David Goodwin 220654d5440a477b1f6c89b051107e041a331f78e27Owen Andersonunsigned ARMSubtarget::getMispredictionPenalty() const { 221d43b5c97cff06d7840b974ca84fa0639d2567968Andrew Trick return SchedModel->MispredictPenalty; 222654d5440a477b1f6c89b051107e041a331f78e27Owen Anderson} 223654d5440a477b1f6c89b051107e041a331f78e27Owen Anderson 224c2e8a7e8d2ab156afaa8ab0d0317dd9ee3db7d30David Goodwinbool ARMSubtarget::enablePostRAScheduler( 225c2e8a7e8d2ab156afaa8ab0d0317dd9ee3db7d30David Goodwin CodeGenOpt::Level OptLevel, 2265b1b4489cf3a0f56f8be0673fc5cc380a32d277bEvan Cheng TargetSubtargetInfo::AntiDepBreakMode& Mode, 22787d21b92fc42f6b3bd8567a83fc5b5191c1205e5David Goodwin RegClassVector& CriticalPathRCs) const { 2285b1b4489cf3a0f56f8be0673fc5cc380a32d277bEvan Cheng Mode = TargetSubtargetInfo::ANTIDEP_CRITICAL; 22987d21b92fc42f6b3bd8567a83fc5b5191c1205e5David Goodwin CriticalPathRCs.clear(); 23087d21b92fc42f6b3bd8567a83fc5b5191c1205e5David Goodwin CriticalPathRCs.push_back(&ARM::GPRRegClass); 231c2e8a7e8d2ab156afaa8ab0d0317dd9ee3db7d30David Goodwin return PostRAScheduler && OptLevel >= CodeGenOpt::Default; 232c2e8a7e8d2ab156afaa8ab0d0317dd9ee3db7d30David Goodwin} 233