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8004318: JEP-171: Support Unsafe fences intrinsics

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Add three memory-ordering intrinsics to the sun.misc.Unsafe class.

Reviewed-by: twisti, kvn
This commit is contained in:
Aleksey Shipilev 2012-12-18 17:37:44 -08:00 • committed by Vladimir Kozlov
parent 52da261983
commit 4c293ebcd6
5 changed files with 70 additions and 0 deletions
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9
hotspot/src/share/vm/classfile/vmSymbols.hpp
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@ -756,6 +756,15 @@
do_intrinsic(_unpark, sun_misc_Unsafe, unpark_name, unpark_signature, F_RN) \
do_name( unpark_name, "unpark") \
do_alias( unpark_signature, /*(LObject;)V*/ object_void_signature) \
do_intrinsic(_loadFence, sun_misc_Unsafe, loadFence_name, loadFence_signature, F_RN) \
do_name( loadFence_name, "loadFence") \
do_alias( loadFence_signature, void_method_signature) \
do_intrinsic(_storeFence, sun_misc_Unsafe, storeFence_name, storeFence_signature, F_RN) \
do_name( storeFence_name, "storeFence") \
do_alias( storeFence_signature, void_method_signature) \
do_intrinsic(_fullFence, sun_misc_Unsafe, fullFence_name, fullFence_signature, F_RN) \
do_name( fullFence_name, "fullFence") \
do_alias( fullFence_signature, void_method_signature) \
\
/* unsafe memory references (there are a lot of them...) */ \
do_signature(getObject_signature, "(Ljava/lang/Object;J)Ljava/lang/Object;") \