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comparison src/cpu/x86/vm/x86_32.ad @ 4777:e9a5e0a812c8

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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 1dc233a8c7fe
children fd8114661503
comparison
equal deleted inserted replaced
4776:5da7201222d5 4777:e9a5e0a812c8
13433 %} 13433 %}
13434 13434
13435 // inlined locking and unlocking 13435 // inlined locking and unlocking
13436 13436
13437 13437
13438 instruct cmpFastLock( eFlagsReg cr, eRegP object, eRegP box, eAXRegI tmp, eRegP scr) %{ 13438 instruct cmpFastLock( eFlagsReg cr, eRegP object, eBXRegP box, eAXRegI tmp, eRegP scr) %{
13439 match( Set cr (FastLock object box) ); 13439 match( Set cr (FastLock object box) );
13440 effect( TEMP tmp, TEMP scr ); 13440 effect( TEMP tmp, TEMP scr, USE_KILL box );
13441 ins_cost(300); 13441 ins_cost(300);
13442 format %{ "FASTLOCK $object, $box KILLS $tmp,$scr" %} 13442 format %{ "FASTLOCK $object,$box\t! kills $box,$tmp,$scr" %}
13443 ins_encode( Fast_Lock(object,box,tmp,scr) ); 13443 ins_encode( Fast_Lock(object,box,tmp,scr) );
13444 ins_pipe( pipe_slow ); 13444 ins_pipe( pipe_slow );
13445 %} 13445 %}
13446 13446
13447 instruct cmpFastUnlock( eFlagsReg cr, eRegP object, eAXRegP box, eRegP tmp ) %{ 13447 instruct cmpFastUnlock( eFlagsReg cr, eRegP object, eAXRegP box, eRegP tmp ) %{
13448 match( Set cr (FastUnlock object box) ); 13448 match( Set cr (FastUnlock object box) );
13449 effect( TEMP tmp ); 13449 effect( TEMP tmp, USE_KILL box );
13450 ins_cost(300); 13450 ins_cost(300);
13451 format %{ "FASTUNLOCK $object, $box, $tmp" %} 13451 format %{ "FASTUNLOCK $object,$box\t! kills $box,$tmp" %}
13452 ins_encode( Fast_Unlock(object,box,tmp) ); 13452 ins_encode( Fast_Unlock(object,box,tmp) );
13453 ins_pipe( pipe_slow ); 13453 ins_pipe( pipe_slow );
13454 %} 13454 %}
13455 13455
13456 13456