src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.loop/src/org/graalvm/compiler/loop/MathUtil.java
--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.loop/src/org/graalvm/compiler/loop/MathUtil.java Thu Oct 31 14:23:06 2019 -0700
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.loop/src/org/graalvm/compiler/loop/MathUtil.java Thu Oct 31 16:54:16 2019 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -94,7 +94,9 @@
if (before.predecessor() instanceof FixedBinaryNode) {
FixedBinaryNode binaryPredecessor = (FixedBinaryNode) before.predecessor();
if (fixedDiv.dataFlowEquals(binaryPredecessor)) {
- fixedDiv.safeDelete();
+ if (fixedDiv.isAlive()) {
+ fixedDiv.safeDelete();
+ }
return binaryPredecessor;
}
}