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One more extract_subreg coalescing bug fix.

llvm-svn: 43065
This commit is contained in:
Evan Cheng 2007-10-17 05:29:37 +00:00
parent 7e785103df
commit 18a3c3dd37

View File

@ -236,7 +236,7 @@ bool SimpleRegisterCoalescing::JoinCopy(MachineInstr *CopyMI,
// If this is a extract_subreg where dst is a physical register, e.g.
// cl = EXTRACT_SUBREG reg1024, 1
// then create and update the actual physical register allocated to RHS.
const TargetRegisterClass *RC = mf_->getSSARegMap()->getRegClass(SrcReg);
const TargetRegisterClass *RC=mf_->getSSARegMap()->getRegClass(repSrcReg);
for (const unsigned *SRs = mri_->getSuperRegisters(repDstReg);
unsigned SR = *SRs; ++SRs) {
if (repDstReg == mri_->getSubReg(SR, SubIdx) &&