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-rw-r--r--llvm/lib/Transforms/Utils/LoopUnrollRuntime.cpp5
1 files changed, 2 insertions, 3 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopUnrollRuntime.cpp b/llvm/lib/Transforms/Utils/LoopUnrollRuntime.cpp
index 46570a11a4f..c8d47828eba 100644
--- a/llvm/lib/Transforms/Utils/LoopUnrollRuntime.cpp
+++ b/llvm/lib/Transforms/Utils/LoopUnrollRuntime.cpp
@@ -318,9 +318,8 @@ bool llvm::UnrollRuntimeLoopProlog(Loop *L, unsigned Count, LoopInfo *LI,
return false;
// This constraint lets us deal with an overflowing trip count easily; see the
- // comment on ModVal below. This check is equivalent to `Log2(Count) <
- // BEWidth`.
- if (BEWidth < 64 && static_cast<uint64_t>(Count) > (1ULL << BEWidth))
+ // comment on ModVal below.
+ if (Log2_32(Count) > BEWidth)
return false;
// If this loop is nested, then the loop unroller changes the code in
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