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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-08-09 22:08:26 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-08-09 22:08:26 +0000 |
| commit | 988069e2291f62dced081dd54da38b9683bdbdca (patch) | |
| tree | 67a740437e8165221a0143ed1d37fa1085971c28 /lib/CodeGen/TwoAddressInstructionPass.cpp | |
| parent | 69a0aa87f8d64895af082cb52c7ecee0f6021d20 (diff) | |
| download | llvm-988069e2291f62dced081dd54da38b9683bdbdca.tar.gz llvm-988069e2291f62dced081dd54da38b9683bdbdca.tar.bz2 llvm-988069e2291f62dced081dd54da38b9683bdbdca.tar.xz | |
Fix a future TwoAddressInstructionPass crash.
No test case, the crash only happens when the default use list order is
changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161627 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/TwoAddressInstructionPass.cpp')
| -rw-r--r-- | lib/CodeGen/TwoAddressInstructionPass.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp index d22274496a..9a219a6b00 100644 --- a/lib/CodeGen/TwoAddressInstructionPass.cpp +++ b/lib/CodeGen/TwoAddressInstructionPass.cpp @@ -235,7 +235,7 @@ bool TwoAddressInstructionPass::Sink3AddrInstruction(MachineBasicBlock *MBB, // appropriate location, we can try to sink the current instruction // past it. if (!KillMI || KillMI->getParent() != MBB || KillMI == MI || - KillMI->isTerminator()) + KillMI == OldPos || KillMI->isTerminator()) return false; // If any of the definitions are used by another instruction between the @@ -278,6 +278,7 @@ bool TwoAddressInstructionPass::Sink3AddrInstruction(MachineBasicBlock *MBB, } } } + assert(KillMO && "Didn't find kill"); // Update kill and LV information. KillMO->setIsKill(false); |