AArch64RegisterBankInfo.cpp File Reference

This file implements the targeting of the RegisterBankInfo class for AArch64. More...

#include "AArch64RegisterBankInfo.h"
#include "AArch64InstrInfo.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/GlobalISel/RegisterBank.h"
#include "llvm/CodeGen/GlobalISel/RegisterBankInfo.h"
#include "llvm/CodeGen/LowLevelType.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/Support/ErrorHandling.h"
#include <algorithm>
#include <cassert>
#include "AArch64GenRegisterBank.inc"
#include "AArch64GenRegisterBankInfo.def"

Include dependency graph for AArch64RegisterBankInfo.cpp:

Go to the source code of this file.

Macros
#define	GET_TARGET_REGBANK_IMPL
#define	CHECK_PARTIALMAP(Idx, ValStartIdx, ValLength, RB)
#define	CHECK_VALUEMAP_IMPL(RBName, Size, Offset)
#define	CHECK_VALUEMAP(RBName, Size)   CHECK_VALUEMAP_IMPL(RBName, Size, 0)
#define	CHECK_VALUEMAP_3OPS(RBName, Size)
#define	CHECK_VALUEMAP_CROSSREGCPY(RBNameDst, RBNameSrc, Size)
#define	CHECK_VALUEMAP_FPEXT(DstSize, SrcSize)

Functions
static bool	isPreISelGenericFloatingPointOpcode (unsigned Opc)
	Returns whether opcode Opc is a pre-isel generic floating-point opcode, having only floating-point operands. More...

Detailed Description

This file implements the targeting of the RegisterBankInfo class for AArch64.

Todo:

This should be generated by TableGen.

Definition in file AArch64RegisterBankInfo.cpp.

Macro Definition Documentation

CHECK_PARTIALMAP

#define CHECK_PARTIALMAP	(		Idx,
			ValStartIdx,
			ValLength,
			RB
	)

Value:

do {                                                                         \
    assert(                                                                    \
        checkPartialMap(PartialMappingIdx::Idx, ValStartIdx, ValLength, RB) && \
        #Idx " is incorrectly initialized");                                   \
  } while (false)

Referenced by llvm::AArch64RegisterBankInfo::AArch64RegisterBankInfo().

CHECK_VALUEMAP

#define CHECK_VALUEMAP	(		RBName,
			Size
	)		CHECK_VALUEMAP_IMPL(RBName, Size, 0)

Referenced by llvm::AArch64RegisterBankInfo::AArch64RegisterBankInfo().

CHECK_VALUEMAP_3OPS

#define CHECK_VALUEMAP_3OPS	(		RBName,
			Size
	)

Value:

do {                                                                         \
    CHECK_VALUEMAP_IMPL(RBName, Size, 0);                                      \
    CHECK_VALUEMAP_IMPL(RBName, Size, 1);                                      \
    CHECK_VALUEMAP_IMPL(RBName, Size, 2);                                      \
  } while (false)

Referenced by llvm::AArch64RegisterBankInfo::AArch64RegisterBankInfo().

CHECK_VALUEMAP_CROSSREGCPY

#define CHECK_VALUEMAP_CROSSREGCPY	(		RBNameDst,
			RBNameSrc,
			Size
	)

Value:

do {                                                                         \
    unsigned PartialMapDstIdx = PMI_##RBNameDst##Size - PMI_Min;               \
    unsigned PartialMapSrcIdx = PMI_##RBNameSrc##Size - PMI_Min;               \
    (void)PartialMapDstIdx;                                                    \
    (void)PartialMapSrcIdx;                                                    \
    const ValueMapping *Map = getCopyMapping(                                  \
        AArch64::RBNameDst##RegBankID, AArch64::RBNameSrc##RegBankID, Size);  \
    (void)Map;                                                                 \
    assert(Map[0].BreakDown ==                                                 \
               &AArch64GenRegisterBankInfo::PartMappings[PartialMapDstIdx] &&  \
           Map[0].NumBreakDowns == 1 && #RBNameDst #Size                       \
           " Dst is incorrectly initialized");                                 \
    assert(Map[1].BreakDown ==                                                 \
               &AArch64GenRegisterBankInfo::PartMappings[PartialMapSrcIdx] &&  \
           Map[1].NumBreakDowns == 1 && #RBNameSrc #Size                       \
           " Src is incorrectly initialized");                                 \
                                                                               \
  } while (false)

Referenced by llvm::AArch64RegisterBankInfo::AArch64RegisterBankInfo().

CHECK_VALUEMAP_FPEXT

#define CHECK_VALUEMAP_FPEXT	(		DstSize,
			SrcSize
	)

Value:

do {                                                                         \
    unsigned PartialMapDstIdx = PMI_FPR##DstSize - PMI_Min;                    \
    unsigned PartialMapSrcIdx = PMI_FPR##SrcSize - PMI_Min;                    \
    (void)PartialMapDstIdx;                                                    \
    (void)PartialMapSrcIdx;                                                    \
    const ValueMapping *Map = getFPExtMapping(DstSize, SrcSize);               \
    (void)Map;                                                                 \
    assert(Map[0].BreakDown ==                                                 \
               &AArch64GenRegisterBankInfo::PartMappings[PartialMapDstIdx] &&  \
           Map[0].NumBreakDowns == 1 && "FPR" #DstSize                         \
                                        " Dst is incorrectly initialized");    \
    assert(Map[1].BreakDown ==                                                 \
               &AArch64GenRegisterBankInfo::PartMappings[PartialMapSrcIdx] &&  \
           Map[1].NumBreakDowns == 1 && "FPR" #SrcSize                         \
                                        " Src is incorrectly initialized");    \
                                                                               \
  } while (false)

Referenced by llvm::AArch64RegisterBankInfo::AArch64RegisterBankInfo().

CHECK_VALUEMAP_IMPL

#define CHECK_VALUEMAP_IMPL	(		RBName,
			Size,
			Offset
	)

Value:

do {                                                                         \
    assert(checkValueMapImpl(PartialMappingIdx::PMI_##RBName##Size,            \
                             PartialMappingIdx::PMI_First##RBName, Size,       \
                             Offset) &&                                        \
           #RBName #Size " " #Offset " is incorrectly initialized");           \
  } while (false)

GET_TARGET_REGBANK_IMPL

#define GET_TARGET_REGBANK_IMPL

Definition at line 32 of file AArch64RegisterBankInfo.cpp.

Function Documentation

isPreISelGenericFloatingPointOpcode()

static bool isPreISelGenericFloatingPointOpcode ( unsigned  Opc )

static

Returns whether opcode Opc is a pre-isel generic floating-point opcode, having only floating-point operands.

Definition at line 383 of file AArch64RegisterBankInfo.cpp.

References assert(), llvm::RegisterBankInfo::DefaultMappingID, llvm::RegisterBankInfo::getInstructionMapping(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), llvm::AArch64GenRegisterBankInfo::getRegBankBaseIdxOffset(), llvm::MachineFunction::getRegInfo(), llvm::LLT::getSizeInBits(), llvm::MachineRegisterInfo::getType(), llvm::AArch64GenRegisterBankInfo::getValueMapping(), llvm::LLT::isVector(), MI, MRI, llvm::AArch64GenRegisterBankInfo::PMI_FirstFPR, llvm::AArch64GenRegisterBankInfo::PMI_FirstGPR, and Size.

Referenced by llvm::AArch64RegisterBankInfo::getInstrMapping().