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-rw-r--r--llvm/lib/Transforms/Scalar/LoopLoadElimination.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopLoadElimination.cpp b/llvm/lib/Transforms/Scalar/LoopLoadElimination.cpp
index 68bb28d34d8..2b3d5e0ce9b 100644
--- a/llvm/lib/Transforms/Scalar/LoopLoadElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopLoadElimination.cpp
@@ -534,6 +534,12 @@ public:
}
if (!Checks.empty() || !LAI.getPSE().getUnionPredicate().isAlwaysTrue()) {
+ if (LAI.hasConvergentOp()) {
+ LLVM_DEBUG(dbgs() << "Versioning is needed but not allowed with "
+ "convergent calls\n");
+ return false;
+ }
+
auto *HeaderBB = L->getHeader();
auto *F = HeaderBB->getParent();
bool OptForSize = F->hasOptSize() ||
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