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diff graal/com.oracle.truffle.api/src/com/oracle/truffle/api/utilities/BranchProfile.java @ 16868:db090a8d3705

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clarify documentation about assumption and profile storage in final fields
author Michael Haupt <michael.haupt@oracle.com>
date Wed, 20 Aug 2014 15:16:11 +0200
parents d9d496d77d37
children 87ea195b66ff
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--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/utilities/BranchProfile.java	Tue Aug 19 19:25:44 2014 +0200
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/utilities/BranchProfile.java	Wed Aug 20 15:16:11 2014 +0200
@@ -32,6 +32,9 @@
  * invoked first the optimized code is invalidated and the branch where {@link #enter()} is invoked
  * is enabled for compilation. Otherwise if the {@link #enter()} method was never invoked the branch
  * will not get compiled.
+ *
+ * All {@code BranchProfile} instances must be held in {@code final} fields for compiler
+ * optimizations to take effect.
  */
 public final class BranchProfile {