CodeGenCommonISel.cpp File Reference

#include "llvm/CodeGen/CodeGenCommonISel.h"
#include "llvm/Analysis/BranchProbabilityInfo.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/IR/DebugInfoMetadata.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "codegen-common"

Functions
static bool	MIIsInTerminatorSequence (const MachineInstr &MI)
	Given that the input MI is before a partial terminator sequence TSeq, return true if M + TSeq also a partial terminator sequence.
static MachineOperand *	getSalvageOpsForCopy (const MachineRegisterInfo &MRI, MachineInstr &Copy)
static MachineOperand *	getSalvageOpsForTrunc (const MachineRegisterInfo &MRI, MachineInstr &Trunc, SmallVectorImpl< uint64_t > &Ops)
static MachineOperand *	salvageDebugInfoImpl (const MachineRegisterInfo &MRI, MachineInstr &MI, SmallVectorImpl< uint64_t > &Ops)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "codegen-common"

Definition at line 22 of file CodeGenCommonISel.cpp.

Function Documentation

getSalvageOpsForCopy()

static MachineOperand * getSalvageOpsForCopy ( const MachineRegisterInfo &  MRI, MachineInstr &  Copy  )

static

Definition at line 210 of file CodeGenCommonISel.cpp.

References assert().

Referenced by salvageDebugInfoImpl().

getSalvageOpsForTrunc()

static MachineOperand * getSalvageOpsForTrunc ( const MachineRegisterInfo &  MRI, MachineInstr &  Trunc, SmallVectorImpl< uint64_t > &  Ops  )

static

Definition at line 217 of file CodeGenCommonISel.cpp.

References llvm::SmallVectorImpl< T >::append(), assert(), llvm::MachineInstr::defs(), llvm::DIExpression::getExtOps(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), and MRI.

Referenced by salvageDebugInfoImpl().

MIIsInTerminatorSequence()

static bool MIIsInTerminatorSequence ( const MachineInstr &  MI )

static

Given that the input MI is before a partial terminator sequence TSeq, return true if M + TSeq also a partial terminator sequence.

A Terminator sequence is a sequence of MachineInstrs which at this point in lowering copy vregs into physical registers, which are then passed into terminator instructors so we can satisfy ABI constraints. A partial terminator sequence is an improper subset of a terminator sequence (i.e. it may be the whole terminator sequence).

Definition at line 53 of file CodeGenCommonISel.cpp.

References assert(), llvm::MachineOperand::getReg(), llvm::MachineOperand::isDef(), llvm::Register::isPhysical(), llvm::MachineOperand::isReg(), and MI.

Referenced by llvm::findSplitPointForStackProtector().

salvageDebugInfoImpl()

static MachineOperand * salvageDebugInfoImpl ( const MachineRegisterInfo &  MRI, MachineInstr &  MI, SmallVectorImpl< uint64_t > &  Ops  )

static

Definition at line 236 of file CodeGenCommonISel.cpp.

References getSalvageOpsForCopy(), getSalvageOpsForTrunc(), MI, and MRI.