diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Transforms/Scalar/LoopSink.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/LoopSink.cpp b/lib/Transforms/Scalar/LoopSink.cpp index 760177c9c5e..7d62349d471 100644 --- a/lib/Transforms/Scalar/LoopSink.cpp +++ b/lib/Transforms/Scalar/LoopSink.cpp @@ -152,6 +152,14 @@ findBBsToSinkInto(const Loop &L, const SmallPtrSetImpl<BasicBlock *> &UseBBs, } } + // Can't sink into blocks that have no valid insertion point. + for (BasicBlock *BB : BBsToSinkInto) { + if (BB->getFirstInsertionPt() == BB->end()) { + BBsToSinkInto.clear(); + break; + } + } + // If the total frequency of BBsToSinkInto is larger than preheader frequency, // do not sink. if (adjustedSumFreq(BBsToSinkInto, BFI) > |