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src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.loop/src/org/graalvm/compiler/loop/DerivedScaledInductionVariable.java
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rev 52509 : [mq]: graal2
@@ -61,17 +61,21 @@
return value;
}
@Override
public Direction direction() {
+ Direction baseDirection = base.direction();
+ if (baseDirection == null) {
+ return null;
+ }
Stamp stamp = scale.stamp(NodeView.DEFAULT);
if (stamp instanceof IntegerStamp) {
IntegerStamp integerStamp = (IntegerStamp) stamp;
if (integerStamp.isStrictlyPositive()) {
- return base.direction();
+ return baseDirection;
} else if (integerStamp.isStrictlyNegative()) {
- return base.direction().opposite();
+ return baseDirection.opposite();
}
}
return null;
}
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