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| author | Chris Lattner <sabre@nondot.org> | 2008-01-05 01:39:17 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-01-05 01:39:17 +0000 |
| commit | 7ebe08504ba075c4a83df7ecec86d5e032b20781 (patch) | |
| tree | 54fec129fe5809a42c76dfa1cfb759c94ea318c9 /lib | |
| parent | 1bcd6ddb70e165d81e7e280c1afc333b95193f11 (diff) | |
| download | external_llvm-7ebe08504ba075c4a83df7ecec86d5e032b20781.zip external_llvm-7ebe08504ba075c4a83df7ecec86d5e032b20781.tar.gz external_llvm-7ebe08504ba075c4a83df7ecec86d5e032b20781.tar.bz2 | |
fix a common crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45614 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/MachineSink.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineSink.cpp b/lib/CodeGen/MachineSink.cpp index 0665e87..dff60f6 100644 --- a/lib/CodeGen/MachineSink.cpp +++ b/lib/CodeGen/MachineSink.cpp @@ -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); |