Mercurial > hg > graal-jvmci-8
comparison src/share/vm/opto/output.cpp @ 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 |
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date | Sat, 07 Jan 2012 13:26:43 -0800 |
parents | 739a9abbbd4b |
children | fd8114661503 |
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4776:5da7201222d5 | 4777:e9a5e0a812c8 |
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922 } else { | 922 } else { |
923 const TypePtr *tp = obj_node->bottom_type()->make_ptr(); | 923 const TypePtr *tp = obj_node->bottom_type()->make_ptr(); |
924 scval = new ConstantOopWriteValue(tp->is_oopptr()->const_oop()->constant_encoding()); | 924 scval = new ConstantOopWriteValue(tp->is_oopptr()->const_oop()->constant_encoding()); |
925 } | 925 } |
926 | 926 |
927 OptoReg::Name box_reg = BoxLockNode::stack_slot(box_node); | 927 OptoReg::Name box_reg = BoxLockNode::reg(box_node); |
928 Location basic_lock = Location::new_stk_loc(Location::normal,_regalloc->reg2offset(box_reg)); | 928 Location basic_lock = Location::new_stk_loc(Location::normal,_regalloc->reg2offset(box_reg)); |
929 while( !box_node->is_BoxLock() ) box_node = box_node->in(1); | 929 bool eliminated = (box_node->is_BoxLock() && box_node->as_BoxLock()->is_eliminated()); |
930 monarray->append(new MonitorValue(scval, basic_lock, box_node->as_BoxLock()->is_eliminated())); | 930 monarray->append(new MonitorValue(scval, basic_lock, eliminated)); |
931 } | 931 } |
932 | 932 |
933 // We dump the object pool first, since deoptimization reads it in first. | 933 // We dump the object pool first, since deoptimization reads it in first. |
934 debug_info()->dump_object_pool(objs); | 934 debug_info()->dump_object_pool(objs); |
935 | 935 |