git: openjdk/jdk: 8285973: x86_64: Improve fp comparison and cmove for eq/ne

[Sandhya Viswanathan]

Changeset: c1db70d8
Author:    Quan Anh Mai <anhmdq99 at gmail.com>
Committer: Sandhya Viswanathan <sviswanathan at openjdk.org>
Date:      2022-05-24 00:15:54 +0000
URL:       https://git.openjdk.java.net/jdk/commit/c1db70d827f7ac81aa6c6646e2431f672c71c8dc

8285973: x86_64: Improve fp comparison and cmove for eq/ne

Reviewed-by: kvn, sviswanathan

! src/hotspot/cpu/x86/x86_64.ad
+ test/hotspot/jtreg/compiler/c2/irTests/TestFPComparison.java
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java
+ test/micro/org/openjdk/bench/java/lang/FPComparison.java