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Diffstat (limited to 'lib/Transforms/Vectorize/LoopVectorize.cpp')
| -rw-r--r-- | lib/Transforms/Vectorize/LoopVectorize.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Transforms/Vectorize/LoopVectorize.cpp b/lib/Transforms/Vectorize/LoopVectorize.cpp index 4f6f51c9bb..bc420bd6a9 100644 --- a/lib/Transforms/Vectorize/LoopVectorize.cpp +++ b/lib/Transforms/Vectorize/LoopVectorize.cpp @@ -2308,7 +2308,10 @@ bool LoopVectorizationLegality::canVectorizeWithIfConvert() { } bool LoopVectorizationLegality::canVectorize() { - assert(TheLoop->getLoopPreheader() && "No preheader!!"); + // We must have a loop in canonical form. Loops with indirectbr in them cannot + // be canonicalized. + if (!TheLoop->getLoopPreheader()) + return false; // We can only vectorize innermost loops. if (TheLoop->getSubLoopsVector().size()) |