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| author | Evan Cheng <evan.cheng@apple.com> | 2010-09-17 21:56:26 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-09-17 21:56:26 +0000 |
| commit | f437f733484169cf67f7c3e798908bbf27175580 (patch) | |
| tree | 76db2e7d3c9ffcf5ac555bd9e7336f8c07a26d8c /lib/CodeGen/MachineCSE.cpp | |
| parent | 38cb1cdfb7308e82ed00985427f78d11d817d88a (diff) | |
| download | llvm-f437f733484169cf67f7c3e798908bbf27175580.tar.gz llvm-f437f733484169cf67f7c3e798908bbf27175580.tar.bz2 llvm-f437f733484169cf67f7c3e798908bbf27175580.tar.xz | |
Fix a potential bug that can cause miscomparison with and without debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114220 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineCSE.cpp')
| -rw-r--r-- | lib/CodeGen/MachineCSE.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/MachineCSE.cpp b/lib/CodeGen/MachineCSE.cpp index 92e2299ec6..39a50d2078 100644 --- a/lib/CodeGen/MachineCSE.cpp +++ b/lib/CodeGen/MachineCSE.cpp @@ -101,7 +101,7 @@ bool MachineCSE::PerformTrivialCoalescing(MachineInstr *MI, unsigned Reg = MO.getReg(); if (!Reg || TargetRegisterInfo::isPhysicalRegister(Reg)) continue; - if (!MRI->hasOneUse(Reg)) + if (!MRI->hasOneNonDBGUse(Reg)) // Only coalesce single use copies. This ensure the copy will be // deleted. continue; |