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comparison src/cpu/sparc/vm/assembler_sparc.hpp @ 644:c517646eef23

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6813212: factor duplicated assembly code for general subclass check (for 6655638) Summary: Code in interp_masm, stubGenerator, c1_LIRAssembler, and AD files moved into MacroAssembler. Reviewed-by: kvn
author jrose
date Fri, 13 Mar 2009 18:39:22 -0700
parents 9adddb8c0fc8
children c89f86385056
comparison
equal deleted inserted replaced
643:c771b7f43bbf 644:c517646eef23
2325 RegisterConstant itable_index, 2325 RegisterConstant itable_index,
2326 Register method_result, 2326 Register method_result,
2327 Register temp_reg, Register temp2_reg, 2327 Register temp_reg, Register temp2_reg,
2328 Label& no_such_interface); 2328 Label& no_such_interface);
2329 2329
2330 // Test sub_klass against super_klass, with fast and slow paths.
2331
2332 // The fast path produces a tri-state answer: yes / no / maybe-slow.
2333 // One of the three labels can be NULL, meaning take the fall-through.
2334 // If super_check_offset is -1, the value is loaded up from super_klass.
2335 // No registers are killed, except temp_reg and temp2_reg.
2336 // If super_check_offset is not -1, temp2_reg is not used and can be noreg.
2337 void check_klass_subtype_fast_path(Register sub_klass,
2338 Register super_klass,
2339 Register temp_reg,
2340 Register temp2_reg,
2341 Label* L_success,
2342 Label* L_failure,
2343 Label* L_slow_path,
2344 RegisterConstant super_check_offset = RegisterConstant(-1),
2345 Register instanceof_hack = noreg);
2346
2347 // The rest of the type check; must be wired to a corresponding fast path.
2348 // It does not repeat the fast path logic, so don't use it standalone.
2349 // The temp_reg can be noreg, if no temps are available.
2350 // It can also be sub_klass or super_klass, meaning it's OK to kill that one.
2351 // Updates the sub's secondary super cache as necessary.
2352 void check_klass_subtype_slow_path(Register sub_klass,
2353 Register super_klass,
2354 Register temp_reg,
2355 Register temp2_reg,
2356 Register temp3_reg,
2357 Register temp4_reg,
2358 Label* L_success,
2359 Label* L_failure);
2360
2361 // Simplified, combined version, good for typical uses.
2362 // Falls through on failure.
2363 void check_klass_subtype(Register sub_klass,
2364 Register super_klass,
2365 Register temp_reg,
2366 Register temp2_reg,
2367 Label& L_success);
2368
2369
2330 // Stack overflow checking 2370 // Stack overflow checking
2331 2371
2332 // Note: this clobbers G3_scratch 2372 // Note: this clobbers G3_scratch
2333 void bang_stack_with_offset(int offset) { 2373 void bang_stack_with_offset(int offset) {
2334 // stack grows down, caller passes positive offset 2374 // stack grows down, caller passes positive offset