LLVM 20.0.0git
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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 732 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 917 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(), II, 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 537 of file AArch64RegisterInfo.cpp.
References F, and llvm::MachineFunction::getFunction().
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Definition at line 401 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 573 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_X1, 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::CallingConv::PreserveNone, 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 205 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 280 of file AArch64RegisterInfo.cpp.
References llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X0, llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X1, 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::CallingConv::PreserveNone, llvm::report_fatal_error(), llvm::AArch64TargetLowering::supportSwiftError(), and llvm::CallingConv::SwiftTail.
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Definition at line 567 of file AArch64RegisterInfo.cpp.
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Definition at line 56 of file AArch64RegisterInfo.h.
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Definition at line 332 of file AArch64RegisterInfo.cpp.
References llvm::MachineFunction::getSubtarget(), and llvm::AArch64Subtarget::isTargetLinux().
const MCPhysReg * AArch64RegisterInfo::getDarwinCalleeSavedRegs | ( | const MachineFunction * | MF | ) | const |
Definition at line 149 of file AArch64RegisterInfo.cpp.
References llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X0, llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X1, 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::AArch64FunctionInfo::isSVECC(), 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 245 of file AArch64RegisterInfo.cpp.
References llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X0, llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X1, 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 693 of file AArch64RegisterInfo.cpp.
References llvm::AArch64FrameLowering::hasFP().
Referenced by getLocalAddressRegister().
unsigned AArch64RegisterInfo::getLocalAddressRegister | ( | const MachineFunction & | MF | ) | const |
Definition at line 1057 of file AArch64RegisterInfo.cpp.
References getBaseRegister(), llvm::MachineFunction::getFrameInfo(), getFrameRegister(), and llvm::MachineFunction::hasEHFunclets().
Definition at line 376 of file AArch64RegisterInfo.cpp.
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Definition at line 890 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 561 of file AArch64RegisterInfo.cpp.
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Definition at line 1010 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 498 of file AArch64RegisterInfo.cpp.
References assert(), llvm::MachineFunction::getProperties(), getStrictlyReservedRegs(), llvm::MachineFunction::getSubtarget(), llvm::MachineFunctionProperties::hasProperty(), llvm::AArch64Subtarget::isLRReservedForRA(), llvm::AArch64Subtarget::isXRegisterReservedForRA(), llvm::MachineFunctionProperties::NoVRegs, and llvm::Reserved.
Referenced by isReservedReg().
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Definition at line 33 of file AArch64RegisterInfo.h.
Definition at line 367 of file AArch64RegisterInfo.cpp.
BitVector AArch64RegisterInfo::getStrictlyReservedRegs | ( | const MachineFunction & | MF | ) | const |
Definition at line 428 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 232 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 381 of file AArch64RegisterInfo.cpp.
References assert(), CC, llvm::MachineFunction::getSubtarget(), llvm::CallingConv::GHC, and llvm::AArch64Subtarget::isTargetDarwin().
Definition at line 340 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 396 of file AArch64RegisterInfo.cpp.
bool AArch64RegisterInfo::hasBasePointer | ( | const MachineFunction & | MF | ) | const |
Definition at line 575 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 531 of file AArch64RegisterInfo.cpp.
References llvm::any_of(), and isStrictlyReservedReg().
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Definition at line 612 of file AArch64RegisterInfo.cpp.
References llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X0, llvm::CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X1, 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::Function::isVarArg(), llvm::CallingConv::PreserveAll, llvm::CallingConv::PreserveMost, llvm::CallingConv::PreserveNone, llvm::report_fatal_error(), llvm::CallingConv::Swift, llvm::CallingConv::SwiftTail, llvm::CallingConv::Tail, and llvm::CallingConv::Win64.
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Definition at line 544 of file AArch64RegisterInfo.cpp.
References llvm::MachineFunction::getFunction(), llvm::Function::hasFnAttribute(), isReservedReg(), and llvm::MCRegisterInfo::regsOverlap().
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Definition at line 807 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 521 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 526 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 818 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 743 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 726 of file AArch64RegisterInfo.cpp.
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Definition at line 698 of file AArch64RegisterInfo.cpp.
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Definition at line 703 of file AArch64RegisterInfo.cpp.
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Definition at line 842 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 1118 of file AArch64RegisterInfo.cpp.
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SrcRC and DstRC will be morphed into NewRC if this returns true.
Definition at line 1068 of file AArch64RegisterInfo.cpp.
References llvm::any_of(), llvm::TargetRegisterClass::getID(), MI, MRI, and SubReg.
Definition at line 372 of file AArch64RegisterInfo.cpp.
void AArch64RegisterInfo::UpdateCustomCalleeSavedRegs | ( | MachineFunction & | MF | ) | const |
Definition at line 214 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 348 of file AArch64RegisterInfo.cpp.
References llvm::MachineFunction::allocateRegMask(), llvm::MachineOperand::getRegMaskSize(), llvm::MachineFunction::getSubtarget(), llvm::AArch64Subtarget::isXRegCustomCalleeSaved(), and SubReg.
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