LLVM: lib/Target/AArch64/GISel/AArch64CallLowering.cpp File Reference (original) (raw)
This file implements the lowering of LLVM calls to machine code calls for GlobalISel. More...
Go to the source code of this file.
| Macros | |
|---|---|
| #define | DEBUG_TYPE "aarch64-call-lowering" |
| Functions | |
|---|---|
| static void | applyStackPassedSmallTypeDAGHack (EVT OrigVT, MVT &ValVT, MVT &LocVT) |
| static LLT | getStackValueStoreTypeHack (const CCValAssign &VA) |
| static bool | doesCalleeRestoreStack (CallingConv::ID CallConv, bool TailCallOpt) |
| static void | handleMustTailForwardedRegisters (MachineIRBuilder &MIRBuilder, CCAssignFn *AssignFn) |
| Helper function to compute forwarded registers for musttail calls. | |
| static bool | canGuaranteeTCO (CallingConv::ID CC, bool GuaranteeTailCalls) |
| Return true if the calling convention is one that we can guarantee TCO for. | |
| static bool | mayTailCallThisCC (CallingConv::ID CC) |
| Return true if we might ever do TCO for calls with this calling convention. | |
| static std::pair< CCAssignFn *, CCAssignFn * > | getAssignFnsForCC (CallingConv::ID CC, const AArch64TargetLowering &TLI) |
| Returns a pair containing the fixed CCAssignFn and the vararg CCAssignFn for CC. | |
| static unsigned | getCallOpcode (const MachineFunction &CallerF, bool IsIndirect, bool IsTailCall, std::optional< CallLowering::PtrAuthInfo > &PAI, MachineRegisterInfo &MRI) |
| static const uint32_t * | getMaskForArgs (SmallVectorImpl< AArch64CallLowering::ArgInfo > &OutArgs, AArch64CallLowering::CallLoweringInfo &Info, const AArch64RegisterInfo &TRI, MachineFunction &MF) |
This file implements the lowering of LLVM calls to machine code calls for GlobalISel.
Definition in file AArch64CallLowering.cpp.
◆ DEBUG_TYPE
#define DEBUG_TYPE "aarch64-call-lowering"
◆ applyStackPassedSmallTypeDAGHack()
| void applyStackPassedSmallTypeDAGHack ( EVT OrigVT, MVT & ValVT, MVT & LocVT ) | static |
|---|
◆ canGuaranteeTCO()
◆ doesCalleeRestoreStack()
◆ getAssignFnsForCC()
◆ getCallOpcode()
Definition at line 1071 of file AArch64CallLowering.cpp.
References assert(), llvm::AArch64FunctionInfo::branchProtectionPAuthLR(), llvm::AArch64FunctionInfo::branchTargetEnforcement(), llvm::getBLRCallOpcode(), llvm::MachineFunction::getInfo(), llvm::AArch64PACKey::IA, llvm::AArch64PACKey::IB, and MRI.
Referenced by llvm::AArch64CallLowering::lowerCall(), llvm::AMDGPUCallLowering::lowerCall(), llvm::ARMCallLowering::lowerCall(), and llvm::AMDGPUCallLowering::lowerTailCall().
◆ getMaskForArgs()
◆ getStackValueStoreTypeHack()
◆ handleMustTailForwardedRegisters()
| void handleMustTailForwardedRegisters ( MachineIRBuilder & MIRBuilder, CCAssignFn * AssignFn ) | static |
|---|
Helper function to compute forwarded registers for musttail calls.
Computes the forwarded registers, sets MBB liveness, and emits COPY instructions that can be used to save + restore registers later.
Definition at line 538 of file AArch64CallLowering.cpp.
References llvm::MachineFunction::addLiveIn(), llvm::CCState::analyzeMustTailForwardedRegisters(), assert(), llvm::MachineIRBuilder::buildCopy(), F, llvm::AArch64FunctionInfo::getForwardedMustTailRegParms(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getInfo(), llvm::MachineIRBuilder::getMBB(), llvm::MachineIRBuilder::getMF(), llvm::MachineFrameInfo::hasMustTailInVarArgFunc(), llvm::CCState::isAllocated(), MBB, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and Register.
Referenced by llvm::AArch64CallLowering::lowerFormalArguments().