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| author | Jim Grosbach <grosbach@apple.com> | 2009-09-29 20:11:10 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2009-09-29 20:11:10 +0000 |
| commit | a9a9c95f6789946d5df34185725fc28cebad8b16 (patch) | |
| tree | 49b5a2abd5c5bbf23c1d5a8d7c0ec8a2f239872e /lib/CodeGen/RegisterScavenging.cpp | |
| parent | 1d957e4d0d09eed90386688a503350cf2ccc2793 (diff) | |
Additional check for regno==0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83103 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegisterScavenging.cpp')
| -rw-r--r-- | lib/CodeGen/RegisterScavenging.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp index ada7b4665d..b99f88f94d 100644 --- a/lib/CodeGen/RegisterScavenging.cpp +++ b/lib/CodeGen/RegisterScavenging.cpp @@ -280,7 +280,7 @@ unsigned RegScavenger::scavengeRegister(const TargetRegisterClass *RC, // Exclude all the registers being used by the instruction. for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i) { MachineOperand &MO = I->getOperand(i); - if (MO.isReg() && !TRI->isVirtualRegister(MO.getReg())) + if (MO.isReg() && MO.getReg() != 0 && !TRI->isVirtualRegister(MO.getReg())) Candidates.reset(MO.getReg()); } |