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Allow copyRegToReg to emit cross register classes copies.

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Tested with "make check"!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42346 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2007-09-26 06:25:56 +00:00
parent 61001b8bd4
commit 9efce638d3
21 changed files with 115 additions and 61 deletions
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20
lib/Target/PowerPC/PPCRegisterInfo.cpp
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@@ -226,18 +226,24 @@ PPCRegisterInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
void PPCRegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const {
if (RC == PPC::GPRCRegisterClass) {
const TargetRegisterClass *DestRC,
const TargetRegisterClass *SrcRC) const {
if (DestRC != SrcRC) {
cerr << "Not yet supported!";
abort();
}
if (DestRC == PPC::GPRCRegisterClass) {
BuildMI(MBB, MI, TII.get(PPC::OR), DestReg).addReg(SrcReg).addReg(SrcReg);
} else if (RC == PPC::G8RCRegisterClass) {
} else if (DestRC == PPC::G8RCRegisterClass) {
BuildMI(MBB, MI, TII.get(PPC::OR8), DestReg).addReg(SrcReg).addReg(SrcReg);
} else if (RC == PPC::F4RCRegisterClass) {
} else if (DestRC == PPC::F4RCRegisterClass) {
BuildMI(MBB, MI, TII.get(PPC::FMRS), DestReg).addReg(SrcReg);
} else if (RC == PPC::F8RCRegisterClass) {
} else if (DestRC == PPC::F8RCRegisterClass) {
BuildMI(MBB, MI, TII.get(PPC::FMRD), DestReg).addReg(SrcReg);
} else if (RC == PPC::CRRCRegisterClass) {
} else if (DestRC == PPC::CRRCRegisterClass) {
BuildMI(MBB, MI, TII.get(PPC::MCRF), DestReg).addReg(SrcReg);
} else if (RC == PPC::VRRCRegisterClass) {
} else if (DestRC == PPC::VRRCRegisterClass) {
BuildMI(MBB, MI, TII.get(PPC::VOR), DestReg).addReg(SrcReg).addReg(SrcReg);
} else {
cerr << "Attempt to copy register that is not GPR or FPR";