hg: valhalla/valhalla: 8231561: [lworld] C2 generates inefficient code for acmp

[tobias.hartmann at oracle.com]

Changeset: 85f25a764824
Author:    thartmann
Date:      2019-10-11 14:13 +0200
URL:       https://hg.openjdk.java.net/valhalla/valhalla/rev/85f25a764824

8231561: [lworld] C2 generates inefficient code for acmp
Reviewed-by: roland

! src/hotspot/cpu/x86/x86_64.ad
! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/graphKit.cpp
! src/hotspot/share/opto/graphKit.hpp
! src/hotspot/share/opto/lcm.cpp
! src/hotspot/share/opto/library_call.cpp
! src/hotspot/share/opto/macroArrayCopy.cpp
! src/hotspot/share/opto/memnode.cpp
! src/hotspot/share/opto/memnode.hpp
! src/hotspot/share/opto/parse2.cpp
! test/hotspot/jtreg/compiler/valhalla/valuetypes/TestCallingConventionC1.java
! test/hotspot/jtreg/compiler/valhalla/valuetypes/TestLWorld.java