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One more extract_subreg coalescing bug fix.
llvm-svn: 43065
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@ -236,7 +236,7 @@ bool SimpleRegisterCoalescing::JoinCopy(MachineInstr *CopyMI,
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// If this is a extract_subreg where dst is a physical register, e.g.
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// cl = EXTRACT_SUBREG reg1024, 1
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// then create and update the actual physical register allocated to RHS.
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const TargetRegisterClass *RC = mf_->getSSARegMap()->getRegClass(SrcReg);
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const TargetRegisterClass *RC=mf_->getSSARegMap()->getRegClass(repSrcReg);
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for (const unsigned *SRs = mri_->getSuperRegisters(repDstReg);
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unsigned SR = *SRs; ++SRs) {
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if (repDstReg == mri_->getSubReg(SR, SubIdx) &&
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