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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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10
lib/Target/Mips/MipsRegisterInfo.cpp
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@@ -109,9 +109,15 @@ loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
void MipsRegisterInfo::
copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const
const TargetRegisterClass *DestRC,
const TargetRegisterClass *SrcRC) const
{
if (RC == Mips::CPURegsRegisterClass)
if (DestRC != SrcRC) {
cerr << "Not yet supported!";
abort();
}
if (DestRC == Mips::CPURegsRegisterClass)
BuildMI(MBB, I, TII.get(Mips::ADDu), DestReg).addReg(Mips::ZERO)
.addReg(SrcReg);
else