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Diffstat (limited to 'lib/Transforms/Scalar/LICM.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LICM.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/LICM.cpp b/lib/Transforms/Scalar/LICM.cpp index 8795cd8..582948e 100644 --- a/lib/Transforms/Scalar/LICM.cpp +++ b/lib/Transforms/Scalar/LICM.cpp @@ -618,6 +618,11 @@ bool LICM::isGuaranteedToExecute(Instruction &Inst) { if (!DT->dominates(Inst.getParent(), ExitBlocks[i])) return false; + // As a degenerate case, if the loop is statically infinite then we haven't + // proven anything since there are no exit blocks. + if (ExitBlocks.empty()) + return false; + return true; } |