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changeset 653:c664a0794f85

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6805748: Assertion "don't reset to 0 -- could be mistaken for never-executed" in CompilationPolicy Summary: Resetting the invocation counter for a method invocation event was setting count to zero for CompileThreshold=1, making it look like a never executed method. Reviewed-by: phh, kamg, acorn, never
author coleenp
date Fri, 20 Mar 2009 22:08:48 -0400
parents e55bcaf3a6a1
children 60bfce711da4
files src/share/vm/interpreter/invocationCounter.cpp
diffstat 1 files changed, 2 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/vm/interpreter/invocationCounter.cpp	Fri Mar 20 11:23:24 2009 -0400
+++ b/src/share/vm/interpreter/invocationCounter.cpp	Fri Mar 20 22:08:48 2009 -0400
@@ -47,6 +47,8 @@
   // executed many more times before re-entering the VM.
   int old_count = count();
   int new_count = MIN2(old_count, (int) (CompileThreshold / 2));
+  // prevent from going to zero, to distinguish from never-executed methods
+  if (new_count == 0)  new_count = 1;
   if (old_count != new_count)  set(state(), new_count);
 }