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-rw-r--r--llvm/lib/Target/Hexagon/HexagonTargetTransformInfo.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Target/Hexagon/HexagonTargetTransformInfo.cpp b/llvm/lib/Target/Hexagon/HexagonTargetTransformInfo.cpp
index 786f8eb4d8f..d5401a277b6 100644
--- a/llvm/lib/Target/Hexagon/HexagonTargetTransformInfo.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonTargetTransformInfo.cpp
@@ -21,6 +21,7 @@
#include "llvm/IR/User.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Transforms/Utils/UnrollLoop.h"
using namespace llvm;
@@ -45,7 +46,7 @@ void HexagonTTIImpl::getUnrollingPreferences(Loop *L, ScalarEvolution &SE,
TTI::UnrollingPreferences &UP) {
UP.Runtime = UP.Partial = true;
// Only try to peel innermost loops with small runtime trip counts.
- if (L && L->empty() &&
+ if (L && L->empty() && canPeel(L) &&
SE.getSmallConstantTripCount(L) == 0 &&
SE.getSmallConstantMaxTripCount(L) > 0 &&
SE.getSmallConstantMaxTripCount(L) <= 5) {
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