> Optimizes the divideUnsigned() and remainderUnsigned() methods in > java.lang.Integer and java.lang.Long classes using x86 intrinsics. This > change shows 3x improvement for Integer methods and upto 25% improvement for > Long. This change also implements the DivMod optimization which fuses > division and modulus operations if needed. The DivMod optimization shows 3x > improvement for Integer and ~65% improvement for Long.
Vamsi Parasa has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 13 commits: - Merge branch 'openjdk:master' into udivmod - add error msg for jtreg test - update jtreg test to run on x86_64 - add bmi1 support check and jtreg tests - Merge branch 'master' of https://git.openjdk.java.net/jdk into udivmod - fix 32bit build issues - Fix line at end of file - Move intrinsic code to macro assembly routines; remove unused transformations for div and mod nodes - fix trailing white space errors - fix whitespaces - ... and 3 more: https://git.openjdk.java.net/jdk/compare/741be461...acba7c19 ------------- Changes: https://git.openjdk.java.net/jdk/pull/7572/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7572&range=08 Stats: 1007 lines in 20 files changed: 1005 ins; 1 del; 1 mod Patch: https://git.openjdk.java.net/jdk/pull/7572.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/7572/head:pull/7572 PR: https://git.openjdk.java.net/jdk/pull/7572
