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diff graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/NegateNode.java @ 9448:7b88c5e5cbd4

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Add more canonicalizations for Compare and Negate nodes
author Gilles Duboscq <duboscq@ssw.jku.at>
date Tue, 30 Apr 2013 20:07:07 +0200
parents 5e3d1a68664e
children 1e07d9303420
line wrap: on
line diff
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/NegateNode.java	Tue Apr 30 20:05:21 2013 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/NegateNode.java	Tue Apr 30 20:07:07 2013 +0200
@@ -69,6 +69,10 @@
         if (x() instanceof NegateNode) {
             return ((NegateNode) x()).x();
         }
+        if (x() instanceof IntegerSubNode) {
+            IntegerSubNode sub = (IntegerSubNode) x;
+            return IntegerArithmeticNode.sub(sub.y(), sub.x());
+        }
         return this;
     }