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fix a common crash.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45614 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-01-05 01:39:17 +00:00
parent 5a62d0a038
commit 9bb459b554
1 changed files with 4 additions and 0 deletions
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4
lib/CodeGen/MachineSink.cpp
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@ -180,6 +180,10 @@ bool MachineSinking::SinkInstruction(MachineInstr *MI) {
}
}
// If there are no outputs, it must have side-effects.
if (SuccToSinkTo == 0)
return false;
// FIXME: Check that the instr doesn't have side effects etc.
DEBUG(cerr << "Sink instr " << *MI);