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-rw-r--r--lib/Target/CellSPU/SPUInstrInfo.cpp131
1 files changed, 12 insertions, 119 deletions
diff --git a/lib/Target/CellSPU/SPUInstrInfo.cpp b/lib/Target/CellSPU/SPUInstrInfo.cpp
index 4c53c98..69aa088 100644
--- a/lib/Target/CellSPU/SPUInstrInfo.cpp
+++ b/lib/Target/CellSPU/SPUInstrInfo.cpp
@@ -164,11 +164,9 @@ SPUInstrInfo::isMoveInstr(const MachineInstr& MI,
MI.getOperand(0).isReg() &&
MI.getOperand(1).isReg() &&
"invalid SPU OR<type>_<vec> or LR instruction!");
- if (MI.getOperand(0).getReg() == MI.getOperand(1).getReg()) {
sourceReg = MI.getOperand(1).getReg();
destReg = MI.getOperand(0).getReg();
return true;
- }
break;
}
case SPU::ORv16i8:
@@ -251,40 +249,18 @@ SPUInstrInfo::isStoreToStackSlot(const MachineInstr *MI,
return 0;
}
-bool SPUInstrInfo::copyRegToReg(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MI,
- unsigned DestReg, unsigned SrcReg,
- const TargetRegisterClass *DestRC,
- const TargetRegisterClass *SrcRC,
- DebugLoc DL) const
+void SPUInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I, DebugLoc DL,
+ unsigned DestReg, unsigned SrcReg,
+ bool KillSrc) const
{
// We support cross register class moves for our aliases, such as R3 in any
// reg class to any other reg class containing R3. This is required because
// we instruction select bitconvert i64 -> f64 as a noop for example, so our
// types have no specific meaning.
- if (DestRC == SPU::R8CRegisterClass) {
- BuildMI(MBB, MI, DL, get(SPU::LRr8), DestReg).addReg(SrcReg);
- } else if (DestRC == SPU::R16CRegisterClass) {
- BuildMI(MBB, MI, DL, get(SPU::LRr16), DestReg).addReg(SrcReg);
- } else if (DestRC == SPU::R32CRegisterClass) {
- BuildMI(MBB, MI, DL, get(SPU::LRr32), DestReg).addReg(SrcReg);
- } else if (DestRC == SPU::R32FPRegisterClass) {
- BuildMI(MBB, MI, DL, get(SPU::LRf32), DestReg).addReg(SrcReg);
- } else if (DestRC == SPU::R64CRegisterClass) {
- BuildMI(MBB, MI, DL, get(SPU::LRr64), DestReg).addReg(SrcReg);
- } else if (DestRC == SPU::R64FPRegisterClass) {
- BuildMI(MBB, MI, DL, get(SPU::LRf64), DestReg).addReg(SrcReg);
- } else if (DestRC == SPU::GPRCRegisterClass) {
- BuildMI(MBB, MI, DL, get(SPU::LRr128), DestReg).addReg(SrcReg);
- } else if (DestRC == SPU::VECREGRegisterClass) {
- BuildMI(MBB, MI, DL, get(SPU::LRv16i8), DestReg).addReg(SrcReg);
- } else {
- // Attempt to copy unknown/unsupported register class!
- return false;
- }
-
- return true;
+ BuildMI(MBB, I, DL, get(SPU::LRr128), DestReg)
+ .addReg(SrcReg, getKillRegState(KillSrc));
}
void
@@ -356,88 +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
@@ -554,9 +448,8 @@ SPUInstrInfo::RemoveBranch(MachineBasicBlock &MBB) const {
unsigned
SPUInstrInfo::InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
MachineBasicBlock *FBB,
- const SmallVectorImpl<MachineOperand> &Cond) const {
- // FIXME this should probably have a DebugLoc argument
- DebugLoc dl;
+ const SmallVectorImpl<MachineOperand> &Cond,
+ DebugLoc DL) const {
// Shouldn't be a fall through.
assert(TBB && "InsertBranch must not be told to insert a fallthrough");
assert((Cond.size() == 2 || Cond.size() == 0) &&
@@ -566,14 +459,14 @@ SPUInstrInfo::InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
if (FBB == 0) {
if (Cond.empty()) {
// Unconditional branch
- MachineInstrBuilder MIB = BuildMI(&MBB, dl, get(SPU::BR));
+ MachineInstrBuilder MIB = BuildMI(&MBB, DL, get(SPU::BR));
MIB.addMBB(TBB);
DEBUG(errs() << "Inserted one-way uncond branch: ");
DEBUG((*MIB).dump());
} else {
// Conditional branch
- MachineInstrBuilder MIB = BuildMI(&MBB, dl, get(Cond[0].getImm()));
+ MachineInstrBuilder MIB = BuildMI(&MBB, DL, get(Cond[0].getImm()));
MIB.addReg(Cond[1].getReg()).addMBB(TBB);
DEBUG(errs() << "Inserted one-way cond branch: ");
@@ -581,8 +474,8 @@ SPUInstrInfo::InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
}
return 1;
} else {
- MachineInstrBuilder MIB = BuildMI(&MBB, dl, get(Cond[0].getImm()));
- MachineInstrBuilder MIB2 = BuildMI(&MBB, dl, get(SPU::BR));
+ MachineInstrBuilder MIB = BuildMI(&MBB, DL, get(Cond[0].getImm()));
+ MachineInstrBuilder MIB2 = BuildMI(&MBB, DL, get(SPU::BR));
// Two-way Conditional Branch.
MIB.addReg(Cond[1].getReg()).addMBB(TBB);
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