diff options
| -rw-r--r-- | llvm/include/llvm/Analysis/ScalarEvolutionExpander.h | 7 | ||||
| -rw-r--r-- | llvm/lib/Transforms/Scalar/IndVarSimplify.cpp | 4 |
2 files changed, 11 insertions, 0 deletions
diff --git a/llvm/include/llvm/Analysis/ScalarEvolutionExpander.h b/llvm/include/llvm/Analysis/ScalarEvolutionExpander.h index 828709404b1..dc9b73bd566 100644 --- a/llvm/include/llvm/Analysis/ScalarEvolutionExpander.h +++ b/llvm/include/llvm/Analysis/ScalarEvolutionExpander.h @@ -104,6 +104,13 @@ namespace llvm { /// is useful for late optimization passes. void disableCanonicalMode() { CanonicalMode = false; } + /// clearInsertPoint - Clear the current insertion point. This is useful + /// if the instruction that had been serving as the insertion point may + /// have been deleted. + void clearInsertPoint() { + Builder.ClearInsertionPoint(); + } + private: LLVMContext &getContext() const { return SE.getContext(); } diff --git a/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp b/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp index de93e9f621f..eb04d9401fb 100644 --- a/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp +++ b/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp @@ -307,6 +307,10 @@ void IndVarSimplify::RewriteLoopExitValues(Loop *L, } } } + + // The insertion point instruction may have been deleted; clear it out + // so that the rewriter doesn't trip over it later. + Rewriter.clearInsertPoint(); } void IndVarSimplify::RewriteNonIntegerIVs(Loop *L) { |
