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diff graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/InstanceOfSnippets.java @ 7554:9472211c812b

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named constants for snippet probabilities (likely, frequent, fast_path, deopt), see CR-7
author Lukas Stadler <lukas.stadler@jku.at>
date Thu, 24 Jan 2013 18:20:46 +0100
parents a0298e142ea8
children 47467b2c3fc5
line wrap: on
line diff
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/InstanceOfSnippets.java	Thu Jan 24 17:06:00 2013 +0100
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/InstanceOfSnippets.java	Thu Jan 24 18:20:46 2013 +0100
@@ -68,13 +68,13 @@
                     @Parameter("falseValue") Object falseValue,
                     @ConstantParameter("checkNull") boolean checkNull) {
         if (checkNull && object == null) {
-            probability(0.01);
+            probability(NOT_FREQUENT_PROBABILITY);
             isNull.inc();
             return falseValue;
         }
         Word objectHub = loadHub(object);
         if (objectHub != exactHub) {
-            probability(0.75);
+            probability(LIKELY_PROBABILITY);
             exactMiss.inc();
             return falseValue;
         }
@@ -94,13 +94,13 @@
                     @ConstantParameter("checkNull") boolean checkNull,
                     @ConstantParameter("superCheckOffset") int superCheckOffset) {
         if (checkNull && object == null) {
-            probability(0.01);
+            probability(NOT_FREQUENT_PROBABILITY);
             isNull.inc();
             return falseValue;
         }
         Word objectHub = loadHub(object);
         if (objectHub.readWord(superCheckOffset) != hub) {
-            probability(0.45);
+            probability(NOT_LIKELY_PROBABILITY);
             displayMiss.inc();
             return falseValue;
         }
@@ -120,7 +120,7 @@
                     @VarargsParameter("hints") Word[] hints,
                     @ConstantParameter("checkNull") boolean checkNull) {
         if (checkNull && object == null) {
-            probability(0.01);
+            probability(NOT_FREQUENT_PROBABILITY);
             isNull.inc();
             return falseValue;
         }
@@ -130,7 +130,7 @@
         for (int i = 0; i < hints.length; i++) {
             Word hintHub = hints[i];
             if (hintHub == objectHub) {
-                probability(0.01);
+                probability(NOT_FREQUENT_PROBABILITY);
                 hintsHit.inc();
                 return trueValue;
             }
@@ -152,7 +152,7 @@
                     @Parameter("falseValue") Object falseValue,
                     @ConstantParameter("checkNull") boolean checkNull) {
         if (checkNull && object == null) {
-            probability(0.01);
+            probability(NOT_FREQUENT_PROBABILITY);
             isNull.inc();
             return falseValue;
         }