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comparison src/cpu/x86/vm/assembler_x86.hpp @ 420:a1980da045cc

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6462850: generate biased locking code in C2 ideal graph Summary: Inline biased locking code in C2 ideal graph during macro nodes expansion Reviewed-by: never
author kvn
date Fri, 07 Nov 2008 09:29:38 -0800
parents 2649e5276dd7
children 56aae7be60d4
comparison
equal deleted inserted replaced
419:0bf25c4807f9 420:a1980da045cc
1778 // slow case directly. Leaves condition codes set for C2's Fast_Lock node. 1778 // slow case directly. Leaves condition codes set for C2's Fast_Lock node.
1779 // Returns offset of first potentially-faulting instruction for null 1779 // Returns offset of first potentially-faulting instruction for null
1780 // check info (currently consumed only by C1). If 1780 // check info (currently consumed only by C1). If
1781 // swap_reg_contains_mark is true then returns -1 as it is assumed 1781 // swap_reg_contains_mark is true then returns -1 as it is assumed
1782 // the calling code has already passed any potential faults. 1782 // the calling code has already passed any potential faults.
1783 int biased_locking_enter(Register lock_reg, Register obj_reg, Register swap_reg, Register tmp_reg, 1783 int biased_locking_enter(Register lock_reg, Register obj_reg,
1784 Register swap_reg, Register tmp_reg,
1784 bool swap_reg_contains_mark, 1785 bool swap_reg_contains_mark,
1785 Label& done, Label* slow_case = NULL, 1786 Label& done, Label* slow_case = NULL,
1786 BiasedLockingCounters* counters = NULL); 1787 BiasedLockingCounters* counters = NULL);
1787 void biased_locking_exit (Register obj_reg, Register temp_reg, Label& done); 1788 void biased_locking_exit (Register obj_reg, Register temp_reg, Label& done);
1788 1789