JDK 9 RFR of JDK-8029561: Optimization in Integer to string conversion
brian.burkhalter at oracle.com
Thu Jan 2 19:44:53 UTC 2014
Following up from this thread of last week
with respect to https://bugs.openjdk.java.net/browse/JDK-8029561.
The change being suggested in this review request is merely to remove the FIXME comment
--- a/src/share/classes/java/lang/Integer.java Mon Dec 30 16:34:06 2013 +0400
+++ b/src/share/classes/java/lang/Integer.java Thu Jan 02 11:21:00 2014 -0800
@@ -376,9 +376,6 @@
// JIT case the dispatch overhead doesn't exist and the
// "trick" is considerably faster than the classic code.
- // TODO-FIXME: convert (x * 52429) into the equiv shift-add
- // sequence.
// RE: Division by Invariant Integers using Multiplication
// T Gralund, P Montgomery
// ACM PLDI 1994
since the code change proposed in the issue report did not show any performance improvement.
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