8272720: Fix the implementation of loop unrolling heuristic with Loop…

…PercentProfileLimit Backport-of: 1ea437a4b87381b558cf8157ac52fc03e37ac507
openjdk · Sep 15, 2022 · 89bdd28 · 89bdd28 · openjdk-notifier · Sep 15, 2022
1 parent 19ce717
commit 89bdd28
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/hotspot/share/opto/loopTransform.cpp b/src/hotspot/share/opto/loopTransform.cpp
@@ -826,7 +826,7 @@ bool IdealLoopTree::policy_unroll(PhaseIdealLoop *phase) {
   //   Progress defined as current size less than 20% larger than previous size.
   if (UseSuperWord && cl->node_count_before_unroll() > 0 &&
       future_unroll_cnt > LoopUnrollMin &&
-      (future_unroll_cnt - 1) * (100 / LoopPercentProfileLimit) > cl->profile_trip_cnt() &&
+      (future_unroll_cnt - 1) * (100.0 / LoopPercentProfileLimit) > cl->profile_trip_cnt() &&
       1.2 * cl->node_count_before_unroll() < (double)_body.size()) {
     return false;
   }