diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2011-06-12 15:42:51 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2011-06-12 15:42:51 +0000 |
| commit | 56fe8f14099930935e3870e3e823c322a85c1c89 (patch) | |
| tree | b3032e51d630e8070e9e08d6641648f195316a80 /lib/CodeGen/UnreachableBlockElim.cpp | |
| parent | 6b943ff3a3f8617113ecbf611cf0f8957e4e19d2 (diff) | |
Diffstat (limited to 'lib/CodeGen/UnreachableBlockElim.cpp')
| -rw-r--r-- | lib/CodeGen/UnreachableBlockElim.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/CodeGen/UnreachableBlockElim.cpp b/lib/CodeGen/UnreachableBlockElim.cpp index 48d8ab1658da5..52693f03e8282 100644 --- a/lib/CodeGen/UnreachableBlockElim.cpp +++ b/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; } |