LLVM 19.0.0git
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#include "Target/AArch64/AArch64RegisterInfo.h"
Definition at line 26 of file AArch64RegisterInfo.h.
Definition at line 42 of file AArch64RegisterInfo.cpp.
References llvm::AArch64_MC::initLLVMToCVRegMapping().
bool AArch64RegisterInfo::cannotEliminateFrame | ( | const MachineFunction & | MF | ) | const |
Definition at line 687 of file AArch64RegisterInfo.cpp.
References llvm::MachineFrameInfo::adjustsStack(), llvm::TargetOptions::DisableFramePointerElim(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getTarget(), llvm::MachineFrameInfo::hasVarSizedObjects(), llvm::MachineFrameInfo::isFrameAddressTaken(), and llvm::TargetMachine::Options.
Referenced by llvm::AArch64FrameLowering::determineCalleeSaves().
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Definition at line 872 of file AArch64RegisterInfo.cpp.
References llvm::AArch64FrameOffsetCanUpdate, llvm::AArch64FrameOffsetIsLegal, llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::BuildMI(), llvm::MachineOperand::ChangeToImmediate(), createScratchRegisterForInstruction(), llvm::MachineRegisterInfo::createVirtualRegister(), llvm::emitFrameOffset(), llvm::StackOffset::getFixed(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getInfo(), llvm::AArch64FrameLowering::getNonLocalFrameIndexReference(), llvm::MachineFrameInfo::getObjectOffset(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getRegInfo(), llvm::MachineFrameInfo::getStackSize(), llvm::MachineFunction::getSubtarget(), llvm::AArch64FunctionInfo::getTaggedBasePointerOffset(), llvm::MachineFrameInfo::hasVarSizedObjects(), llvm::isAArch64FrameOffsetLegal(), llvm::RegScavenger::isScavengingFrameIndex(), MBB, MI, llvm::AArch64II::MO_TAGGED, llvm::Offset, llvm::AArch64FrameLowering::resolveFrameIndexReference(), llvm::rewriteAArch64FrameIndex(), and TII.
void AArch64RegisterInfo::emitReservedArgRegCallError | ( | const MachineFunction & | MF | ) | const |
Definition at line 498 of file AArch64RegisterInfo.cpp.
References F, and llvm::MachineFunction::getFunction().
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Definition at line 374 of file AArch64RegisterInfo.cpp.
References llvm::AArch64InstPrinter::getRegisterName(), llvm::MachineFunction::getSubtarget(), hasBasePointer(), llvm::AArch64Subtarget::isWindowsArm64EC(), and llvm::MCRegisterInfo::regsOverlap().
unsigned AArch64RegisterInfo::getBaseRegister | ( | ) | const |
Definition at line 534 of file AArch64RegisterInfo.cpp.
Referenced by llvm::AArch64FrameLowering::determineCalleeSaves(), and getLocalAddressRegister().
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Code Generation virtual methods...
Definition at line 71 of file AArch64RegisterInfo.cpp.
References llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X0, llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X2, llvm::CallingConv::AArch64_SVE_VectorCall, llvm::CallingConv::AArch64_VectorCall, llvm::CallingConv::AnyReg, llvm::CallingConv::ARM64EC_Thunk_X64, assert(), llvm::CallingConv::CFGuard_Check, llvm::Function::getAttributes(), llvm::Function::getCallingConv(), getDarwinCalleeSavedRegs(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getInfo(), llvm::MachineFunction::getSubtarget(), llvm::AArch64Subtarget::getTargetLowering(), llvm::CallingConv::GHC, llvm::AttributeList::hasAttrSomewhere(), llvm::AArch64FunctionInfo::isSVECC(), llvm::AArch64Subtarget::isTargetDarwin(), llvm::AArch64Subtarget::isTargetWindows(), llvm::CallingConv::PreserveAll, llvm::CallingConv::PreserveMost, llvm::report_fatal_error(), llvm::AArch64TargetLowering::supportSwiftError(), llvm::CallingConv::SwiftTail, and llvm::CallingConv::Win64.
Referenced by UpdateCustomCalleeSavedRegs().
const MCPhysReg * AArch64RegisterInfo::getCalleeSavedRegsViaCopy | ( | const MachineFunction * | MF | ) | const |
Definition at line 183 of file AArch64RegisterInfo.cpp.
References assert(), llvm::CallingConv::CXX_FAST_TLS, llvm::Function::getCallingConv(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getInfo(), and llvm::AArch64FunctionInfo::isSplitCSR().
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Definition at line 257 of file AArch64RegisterInfo.cpp.
References llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X0, llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X2, llvm::CallingConv::AArch64_SVE_VectorCall, llvm::CallingConv::AArch64_VectorCall, llvm::CallingConv::AnyReg, CC, llvm::CallingConv::CFGuard_Check, llvm::Function::getAttributes(), getDarwinCallPreservedMask(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getSubtarget(), llvm::AArch64Subtarget::getTargetLowering(), llvm::CallingConv::GHC, llvm::AttributeList::hasAttrSomewhere(), llvm::Function::hasFnAttribute(), llvm::AArch64Subtarget::isTargetDarwin(), llvm::CallingConv::PreserveAll, llvm::CallingConv::PreserveMost, llvm::report_fatal_error(), llvm::AArch64TargetLowering::supportSwiftError(), and llvm::CallingConv::SwiftTail.
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Definition at line 528 of file AArch64RegisterInfo.cpp.
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Definition at line 56 of file AArch64RegisterInfo.h.
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Definition at line 305 of file AArch64RegisterInfo.cpp.
References llvm::MachineFunction::getSubtarget(), and llvm::AArch64Subtarget::isTargetLinux().
const MCPhysReg * AArch64RegisterInfo::getDarwinCalleeSavedRegs | ( | const MachineFunction * | MF | ) | const |
Definition at line 138 of file AArch64RegisterInfo.cpp.
References llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X0, llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X2, llvm::CallingConv::AArch64_SVE_VectorCall, llvm::CallingConv::AArch64_VectorCall, assert(), llvm::CallingConv::CFGuard_Check, llvm::CallingConv::CXX_FAST_TLS, llvm::Function::getAttributes(), llvm::Function::getCallingConv(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getInfo(), llvm::MachineFunction::getSubtarget(), llvm::AArch64Subtarget::getTargetLowering(), llvm::AttributeList::hasAttrSomewhere(), llvm::AArch64Subtarget::isTargetDarwin(), llvm::CallingConv::PreserveAll, llvm::CallingConv::PreserveMost, llvm::report_fatal_error(), llvm::AArch64TargetLowering::supportSwiftError(), llvm::CallingConv::SwiftTail, and llvm::CallingConv::Win64.
Referenced by getCalleeSavedRegs().
const uint32_t * AArch64RegisterInfo::getDarwinCallPreservedMask | ( | const MachineFunction & | MF, |
CallingConv::ID | CC | ||
) | const |
Definition at line 223 of file AArch64RegisterInfo.cpp.
References llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X0, llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X2, llvm::CallingConv::AArch64_SVE_VectorCall, llvm::CallingConv::AArch64_VectorCall, assert(), CC, llvm::CallingConv::CFGuard_Check, llvm::CallingConv::CXX_FAST_TLS, llvm::Function::getAttributes(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getSubtarget(), llvm::AArch64Subtarget::getTargetLowering(), llvm::AttributeList::hasAttrSomewhere(), llvm::AArch64Subtarget::isTargetDarwin(), llvm::CallingConv::PreserveAll, llvm::CallingConv::PreserveMost, llvm::report_fatal_error(), llvm::AArch64TargetLowering::supportSwiftError(), and llvm::CallingConv::SwiftTail.
Referenced by getCallPreservedMask().
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Definition at line 648 of file AArch64RegisterInfo.cpp.
References llvm::AArch64FrameLowering::hasFP().
Referenced by getLocalAddressRegister().
unsigned AArch64RegisterInfo::getLocalAddressRegister | ( | const MachineFunction & | MF | ) | const |
Definition at line 1012 of file AArch64RegisterInfo.cpp.
References getBaseRegister(), llvm::MachineFunction::getFrameInfo(), getFrameRegister(), and llvm::MachineFunction::hasEHFunclets().
Definition at line 349 of file AArch64RegisterInfo.cpp.
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Definition at line 845 of file AArch64RegisterInfo.cpp.
References llvm::SmallVectorImpl< T >::append(), llvm::DIExpression::appendOffset(), assert(), getDwarfRegNum(), llvm::Offset, and llvm::SmallVectorTemplateBase< T, bool >::push_back().
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Definition at line 522 of file AArch64RegisterInfo.cpp.
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Definition at line 965 of file AArch64RegisterInfo.cpp.
References llvm::TargetRegisterClass::getID(), llvm::AArch64Subtarget::getNumXRegisterReserved(), llvm::MachineFunction::getSubtarget(), hasBasePointer(), llvm::AArch64FrameLowering::hasFP(), and llvm::Triple::isOSDarwin().
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Definition at line 470 of file AArch64RegisterInfo.cpp.
References assert(), getStrictlyReservedRegs(), llvm::MachineFunction::getSubtarget(), llvm::AArch64Subtarget::isXRegisterReservedForRA(), and llvm::Reserved.
Referenced by isReservedReg().
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Definition at line 33 of file AArch64RegisterInfo.h.
Definition at line 340 of file AArch64RegisterInfo.cpp.
BitVector AArch64RegisterInfo::getStrictlyReservedRegs | ( | const MachineFunction & | MF | ) | const |
Definition at line 401 of file AArch64RegisterInfo.cpp.
References assert(), llvm::Function::getCallingConv(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getSubtarget(), llvm::CallingConv::GRAAL, hasBasePointer(), llvm::Function::hasFnAttribute(), llvm::AArch64FrameLowering::hasFP(), llvm::Triple::isOSDarwin(), llvm::AArch64Subtarget::isWindowsArm64EC(), llvm::AArch64Subtarget::isXRegisterReserved(), llvm::Reserved, and SubReg.
Referenced by getReservedRegs(), and isStrictlyReservedReg().
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Definition at line 210 of file AArch64RegisterInfo.cpp.
References Idx.
const uint32_t * AArch64RegisterInfo::getThisReturnPreservedMask | ( | const MachineFunction & | MF, |
CallingConv::ID | CC | ||
) | const |
getThisReturnPreservedMask - Returns a call preserved mask specific to the case that 'returned' is on an i64 first argument if the calling convention is one that can (partially) model this attribute with a preserved mask (i.e.
it is a calling convention that uses the same register for the first i64 argument and an i64 return value)
Should return NULL in the case that the calling convention does not have this property
Definition at line 354 of file AArch64RegisterInfo.cpp.
References assert(), CC, llvm::MachineFunction::getSubtarget(), llvm::CallingConv::GHC, and llvm::AArch64Subtarget::isTargetDarwin().
Definition at line 313 of file AArch64RegisterInfo.cpp.
References assert(), llvm::Triple::isOSBinFormatELF(), and llvm::Triple::isOSDarwin().
Stack probing calls preserve different CSRs to the normal CC.
Definition at line 369 of file AArch64RegisterInfo.cpp.
bool AArch64RegisterInfo::hasBasePointer | ( | const MachineFunction & | MF | ) | const |
Definition at line 536 of file AArch64RegisterInfo.cpp.
References llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getInfo(), llvm::MachineFrameInfo::getLocalFrameSize(), llvm::AArch64FunctionInfo::getStackSizeSVE(), llvm::MachineFunction::getSubtarget(), llvm::AArch64FunctionInfo::hasCalculatedStackSizeSVE(), llvm::MachineFunction::hasEHFunclets(), and llvm::MachineFrameInfo::hasVarSizedObjects().
Referenced by llvm::AArch64FrameLowering::determineCalleeSaves(), explainReservedReg(), getRegPressureLimit(), and getStrictlyReservedRegs().
bool AArch64RegisterInfo::isAnyArgRegReserved | ( | const MachineFunction & | MF | ) | const |
Definition at line 492 of file AArch64RegisterInfo.cpp.
References llvm::any_of(), and isStrictlyReservedReg().
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Definition at line 573 of file AArch64RegisterInfo.cpp.
References llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X0, llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X2, llvm::CallingConv::AArch64_SVE_VectorCall, llvm::CallingConv::AArch64_VectorCall, llvm::CallingConv::C, CC, llvm::CallingConv::CFGuard_Check, llvm::CallingConv::CXX_FAST_TLS, llvm::CallingConv::Fast, llvm::Function::getCallingConv(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getSubtarget(), llvm::CallingConv::GHC, llvm::is_contained(), llvm::AArch64Subtarget::isCallingConvWin64(), llvm::AArch64Subtarget::isTargetDarwin(), llvm::AArch64Subtarget::isTargetILP32(), llvm::AArch64Subtarget::isTargetWindows(), llvm::CallingConv::PreserveAll, llvm::CallingConv::PreserveMost, llvm::report_fatal_error(), llvm::CallingConv::Swift, llvm::CallingConv::SwiftTail, llvm::CallingConv::Tail, and llvm::CallingConv::Win64.
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Definition at line 505 of file AArch64RegisterInfo.cpp.
References llvm::MachineFunction::getFunction(), llvm::Function::hasFnAttribute(), isReservedReg(), and llvm::MCRegisterInfo::regsOverlap().
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Definition at line 762 of file AArch64RegisterInfo.cpp.
References llvm::AArch64FrameOffsetIsLegal, assert(), llvm::StackOffset::getFixed(), llvm::isAArch64FrameOffsetLegal(), MI, and llvm::Offset.
Referenced by needsFrameBaseReg().
bool AArch64RegisterInfo::isReservedReg | ( | const MachineFunction & | MF, |
MCRegister | Reg | ||
) | const |
Definition at line 482 of file AArch64RegisterInfo.cpp.
References getReservedRegs().
Referenced by llvm::AArch64FrameLowering::determineCalleeSaves(), and isAsmClobberable().
bool AArch64RegisterInfo::isStrictlyReservedReg | ( | const MachineFunction & | MF, |
MCRegister | Reg | ||
) | const |
Definition at line 487 of file AArch64RegisterInfo.cpp.
References getStrictlyReservedRegs().
Referenced by isAnyArgRegReserved().
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Insert defining instruction(s) for BaseReg to be a pointer to FrameIdx at the beginning of the basic block.
Definition at line 773 of file AArch64RegisterInfo.cpp.
References llvm::MachineInstrBuilder::addFrameIndex(), llvm::MachineInstrBuilder::addImm(), llvm::MachineBasicBlock::begin(), llvm::BuildMI(), DL, llvm::MachineBasicBlock::end(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getRegInfo(), llvm::AArch64_AM::getShifterImm(), llvm::MachineFunction::getSubtarget(), llvm::AArch64_AM::LSL, MBB, MRI, llvm::Offset, and TII.
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needsFrameBaseReg - Returns true if the instruction's frame index reference would be better served by a base register other than FP or SP.
Used by LocalStackFrameAllocation to determine which frame index references it should create new base registers for.
Definition at line 698 of file AArch64RegisterInfo.cpp.
References assert(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFrameInfo::getLocalFrameSize(), llvm::AArch64FrameLowering::hasFP(), isFrameOffsetLegal(), MI, and llvm::Offset.
Return whether the register needs a CFI entry.
Not all unwinders may know about SVE registers, so we assume the lowest common denominator, i.e. the callee-saves required by the base ABI. For the SVE registers z8-z15 only the lower 64-bits (d8-d15) need to be saved. The lower 64-bits subreg is returned in RegToUseForCFI
.
Definition at line 52 of file AArch64RegisterInfo.cpp.
References contains(), and I.
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Definition at line 681 of file AArch64RegisterInfo.cpp.
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Definition at line 653 of file AArch64RegisterInfo.cpp.
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Definition at line 658 of file AArch64RegisterInfo.cpp.
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Definition at line 797 of file AArch64RegisterInfo.cpp.
References assert(), llvm::Done, llvm::StackOffset::getFixed(), llvm::MachineFunction::getSubtarget(), MI, llvm::Offset, llvm::rewriteAArch64FrameIndex(), and TII.
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Definition at line 1073 of file AArch64RegisterInfo.cpp.
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SrcRC and DstRC will be morphed into NewRC if this returns true.
Definition at line 1023 of file AArch64RegisterInfo.cpp.
References llvm::any_of(), llvm::TargetRegisterClass::getID(), MI, MRI, and SubReg.
Definition at line 345 of file AArch64RegisterInfo.cpp.
void AArch64RegisterInfo::UpdateCustomCalleeSavedRegs | ( | MachineFunction & | MF | ) | const |
Definition at line 192 of file AArch64RegisterInfo.cpp.
References getCalleeSavedRegs(), llvm::MachineFunction::getRegInfo(), llvm::MachineFunction::getSubtarget(), I, llvm::AArch64Subtarget::isXRegCustomCalleeSaved(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::MachineRegisterInfo::setCalleeSavedRegs().
void AArch64RegisterInfo::UpdateCustomCallPreservedMask | ( | MachineFunction & | MF, |
const uint32_t ** | Mask | ||
) | const |
Definition at line 321 of file AArch64RegisterInfo.cpp.
References llvm::MachineFunction::allocateRegMask(), llvm::MachineOperand::getRegMaskSize(), llvm::MachineFunction::getSubtarget(), llvm::AArch64Subtarget::isXRegCustomCalleeSaved(), and SubReg.
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