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RISC architectures get their memory operand folding for free.

Browse Source 
The only folding these load/store architectures can do is converting COPY into a
load or store, and the target independent part of foldMemoryOperand already
knows how to do that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108099 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2010-07-11 19:19:13 +00:00
parent a66450d227
commit 600f171486
16 changed files with 0 additions and 812 deletions
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217
lib/Target/ARM/ARMBaseInstrInfo.cpp
View File

@ -949,223 +949,6 @@ ARMBaseInstrInfo::emitFrameIndexDebugValue(MachineFunction &MF,
return &*MIB;
}
MachineInstr *ARMBaseInstrInfo::
foldMemoryOperandImpl(MachineFunction &MF, MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops, int FI) const {
if (Ops.size() != 1) return NULL;
unsigned OpNum = Ops[0];
unsigned Opc = MI->getOpcode();
MachineInstr *NewMI = NULL;
if (Opc == ARM::MOVr || Opc == ARM::t2MOVr) {
// If it is updating CPSR, then it cannot be folded.
if (MI->getOperand(4).getReg() == ARM::CPSR && !MI->getOperand(4).isDead())
return NULL;
unsigned Pred = MI->getOperand(2).getImm();
unsigned PredReg = MI->getOperand(3).getReg();
if (OpNum == 0) { // move -> store
unsigned SrcReg = MI->getOperand(1).getReg();
unsigned SrcSubReg = MI->getOperand(1).getSubReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(1).isUndef();
if (Opc == ARM::MOVr)
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::STR))
.addReg(SrcReg,
getKillRegState(isKill) | getUndefRegState(isUndef),
SrcSubReg)
.addFrameIndex(FI).addReg(0).addImm(0).addImm(Pred).addReg(PredReg);
else // ARM::t2MOVr
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::t2STRi12))
.addReg(SrcReg,
getKillRegState(isKill) | getUndefRegState(isUndef),
SrcSubReg)
.addFrameIndex(FI).addImm(0).addImm(Pred).addReg(PredReg);
} else { // move -> load
unsigned DstReg = MI->getOperand(0).getReg();
unsigned DstSubReg = MI->getOperand(0).getSubReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
if (Opc == ARM::MOVr)
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::LDR))
.addReg(DstReg,
RegState::Define |
getDeadRegState(isDead) |
getUndefRegState(isUndef), DstSubReg)
.addFrameIndex(FI).addReg(0).addImm(0).addImm(Pred).addReg(PredReg);
else // ARM::t2MOVr
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::t2LDRi12))
.addReg(DstReg,
RegState::Define |
getDeadRegState(isDead) |
getUndefRegState(isUndef), DstSubReg)
.addFrameIndex(FI).addImm(0).addImm(Pred).addReg(PredReg);
}
} else if (Opc == ARM::tMOVgpr2gpr ||
Opc == ARM::tMOVtgpr2gpr ||
Opc == ARM::tMOVgpr2tgpr) {
if (OpNum == 0) { // move -> store
unsigned SrcReg = MI->getOperand(1).getReg();
unsigned SrcSubReg = MI->getOperand(1).getSubReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(1).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::t2STRi12))
.addReg(SrcReg,
getKillRegState(isKill) | getUndefRegState(isUndef),
SrcSubReg)
.addFrameIndex(FI).addImm(0).addImm(ARMCC::AL).addReg(0);
} else { // move -> load
unsigned DstReg = MI->getOperand(0).getReg();
unsigned DstSubReg = MI->getOperand(0).getSubReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::t2LDRi12))
.addReg(DstReg,
RegState::Define |
getDeadRegState(isDead) |
getUndefRegState(isUndef),
DstSubReg)
.addFrameIndex(FI).addImm(0).addImm(ARMCC::AL).addReg(0);
}
} else if (Opc == ARM::VMOVS) {
unsigned Pred = MI->getOperand(2).getImm();
unsigned PredReg = MI->getOperand(3).getReg();
if (OpNum == 0) { // move -> store
unsigned SrcReg = MI->getOperand(1).getReg();
unsigned SrcSubReg = MI->getOperand(1).getSubReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(1).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::VSTRS))
.addReg(SrcReg, getKillRegState(isKill) | getUndefRegState(isUndef),
SrcSubReg)
.addFrameIndex(FI)
.addImm(0).addImm(Pred).addReg(PredReg);
} else { // move -> load
unsigned DstReg = MI->getOperand(0).getReg();
unsigned DstSubReg = MI->getOperand(0).getSubReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::VLDRS))
.addReg(DstReg,
RegState::Define |
getDeadRegState(isDead) |
getUndefRegState(isUndef),
DstSubReg)
.addFrameIndex(FI).addImm(0).addImm(Pred).addReg(PredReg);
}
} else if (Opc == ARM::VMOVD || Opc == ARM::VMOVDneon) {
unsigned Pred = MI->getOperand(2).getImm();
unsigned PredReg = MI->getOperand(3).getReg();
if (OpNum == 0) { // move -> store
unsigned SrcReg = MI->getOperand(1).getReg();
unsigned SrcSubReg = MI->getOperand(1).getSubReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(1).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::VSTRD))
.addReg(SrcReg,
getKillRegState(isKill) | getUndefRegState(isUndef),
SrcSubReg)
.addFrameIndex(FI).addImm(0).addImm(Pred).addReg(PredReg);
} else { // move -> load
unsigned DstReg = MI->getOperand(0).getReg();
unsigned DstSubReg = MI->getOperand(0).getSubReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::VLDRD))
.addReg(DstReg,
RegState::Define |
getDeadRegState(isDead) |
getUndefRegState(isUndef),
DstSubReg)
.addFrameIndex(FI).addImm(0).addImm(Pred).addReg(PredReg);
}
} else if (Opc == ARM::VMOVQ) {
MachineFrameInfo &MFI = *MF.getFrameInfo();
unsigned Pred = MI->getOperand(2).getImm();
unsigned PredReg = MI->getOperand(3).getReg();
if (OpNum == 0) { // move -> store
unsigned SrcReg = MI->getOperand(1).getReg();
unsigned SrcSubReg = MI->getOperand(1).getSubReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(1).isUndef();
if (MFI.getObjectAlignment(FI) >= 16 &&
getRegisterInfo().canRealignStack(MF)) {
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::VST1q))
.addFrameIndex(FI).addImm(16)
.addReg(SrcReg,
getKillRegState(isKill) | getUndefRegState(isUndef),
SrcSubReg)
.addImm(Pred).addReg(PredReg);
} else {
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::VSTMQ))
.addReg(SrcReg,
getKillRegState(isKill) | getUndefRegState(isUndef),
SrcSubReg)
.addFrameIndex(FI).addImm(ARM_AM::getAM5Opc(ARM_AM::ia, 4))
.addImm(Pred).addReg(PredReg);
}
} else { // move -> load
unsigned DstReg = MI->getOperand(0).getReg();
unsigned DstSubReg = MI->getOperand(0).getSubReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
if (MFI.getObjectAlignment(FI) >= 16 &&
getRegisterInfo().canRealignStack(MF)) {
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::VLD1q))
.addReg(DstReg,
RegState::Define |
getDeadRegState(isDead) |
getUndefRegState(isUndef),
DstSubReg)
.addFrameIndex(FI).addImm(16).addImm(Pred).addReg(PredReg);
} else {
NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::VLDMQ))
.addReg(DstReg,
RegState::Define |
getDeadRegState(isDead) |
getUndefRegState(isUndef),
DstSubReg)
.addFrameIndex(FI).addImm(ARM_AM::getAM5Opc(ARM_AM::ia, 4))
.addImm(Pred).addReg(PredReg);
}
}
}
return NewMI;
}
MachineInstr*
ARMBaseInstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
MachineInstr* LoadMI) const {
// FIXME
return 0;
}
bool
ARMBaseInstrInfo::canFoldMemoryOperand(const MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops) const {
if (Ops.size() != 1) return false;
unsigned Opc = MI->getOpcode();
if (Opc == ARM::MOVr || Opc == ARM::t2MOVr) {
// If it is updating CPSR, then it cannot be folded.
return MI->getOperand(4).getReg() != ARM::CPSR ||
MI->getOperand(4).isDead();
} else if (Opc == ARM::tMOVgpr2gpr ||
Opc == ARM::tMOVtgpr2gpr ||
Opc == ARM::tMOVgpr2tgpr) {
return true;
} else if (Opc == ARM::VMOVS || Opc == ARM::VMOVD ||
Opc == ARM::VMOVDneon || Opc == ARM::VMOVQ) {
return true;
}
// FIXME: VMOVQQ and VMOVQQQQ?
return TargetInstrInfoImpl::canFoldMemoryOperand(MI, Ops);
}
/// Create a copy of a const pool value. Update CPI to the new index and return
/// the label UID.
static unsigned duplicateCPV(MachineFunction &MF, unsigned &CPI) {

13
lib/Target/ARM/ARMBaseInstrInfo.h
View File

@ -296,19 +296,6 @@ public:
const MDNode *MDPtr,
DebugLoc DL) const;
virtual bool canFoldMemoryOperand(const MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
MachineInstr* LoadMI) const;
virtual void reMaterialize(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned DestReg, unsigned SubIdx,

76
lib/Target/ARM/Thumb1InstrInfo.cpp
View File

@ -53,39 +53,6 @@ void Thumb1InstrInfo::copyPhysReg(MachineBasicBlock &MBB,
"Thumb1 can only copy GPR registers");
}
bool Thumb1InstrInfo::
canFoldMemoryOperand(const MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops) const {
if (Ops.size() != 1) return false;
unsigned OpNum = Ops[0];
unsigned Opc = MI->getOpcode();
switch (Opc) {
default: break;
case ARM::tMOVr:
case ARM::tMOVtgpr2gpr:
case ARM::tMOVgpr2tgpr:
case ARM::tMOVgpr2gpr: {
if (OpNum == 0) { // move -> store
unsigned SrcReg = MI->getOperand(1).getReg();
if (TargetRegisterInfo::isPhysicalRegister(SrcReg) &&
!isARMLowRegister(SrcReg))
// tSpill cannot take a high register operand.
return false;
} else { // move -> load
unsigned DstReg = MI->getOperand(0).getReg();
if (TargetRegisterInfo::isPhysicalRegister(DstReg) &&
!isARMLowRegister(DstReg))
// tRestore cannot target a high register operand.
return false;
}
return true;
}
}
return false;
}
void Thumb1InstrInfo::
storeRegToStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
unsigned SrcReg, bool isKill, int FI,
@ -214,46 +181,3 @@ restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
return true;
}
MachineInstr *Thumb1InstrInfo::
foldMemoryOperandImpl(MachineFunction &MF, MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops, int FI) const {
if (Ops.size() != 1) return NULL;
unsigned OpNum = Ops[0];
unsigned Opc = MI->getOpcode();
MachineInstr *NewMI = NULL;
switch (Opc) {
default: break;
case ARM::tMOVr:
case ARM::tMOVtgpr2gpr:
case ARM::tMOVgpr2tgpr:
case ARM::tMOVgpr2gpr: {
if (OpNum == 0) { // move -> store
unsigned SrcReg = MI->getOperand(1).getReg();
bool isKill = MI->getOperand(1).isKill();
if (TargetRegisterInfo::isPhysicalRegister(SrcReg) &&
!isARMLowRegister(SrcReg))
// tSpill cannot take a high register operand.
break;
NewMI = AddDefaultPred(BuildMI(MF, MI->getDebugLoc(), get(ARM::tSpill))
.addReg(SrcReg, getKillRegState(isKill))
.addFrameIndex(FI).addImm(0));
} else { // move -> load
unsigned DstReg = MI->getOperand(0).getReg();
if (TargetRegisterInfo::isPhysicalRegister(DstReg) &&
!isARMLowRegister(DstReg))
// tRestore cannot target a high register operand.
break;
bool isDead = MI->getOperand(0).isDead();
NewMI = AddDefaultPred(BuildMI(MF, MI->getDebugLoc(), get(ARM::tRestore))
.addReg(DstReg,
RegState::Define | getDeadRegState(isDead))
.addFrameIndex(FI).addImm(0));
}
break;
}
}
return NewMI;
}

14
lib/Target/ARM/Thumb1InstrInfo.h
View File

@ -62,20 +62,6 @@ public:
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const;
bool canFoldMemoryOperand(const MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops) const;
MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const;
MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
MachineInstr* LoadMI) const {
return 0;
}
};
}

45
lib/Target/Alpha/AlphaInstrInfo.cpp
View File

@ -215,51 +215,6 @@ AlphaInstrInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
llvm_unreachable("Unhandled register class");
}
MachineInstr *AlphaInstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const {
if (Ops.size() != 1) return NULL;
// Make sure this is a reg-reg copy.
unsigned Opc = MI->getOpcode();
MachineInstr *NewMI = NULL;
switch(Opc) {
default:
break;
case Alpha::BISr:
case Alpha::CPYSS:
case Alpha::CPYST:
if (MI->getOperand(1).getReg() == MI->getOperand(2).getReg()) {
if (Ops[0] == 0) { // move -> store
unsigned InReg = MI->getOperand(1).getReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(1).isUndef();
Opc = (Opc == Alpha::BISr) ? Alpha::STQ :
((Opc == Alpha::CPYSS) ? Alpha::STS : Alpha::STT);
NewMI = BuildMI(MF, MI->getDebugLoc(), get(Opc))
.addReg(InReg, getKillRegState(isKill) | getUndefRegState(isUndef))
.addFrameIndex(FrameIndex)
.addReg(Alpha::F31);
} else { // load -> move
unsigned OutReg = MI->getOperand(0).getReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
Opc = (Opc == Alpha::BISr) ? Alpha::LDQ :
((Opc == Alpha::CPYSS) ? Alpha::LDS : Alpha::LDT);
NewMI = BuildMI(MF, MI->getDebugLoc(), get(Opc))
.addReg(OutReg, RegState::Define | getDeadRegState(isDead) |
getUndefRegState(isUndef))
.addFrameIndex(FrameIndex)
.addReg(Alpha::F31);
}
}
break;
}
return NewMI;
}
static unsigned AlphaRevCondCode(unsigned Opcode) {
switch (Opcode) {
case Alpha::BEQ: return Alpha::BNE;

12
lib/Target/Alpha/AlphaInstrInfo.h
View File

@ -61,18 +61,6 @@ public:
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
MachineInstr* LoadMI) const {
return 0;
}
bool AnalyzeBranch(MachineBasicBlock &MBB,MachineBasicBlock *&TBB,
MachineBasicBlock *&FBB,
SmallVectorImpl<MachineOperand> &Cond,

82
lib/Target/CellSPU/SPUInstrInfo.cpp
View File

@ -332,88 +332,6 @@ SPUInstrInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
addFrameReference(BuildMI(MBB, MI, DL, get(opc), DestReg), FrameIdx);
}
//! Return true if the specified load or store can be folded
bool
SPUInstrInfo::canFoldMemoryOperand(const MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops) const {
if (Ops.size() != 1) return false;
// Make sure this is a reg-reg copy.
unsigned Opc = MI->getOpcode();
switch (Opc) {
case SPU::ORv16i8:
case SPU::ORv8i16:
case SPU::ORv4i32:
case SPU::ORv2i64:
case SPU::ORr8:
case SPU::ORr16:
case SPU::ORr32:
case SPU::ORr64:
case SPU::ORf32:
case SPU::ORf64:
if (MI->getOperand(1).getReg() == MI->getOperand(2).getReg())
return true;
break;
}
return false;
}
/// foldMemoryOperand - SPU, like PPC, can only fold spills into
/// copy instructions, turning them into load/store instructions.
MachineInstr *
SPUInstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const
{
if (Ops.size() != 1) return 0;
unsigned OpNum = Ops[0];
unsigned Opc = MI->getOpcode();
MachineInstr *NewMI = 0;
switch (Opc) {
case SPU::ORv16i8:
case SPU::ORv8i16:
case SPU::ORv4i32:
case SPU::ORv2i64:
case SPU::ORr8:
case SPU::ORr16:
case SPU::ORr32:
case SPU::ORr64:
case SPU::ORf32:
case SPU::ORf64:
if (OpNum == 0) { // move -> store
unsigned InReg = MI->getOperand(1).getReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(1).isUndef();
if (FrameIndex < SPUFrameInfo::maxFrameOffset()) {
MachineInstrBuilder MIB = BuildMI(MF, MI->getDebugLoc(),
get(SPU::STQDr32));
MIB.addReg(InReg, getKillRegState(isKill) | getUndefRegState(isUndef));
NewMI = addFrameReference(MIB, FrameIndex);
}
} else { // move -> load
unsigned OutReg = MI->getOperand(0).getReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
MachineInstrBuilder MIB = BuildMI(MF, MI->getDebugLoc(), get(Opc));
MIB.addReg(OutReg, RegState::Define | getDeadRegState(isDead) |
getUndefRegState(isUndef));
Opc = (FrameIndex < SPUFrameInfo::maxFrameOffset())
? SPU::STQDr32 : SPU::STQXr32;
NewMI = addFrameReference(MIB, FrameIndex);
break;
}
}
return NewMI;
}
//! Branch analysis
/*!
\note This code was kiped from PPC. There may be more branch analysis for

18
lib/Target/CellSPU/SPUInstrInfo.h
View File

@ -23,19 +23,6 @@ namespace llvm {
class SPUInstrInfo : public TargetInstrInfoImpl {
SPUTargetMachine &TM;
const SPURegisterInfo RI;
protected:
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
MachineInstr* LoadMI) const {
return 0;
}
public:
explicit SPUInstrInfo(SPUTargetMachine &tm);
@ -75,11 +62,6 @@ namespace llvm {
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const;
//! Return true if the specified load or store can be folded
virtual
bool canFoldMemoryOperand(const MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops) const;
//! Reverses a branch's condition, returning false on success.
virtual
bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const;

38
lib/Target/MBlaze/MBlazeInstrInfo.cpp
View File

@ -139,44 +139,6 @@ loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
.addImm(0).addFrameIndex(FI);
}
MachineInstr *MBlazeInstrInfo::
foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops, int FI) const {
if (Ops.size() != 1) return NULL;
MachineInstr *NewMI = NULL;
switch (MI->getOpcode()) {
case MBlaze::OR:
case MBlaze::ADD:
if ((MI->getOperand(0).isReg()) &&
(MI->getOperand(2).isReg()) &&
(MI->getOperand(2).getReg() == MBlaze::R0) &&
(MI->getOperand(1).isReg())) {
if (Ops[0] == 0) { // COPY -> STORE
unsigned SrcReg = MI->getOperand(1).getReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(1).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(MBlaze::SW))
.addReg(SrcReg, getKillRegState(isKill) | getUndefRegState(isUndef))
.addImm(0).addFrameIndex(FI);
} else { // COPY -> LOAD
unsigned DstReg = MI->getOperand(0).getReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(MBlaze::LW))
.addReg(DstReg, RegState::Define | getDeadRegState(isDead) |
getUndefRegState(isUndef))
.addImm(0).addFrameIndex(FI);
}
}
break;
}
return NewMI;
}
//===----------------------------------------------------------------------===//
// Branch Analysis
//===----------------------------------------------------------------------===//

12
lib/Target/MBlaze/MBlazeInstrInfo.h
View File

@ -216,18 +216,6 @@ public:
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
MachineInstr* LoadMI) const {
return 0;
}
/// Insert nop instruction when hazard condition is found
virtual void insertNoop(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI) const;

74
lib/Target/Mips/MipsInstrInfo.cpp
View File

@ -261,80 +261,6 @@ loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
llvm_unreachable("Register class not handled!");
}
MachineInstr *MipsInstrInfo::
foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops, int FI) const
{
if (Ops.size() != 1) return NULL;
MachineInstr *NewMI = NULL;
switch (MI->getOpcode()) {
case Mips::ADDu:
if ((MI->getOperand(0).isReg()) &&
(MI->getOperand(1).isReg()) &&
(MI->getOperand(1).getReg() == Mips::ZERO) &&
(MI->getOperand(2).isReg())) {
if (Ops[0] == 0) { // COPY -> STORE
unsigned SrcReg = MI->getOperand(2).getReg();
bool isKill = MI->getOperand(2).isKill();
bool isUndef = MI->getOperand(2).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(Mips::SW))
.addReg(SrcReg, getKillRegState(isKill) | getUndefRegState(isUndef))
.addImm(0).addFrameIndex(FI);
} else { // COPY -> LOAD
unsigned DstReg = MI->getOperand(0).getReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(Mips::LW))
.addReg(DstReg, RegState::Define | getDeadRegState(isDead) |
getUndefRegState(isUndef))
.addImm(0).addFrameIndex(FI);
}
}
break;
case Mips::FMOV_S32:
case Mips::FMOV_D32:
if ((MI->getOperand(0).isReg()) &&
(MI->getOperand(1).isReg())) {
const TargetRegisterClass
*RC = RI.getRegClass(MI->getOperand(0).getReg());
unsigned StoreOpc, LoadOpc;
bool IsMips1 = TM.getSubtarget<MipsSubtarget>().isMips1();
if (RC == Mips::FGR32RegisterClass) {
LoadOpc = Mips::LWC1; StoreOpc = Mips::SWC1;
} else {
assert(RC == Mips::AFGR64RegisterClass);
// Mips1 doesn't have ldc/sdc instructions.
if (IsMips1) break;
LoadOpc = Mips::LDC1; StoreOpc = Mips::SDC1;
}
if (Ops[0] == 0) { // COPY -> STORE
unsigned SrcReg = MI->getOperand(1).getReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(2).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(StoreOpc))
.addReg(SrcReg, getKillRegState(isKill) | getUndefRegState(isUndef))
.addImm(0).addFrameIndex(FI) ;
} else { // COPY -> LOAD
unsigned DstReg = MI->getOperand(0).getReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(LoadOpc))
.addReg(DstReg, RegState::Define | getDeadRegState(isDead) |
getUndefRegState(isUndef))
.addImm(0).addFrameIndex(FI);
}
}
break;
}
return NewMI;
}
//===----------------------------------------------------------------------===//
// Branch Analysis
//===----------------------------------------------------------------------===//

12
lib/Target/Mips/MipsInstrInfo.h
View File

@ -222,18 +222,6 @@ public:
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
MachineInstr* LoadMI) const {
return 0;
}
virtual
bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const;

115
lib/Target/PowerPC/PPCInstrInfo.cpp
View File

@ -649,121 +649,6 @@ PPCInstrInfo::emitFrameIndexDebugValue(MachineFunction &MF,
return &*MIB;
}
/// foldMemoryOperand - PowerPC (like most RISC's) can only fold spills into
/// copy instructions, turning them into load/store instructions.
MachineInstr *PPCInstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const {
if (Ops.size() != 1) return NULL;
// Make sure this is a reg-reg copy. Note that we can't handle MCRF, because
// it takes more than one instruction to store it.
unsigned Opc = MI->getOpcode();
unsigned OpNum = Ops[0];
MachineInstr *NewMI = NULL;
if ((Opc == PPC::OR &&
MI->getOperand(1).getReg() == MI->getOperand(2).getReg())) {
if (OpNum == 0) { // move -> store
unsigned InReg = MI->getOperand(1).getReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(1).isUndef();
NewMI = addFrameReference(BuildMI(MF, MI->getDebugLoc(), get(PPC::STW))
.addReg(InReg,
getKillRegState(isKill) |
getUndefRegState(isUndef)),
FrameIndex);
} else { // move -> load
unsigned OutReg = MI->getOperand(0).getReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
NewMI = addFrameReference(BuildMI(MF, MI->getDebugLoc(), get(PPC::LWZ))
.addReg(OutReg,
RegState::Define |
getDeadRegState(isDead) |
getUndefRegState(isUndef)),
FrameIndex);
}
} else if ((Opc == PPC::OR8 &&
MI->getOperand(1).getReg() == MI->getOperand(2).getReg())) {
if (OpNum == 0) { // move -> store
unsigned InReg = MI->getOperand(1).getReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(1).isUndef();
NewMI = addFrameReference(BuildMI(MF, MI->getDebugLoc(), get(PPC::STD))
.addReg(InReg,
getKillRegState(isKill) |
getUndefRegState(isUndef)),
FrameIndex);
} else { // move -> load
unsigned OutReg = MI->getOperand(0).getReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
NewMI = addFrameReference(BuildMI(MF, MI->getDebugLoc(), get(PPC::LD))
.addReg(OutReg,
RegState::Define |
getDeadRegState(isDead) |
getUndefRegState(isUndef)),
FrameIndex);
}
} else if (Opc == PPC::FMR || Opc == PPC::FMRSD) {
// The register may be F4RC or F8RC, and that determines the memory op.
unsigned OrigReg = MI->getOperand(OpNum).getReg();
// We cannot tell the register class from a physreg alone.
if (TargetRegisterInfo::isPhysicalRegister(OrigReg))
return NULL;
const TargetRegisterClass *RC = MF.getRegInfo().getRegClass(OrigReg);
const bool is64 = RC == PPC::F8RCRegisterClass;
if (OpNum == 0) { // move -> store
unsigned InReg = MI->getOperand(1).getReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(1).isUndef();
NewMI = addFrameReference(BuildMI(MF, MI->getDebugLoc(),
get(is64 ? PPC::STFD : PPC::STFS))
.addReg(InReg,
getKillRegState(isKill) |
getUndefRegState(isUndef)),
FrameIndex);
} else { // move -> load
unsigned OutReg = MI->getOperand(0).getReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
NewMI = addFrameReference(BuildMI(MF, MI->getDebugLoc(),
get(is64 ? PPC::LFD : PPC::LFS))
.addReg(OutReg,
RegState::Define |
getDeadRegState(isDead) |
getUndefRegState(isUndef)),
FrameIndex);
}
}
return NewMI;
}
bool PPCInstrInfo::canFoldMemoryOperand(const MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops) const {
if (Ops.size() != 1) return false;
// Make sure this is a reg-reg copy. Note that we can't handle MCRF, because
// it takes more than one instruction to store it.
unsigned Opc = MI->getOpcode();
if ((Opc == PPC::OR &&
MI->getOperand(1).getReg() == MI->getOperand(2).getReg()))
return true;
else if ((Opc == PPC::OR8 &&
MI->getOperand(1).getReg() == MI->getOperand(2).getReg()))
return true;
else if (Opc == PPC::FMR || Opc == PPC::FMRSD)
return true;
return false;
}
bool PPCInstrInfo::
ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const {
assert(Cond.size() == 2 && "Invalid PPC branch opcode!");

17
lib/Target/PowerPC/PPCInstrInfo.h
View File

@ -134,23 +134,6 @@ public:
const MDNode *MDPtr,
DebugLoc DL) const;
/// foldMemoryOperand - PowerPC (like most RISC's) can only fold spills into
/// copy instructions, turning them into load/store instructions.
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
MachineInstr* LoadMI) const {
return 0;
}
virtual bool canFoldMemoryOperand(const MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops) const;
virtual
bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const;

55
lib/Target/Sparc/SparcInstrInfo.cpp
View File

@ -174,61 +174,6 @@ loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
llvm_unreachable("Can't load this register from stack slot");
}
MachineInstr *SparcInstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
int FI) const {
if (Ops.size() != 1) return NULL;
unsigned OpNum = Ops[0];
bool isFloat = false;
MachineInstr *NewMI = NULL;
switch (MI->getOpcode()) {
case SP::ORrr:
if (MI->getOperand(1).isReg() && MI->getOperand(1).getReg() == SP::G0&&
MI->getOperand(0).isReg() && MI->getOperand(2).isReg()) {
if (OpNum == 0) // COPY -> STORE
NewMI = BuildMI(MF, MI->getDebugLoc(), get(SP::STri))
.addFrameIndex(FI)
.addImm(0)
.addReg(MI->getOperand(2).getReg());
else // COPY -> LOAD
NewMI = BuildMI(MF, MI->getDebugLoc(), get(SP::LDri),
MI->getOperand(0).getReg())
.addFrameIndex(FI)
.addImm(0);
}
break;
case SP::FMOVS:
isFloat = true;
// FALLTHROUGH
case SP::FMOVD:
if (OpNum == 0) { // COPY -> STORE
unsigned SrcReg = MI->getOperand(1).getReg();
bool isKill = MI->getOperand(1).isKill();
bool isUndef = MI->getOperand(1).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(),
get(isFloat ? SP::STFri : SP::STDFri))
.addFrameIndex(FI)
.addImm(0)
.addReg(SrcReg, getKillRegState(isKill) | getUndefRegState(isUndef));
} else { // COPY -> LOAD
unsigned DstReg = MI->getOperand(0).getReg();
bool isDead = MI->getOperand(0).isDead();
bool isUndef = MI->getOperand(0).isUndef();
NewMI = BuildMI(MF, MI->getDebugLoc(),
get(isFloat ? SP::LDFri : SP::LDDFri))
.addReg(DstReg, RegState::Define |
getDeadRegState(isDead) | getUndefRegState(isUndef))
.addFrameIndex(FI)
.addImm(0);
}
break;
}
return NewMI;
}
unsigned SparcInstrInfo::getGlobalBaseReg(MachineFunction *MF) const
{
SparcMachineFunctionInfo *SparcFI = MF->getInfo<SparcMachineFunctionInfo>();

12
lib/Target/Sparc/SparcInstrInfo.h
View File

@ -88,18 +88,6 @@ public:
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
MachineInstr* LoadMI) const {
return 0;
}
unsigned getGlobalBaseReg(MachineFunction *MF) const;
};