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comparison src/cpu/x86/vm/c1_MacroAssembler_x86.cpp @ 1295:3cf667df43ef

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6919934: JSR 292 needs to support x86 C1 Summary: This implements JSR 292 support for C1 x86. Reviewed-by: never, jrose, kvn
author twisti
date Tue, 09 Mar 2010 20:16:19 +0100
parents bd02caa94611
children c18cbe5936b8
comparison
equal deleted inserted replaced
1293:51db1e4b379d 1295:3cf667df43ef
1 /* 1 /*
2 * Copyright 1999-2009 Sun Microsystems, Inc. All Rights Reserved. 2 * Copyright 1999-2010 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
315 const int ic_cmp_size = LP64_ONLY(10) NOT_LP64(9); 315 const int ic_cmp_size = LP64_ONLY(10) NOT_LP64(9);
316 assert(offset() - start_offset == ic_cmp_size, "check alignment in emit_method_entry"); 316 assert(offset() - start_offset == ic_cmp_size, "check alignment in emit_method_entry");
317 } 317 }
318 318
319 319
320 void C1_MacroAssembler::method_exit(bool restore_frame) {
321 if (restore_frame) {
322 leave();
323 }
324 ret(0);
325 }
326
327
328 void C1_MacroAssembler::build_frame(int frame_size_in_bytes) { 320 void C1_MacroAssembler::build_frame(int frame_size_in_bytes) {
329 // Make sure there is enough stack space for this method's activation. 321 // Make sure there is enough stack space for this method's activation.
330 // Note that we do this before doing an enter(). This matches the 322 // Note that we do this before doing an enter(). This matches the
331 // ordering of C2's stack overflow check / rsp decrement and allows 323 // ordering of C2's stack overflow check / rsp decrement and allows
332 // the SharedRuntime stack overflow handling to be consistent 324 // the SharedRuntime stack overflow handling to be consistent
333 // between the two compilers. 325 // between the two compilers.
334 generate_stack_overflow_check(frame_size_in_bytes); 326 generate_stack_overflow_check(frame_size_in_bytes);
335 327
336 enter(); 328 push(rbp);
337 #ifdef TIERED 329 #ifdef TIERED
338 // c2 leaves fpu stack dirty. Clean it on entry 330 // c2 leaves fpu stack dirty. Clean it on entry
339 if (UseSSE < 2 ) { 331 if (UseSSE < 2 ) {
340 empty_FPU_stack(); 332 empty_FPU_stack();
341 } 333 }
342 #endif // TIERED 334 #endif // TIERED
343 decrement(rsp, frame_size_in_bytes); // does not emit code for frame_size == 0 335 decrement(rsp, frame_size_in_bytes); // does not emit code for frame_size == 0
336 }
337
338
339 void C1_MacroAssembler::remove_frame(int frame_size_in_bytes) {
340 increment(rsp, frame_size_in_bytes); // Does not emit code for frame_size == 0
341 pop(rbp);
344 } 342 }
345 343
346 344
347 void C1_MacroAssembler::unverified_entry(Register receiver, Register ic_klass) { 345 void C1_MacroAssembler::unverified_entry(Register receiver, Register ic_klass) {
348 if (C1Breakpoint) int3(); 346 if (C1Breakpoint) int3();