diff options
| author | Roman Divacky <rdivacky@FreeBSD.org> | 2010-07-13 17:19:57 +0000 |
|---|---|---|
| committer | Roman Divacky <rdivacky@FreeBSD.org> | 2010-07-13 17:19:57 +0000 |
| commit | 66e41e3c6e8b8fbc48d5d3b4d2bd9ce0be4ecb75 (patch) | |
| tree | 9de1c5f67a98cd0e73c60838396486c984f63ac2 /lib/CodeGen/OptimizePHIs.cpp | |
| parent | abdf259d487163e72081a8cf4991b1617206b41e (diff) | |
Notes
Diffstat (limited to 'lib/CodeGen/OptimizePHIs.cpp')
| -rw-r--r-- | lib/CodeGen/OptimizePHIs.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/OptimizePHIs.cpp b/lib/CodeGen/OptimizePHIs.cpp index 2717d4d5cefc9..1613fe21e42dd 100644 --- a/lib/CodeGen/OptimizePHIs.cpp +++ b/lib/CodeGen/OptimizePHIs.cpp @@ -107,6 +107,11 @@ bool OptimizePHIs::IsSingleValuePHICycle(MachineInstr *MI, SrcSubIdx == 0 && DstSubIdx == 0 && TargetRegisterInfo::isVirtualRegister(MvSrcReg)) SrcMI = MRI->getVRegDef(MvSrcReg); + else if (SrcMI && SrcMI->isCopy() && + !SrcMI->getOperand(0).getSubReg() && + !SrcMI->getOperand(1).getSubReg() && + TargetRegisterInfo::isVirtualRegister(SrcMI->getOperand(1).getReg())) + SrcMI = MRI->getVRegDef(SrcMI->getOperand(1).getReg()); if (!SrcMI) return false; |