IRScope.buildCFG(): Return CFG if it has already been built

jruby · Feb 18, 2015 · f3c4b71 · f3c4b71
1 parent b4787ab
commit f3c4b71
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/core/src/main/java/org/jruby/ir/IRScope.java b/core/src/main/java/org/jruby/ir/IRScope.java
@@ -441,6 +441,10 @@ public boolean canReceiveNonlocalReturns() {
     }
 
     public CFG buildCFG() {
+        if (getCFG() != null) {
+            return getCFG();
+        }
+
         CFG newCFG = new CFG(this);
         newCFG.build(getInstrs());
         // Clear out instruction list after CFG has been built.