hg: jdk8u/jdk8u-dev/jdk: 8210416: [linux] Poor StrictMath performance due to non-optimized compilation

[sgehwolf at redhat.com]

Changeset: 3f75ecf2feed
Author:    sgehwolf
Date:      2019-04-25 15:19 +0200
URL:       http://hg.openjdk.java.net/jdk8u/jdk8u-dev/jdk/rev/3f75ecf2feed

8210416: [linux] Poor StrictMath performance due to non-optimized compilation
Summary: Compile fdlibm with -O3 and relevant C flags on gcc arches.
Reviewed-by: mbaesken, andrew

! make/lib/CoreLibraries.gmk