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| author | Cameron Zwarich <zwarich@apple.com> | 2011-05-27 05:04:51 +0000 |
|---|---|---|
| committer | Cameron Zwarich <zwarich@apple.com> | 2011-05-27 05:04:51 +0000 |
| commit | 34ef49dc74e68f9364c1e14195bd19f9232927fc (patch) | |
| tree | bec102a7495c5168f0e0f1118630c30fd35ed3ee /llvm/lib | |
| parent | 43a421e3d5e5384cca1b5fe88b138e3d7c5255be (diff) | |
| download | bcm5719-llvm-34ef49dc74e68f9364c1e14195bd19f9232927fc.tar.gz bcm5719-llvm-34ef49dc74e68f9364c1e14195bd19f9232927fc.zip | |
Fix PR10029 - VerifyCoalescing failure on patterns_dfa.c of 445.gobmk.
llvm-svn: 132181
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/UnreachableBlockElim.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/UnreachableBlockElim.cpp b/llvm/lib/CodeGen/UnreachableBlockElim.cpp index 48d8ab1658d..52693f03e82 100644 --- a/llvm/lib/CodeGen/UnreachableBlockElim.cpp +++ b/llvm/lib/CodeGen/UnreachableBlockElim.cpp @@ -196,8 +196,11 @@ bool UnreachableMachineBlockElim::runOnMachineFunction(MachineFunction &F) { temp->eraseFromParent(); ModifiedPHI = true; - if (Input != Output) - F.getRegInfo().replaceRegWith(Output, Input); + if (Input != Output) { + MachineRegisterInfo &MRI = F.getRegInfo(); + MRI.constrainRegClass(Input, MRI.getRegClass(Output)); + MRI.replaceRegWith(Output, Input); + } continue; } |
