Mercurial > hg > graal-compiler
diff src/cpu/sparc/vm/sparc.ad @ 4777:e9a5e0a812c8
7125896: Eliminate nested locks
Summary: Nested locks elimination done before lock nodes expansion by looking for outer locks of the same object.
Reviewed-by: never, twisti
author | kvn |
---|---|
date | Sat, 07 Jan 2012 13:26:43 -0800 |
parents | 5da7201222d5 |
children | 61b82be3b1ff |
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--- a/src/cpu/sparc/vm/sparc.ad Sat Jan 07 10:39:23 2012 -0800 +++ b/src/cpu/sparc/vm/sparc.ad Sat Jan 07 13:26:43 2012 -0800 @@ -10274,24 +10274,24 @@ // ============================================================================ // inlined locking and unlocking -instruct cmpFastLock(flagsRegP pcc, iRegP object, iRegP box, iRegP scratch2, o7RegP scratch ) %{ +instruct cmpFastLock(flagsRegP pcc, iRegP object, o1RegP box, iRegP scratch2, o7RegP scratch ) %{ match(Set pcc (FastLock object box)); - effect(KILL scratch, TEMP scratch2); + effect(TEMP scratch2, USE_KILL box, KILL scratch); ins_cost(100); - format %{ "FASTLOCK $object, $box; KILL $scratch, $scratch2, $box" %} + format %{ "FASTLOCK $object,$box\t! kills $box,$scratch,$scratch2" %} ins_encode( Fast_Lock(object, box, scratch, scratch2) ); ins_pipe(long_memory_op); %} -instruct cmpFastUnlock(flagsRegP pcc, iRegP object, iRegP box, iRegP scratch2, o7RegP scratch ) %{ +instruct cmpFastUnlock(flagsRegP pcc, iRegP object, o1RegP box, iRegP scratch2, o7RegP scratch ) %{ match(Set pcc (FastUnlock object box)); - effect(KILL scratch, TEMP scratch2); + effect(TEMP scratch2, USE_KILL box, KILL scratch); ins_cost(100); - format %{ "FASTUNLOCK $object, $box; KILL $scratch, $scratch2, $box" %} + format %{ "FASTUNLOCK $object,$box\t! kills $box,$scratch,$scratch2" %} ins_encode( Fast_Unlock(object, box, scratch, scratch2) ); ins_pipe(long_memory_op); %}