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8180720: method InferenceGraph.initNodes() can potentially add a trivial dependency of a node to itself

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Reviewed-by: mcimadamore
This commit is contained in:
Vicente Romero 2017-05-22 09:44:14 -07:00
parent 095e01f970
commit b8f2a6edad
1 changed files with 7 additions and 4 deletions
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11
langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Infer.java
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@ -1889,10 +1889,13 @@ public class Infer {
Type i = n_i.data.first();
for (Node n_j : nodes) {
Type j = n_j.data.first();
UndetVar uv_i = (UndetVar)inferenceContext.asUndetVar(i);
if (Type.containsAny(uv_i.getBounds(InferenceBound.values()), List.of(j))) {
//update i's bound dependencies
n_i.addDependency(n_j);
// don't compare a variable to itself
if (i != j) {
UndetVar uv_i = (UndetVar)inferenceContext.asUndetVar(i);
if (Type.containsAny(uv_i.getBounds(InferenceBound.values()), List.of(j))) {
//update i's bound dependencies
n_i.addDependency(n_j);
}
}
}
}