diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineCopyPropagation.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineCopyPropagation.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MachineCopyPropagation.cpp b/llvm/lib/CodeGen/MachineCopyPropagation.cpp index 2d9ada5..e3fbd88 100644 --- a/llvm/lib/CodeGen/MachineCopyPropagation.cpp +++ b/llvm/lib/CodeGen/MachineCopyPropagation.cpp @@ -576,6 +576,7 @@ void MachineCopyPropagation::forwardUses(MachineInstr &MI) { MOUse.setReg(CopySrcReg); if (!CopySrc.isRenamable()) MOUse.setIsRenamable(false); + MOUse.setIsUndef(CopySrc.isUndef()); LLVM_DEBUG(dbgs() << "MCP: After replacement: " << MI << "\n"); |