InlineAsmLowering.cpp File Reference

This file implements the lowering from LLVM IR inline asm to MIR INLINEASM. More...

#include "llvm/CodeGen/GlobalISel/InlineAsmLowering.h"
#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/Module.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "inline-asm-lowering"

Functions
static void	emitInlineAsmError (MachineIRBuilder &MIRBuilder, const CallBase &Call, const Twine &Message, ArrayRef< Register > ResRegs)
	Emit an inline asm error diagnostic and materialize undef values for the call results so that the rest of the function remains well-formed.
static void	getRegistersForValue (MachineFunction &MF, MachineIRBuilder &MIRBuilder, GISelAsmOperandInfo &OpInfo, GISelAsmOperandInfo &RefOpInfo)
	Assign virtual/physical registers for the specified register operand.
static void	computeConstraintToUse (const TargetLowering *TLI, TargetLowering::AsmOperandInfo &OpInfo)
static unsigned	getNumOpRegs (const MachineInstr &I, unsigned OpIdx)
static bool	buildAnyextOrCopy (Register Dst, Register Src, MachineIRBuilder &MIRBuilder)

Detailed Description

This file implements the lowering from LLVM IR inline asm to MIR INLINEASM.

Definition in file InlineAsmLowering.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "inline-asm-lowering"

Definition at line 23 of file InlineAsmLowering.cpp.

Function Documentation

buildAnyextOrCopy()

bool buildAnyextOrCopy ( Register Dst, Register Src, MachineIRBuilder & MIRBuilder )

static

Definition at line 196 of file InlineAsmLowering.cpp.

References llvm::MachineIRBuilder::buildAnyExt(), llvm::MachineIRBuilder::buildCopy(), llvm::dbgs(), llvm::MachineIRBuilder::getMF(), llvm::MachineIRBuilder::getMRI(), llvm::MachineInstrBuilder::getReg(), llvm::TargetSubtargetInfo::getRegisterInfo(), llvm::MachineFunction::getSubtarget(), llvm::MachineRegisterInfo::getType(), LLVM_DEBUG, llvm::LLT::scalar(), and TRI.

Referenced by llvm::InlineAsmLowering::lowerInlineAsm().

computeConstraintToUse()

void computeConstraintToUse ( const TargetLowering * TLI, TargetLowering::AsmOperandInfo & OpInfo )

static

Definition at line 150 of file InlineAsmLowering.cpp.

References assert(), llvm::TargetLowering::C_Immediate, llvm::TargetLowering::C_Other, E(), G, llvm::TargetLowering::getConstraintPreferences(), llvm::TargetLowering::getConstraintType(), llvm::isa(), and llvm::TargetLowering::LowerXConstraint().

Referenced by determineConstraints(), and llvm::InlineAsmLowering::lowerInlineAsm().

emitInlineAsmError()

void emitInlineAsmError ( MachineIRBuilder & MIRBuilder, const CallBase & Call, const Twine & Message, ArrayRef< Register > ResRegs )

static

Emit an inline asm error diagnostic and materialize undef values for the call results so that the rest of the function remains well-formed.

Definition at line 31 of file InlineAsmLowering.cpp.

References llvm::MachineIRBuilder::buildUndef(), Call, and Reg.

Referenced by llvm::InlineAsmLowering::lowerInlineAsm().

getNumOpRegs()

unsigned getNumOpRegs ( const MachineInstr & I, unsigned OpIdx )

static

Definition at line 191 of file InlineAsmLowering.cpp.

References F, I, and OpIdx.

Referenced by llvm::InlineAsmLowering::lowerInlineAsm().

getRegistersForValue()

void getRegistersForValue ( MachineFunction & MF, MachineIRBuilder & MIRBuilder, GISelAsmOperandInfo & OpInfo, GISelAsmOperandInfo & RefOpInfo )

static

Assign virtual/physical registers for the specified register operand.

Definition at line 94 of file InlineAsmLowering.cpp.

References assert(), llvm::TargetRegisterClass::begin(), llvm::TargetLowering::C_Memory, llvm::TargetRegisterClass::end(), llvm::Function::getContext(), llvm::MachineFunction::getFunction(), llvm::TargetLoweringBase::getNumRegisters(), llvm::TargetLowering::getRegForInlineAsmConstraint(), llvm::MachineFunction::getRegInfo(), llvm::TargetSubtargetInfo::getRegisterInfo(), llvm::MachineFunction::getSubtarget(), llvm::TargetSubtargetInfo::getTargetLowering(), I, Register, and TRI.

Referenced by llvm::InlineAsmLowering::lowerInlineAsm(), and prepareDAGLevelOperands().