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Insertion methods now return void instead of #instrs inserted. Also, use 

more powerful forms of BuildMI to concisify the code

llvm-svn: 15782
This commit is contained in:
Chris Lattner 2004-08-15 22:15:56 +00:00
parent 772f0d4106
commit 48a3b942ae
2 changed files with 25 additions and 31 deletions
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38
llvm/lib/Target/PowerPC/PowerPCRegisterInfo.cpp
View File

@ -68,7 +68,7 @@ static unsigned getIdx(const TargetRegisterClass *RC) {
abort();
}
int
void
PowerPCRegisterInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned SrcReg, int FrameIdx) const {
@ -79,17 +79,15 @@ PowerPCRegisterInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
unsigned OC = Opcode[getIdx(RC)];
if (SrcReg == PPC::LR) {
MBB.insert(MI, BuildMI(PPC::MFLR, 0, PPC::R0));
MBB.insert(MI, addFrameReference(BuildMI(OC,3).addReg(PPC::R0),FrameIdx));
return 2;
BuildMI(MBB, MI, PPC::MFLR, 0, PPC::R0);
addFrameReference(BuildMI(MBB, MI, OC, 3).addReg(PPC::R0),FrameIdx);
} else {
MBB.insert(MI, BuildMI(PPC::IMPLICIT_DEF, 0, PPC::R0));
MBB.insert(MI, addFrameReference(BuildMI(OC, 3).addReg(SrcReg),FrameIdx));
return 2;
BuildMI(MBB, MI, PPC::IMPLICIT_DEF, 0, PPC::R0);
addFrameReference(BuildMI(MBB, MI, OC, 3).addReg(SrcReg),FrameIdx);
}
}
int
void
PowerPCRegisterInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned DestReg, int FrameIdx) const{
@ -99,32 +97,28 @@ PowerPCRegisterInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
const TargetRegisterClass *RC = getRegClass(DestReg);
unsigned OC = Opcode[getIdx(RC)];
if (DestReg == PPC::LR) {
MBB.insert(MI, addFrameReference(BuildMI(OC, 2, PPC::R0), FrameIdx));
MBB.insert(MI, BuildMI(PPC::MTLR, 1).addReg(PPC::R0));
return 2;
addFrameReference(BuildMI(MBB, MI, OC, 2, PPC::R0), FrameIdx);
BuildMI(MBB, MI, PPC::MTLR, 1).addReg(PPC::R0);
} else {
MBB.insert(MI, BuildMI(PPC::IMPLICIT_DEF, 0, PPC::R0));
MBB.insert(MI, addFrameReference(BuildMI(OC, 2, DestReg), FrameIdx));
return 2;
BuildMI(MBB, MI, PPC::IMPLICIT_DEF, 0, PPC::R0);
addFrameReference(BuildMI(MBB, MI, OC, 2, DestReg), FrameIdx);
}
}
int PowerPCRegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const {
void PowerPCRegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const {
MachineInstr *I;
if (RC == PowerPC::GPRCRegisterClass) {
I = BuildMI(PPC::OR, 2, DestReg).addReg(SrcReg).addReg(SrcReg);
BuildMI(MBB, MI, PPC::OR, 2, DestReg).addReg(SrcReg).addReg(SrcReg);
} else if (RC == PowerPC::FPRCRegisterClass) {
I = BuildMI(PPC::FMR, 1, DestReg).addReg(SrcReg);
BuildMI(MBB, MI, PPC::FMR, 1, DestReg).addReg(SrcReg);
} else {
std::cerr << "Attempt to copy register that is not GPR or FPR";
abort();
}
MBB.insert(MI, I);
return 1;
}
//===----------------------------------------------------------------------===//

18
llvm/lib/Target/PowerPC/PowerPCRegisterInfo.h
View File

@ -30,17 +30,17 @@ public:
const TargetRegisterClass* getRegClassForType(const Type* Ty) const;
/// Code Generation virtual methods...
int storeRegToStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI,
unsigned SrcReg, int FrameIndex) const;
int loadRegFromStackSlot(MachineBasicBlock &MBB,
void storeRegToStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI,
unsigned DestReg, int FrameIndex) const;
unsigned SrcReg, int FrameIndex) const;
void loadRegFromStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI,
unsigned DestReg, int FrameIndex) const;
int copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const;
void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,