429b1c80a1f74277e16676ca1ee632858acd8427 - platform/libcore

commit	429b1c80a1f74277e16676ca1ee632858acd8427	[log] [tgz]
author	Ivan Krylov <ivan@azul.com>	Wed Mar 30 17:04:14 2016 +0200
committer	Ivan P Krylov <ikrylov@openjdk.org>	Wed Mar 30 17:04:14 2016 +0200
tree	3cae20634c77ae27b4b6d2e670147904fd81e7bf
parent	cf5871861f53b27e33a02d1e6f83cb7c2ff8a1e4 [diff]

8147844: new method j.l.Runtime.onSpinWait() and the corresponding x86 hotspot instrinsic

Adds c1 & c2 x86 intrinsics for j.l.Runtime.onSpinWait() that utilize the PAUSE instruction

Co-authored-by: Yuri Gaevsky <ygaevsky@azul.com>
Reviewed-by: iveresov, kvn

hotspot/src/cpu/aarch64/vm/c1_LIRAssembler_aarch64.cpp[diff]
hotspot/src/cpu/ppc/vm/c1_LIRAssembler_ppc.cpp[diff]
hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp[diff]
hotspot/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp[diff]
hotspot/src/cpu/x86/vm/vm_version_x86.hpp[diff]
hotspot/src/cpu/x86/vm/x86.ad[diff]
hotspot/src/share/vm/c1/c1_Compiler.cpp[diff]
hotspot/src/share/vm/c1/c1_LIR.cpp[diff]
hotspot/src/share/vm/c1/c1_LIR.hpp[diff]
hotspot/src/share/vm/c1/c1_LIRAssembler.cpp[diff]
hotspot/src/share/vm/c1/c1_LIRAssembler.hpp[diff]
hotspot/src/share/vm/c1/c1_LIRGenerator.cpp[diff]
hotspot/src/share/vm/classfile/vmSymbols.hpp[diff]
hotspot/src/share/vm/opto/c2compiler.cpp[diff]
hotspot/src/share/vm/opto/classes.hpp[diff]
hotspot/src/share/vm/opto/library_call.cpp[diff]
hotspot/src/share/vm/opto/matcher.cpp[diff]
hotspot/src/share/vm/opto/memnode.cpp[diff]
hotspot/src/share/vm/opto/memnode.hpp[diff]
hotspot/src/share/vm/runtime/vmStructs.cpp[diff]
hotspot/src/share/vm/runtime/vm_version.hpp[diff]
hotspot/test/compiler/onSpinWait/TestOnSpinWait.java[Added - diff]

22 files changed

tree: 3cae20634c77ae27b4b6d2e670147904fd81e7bf