Mercurial > hg > truffle

comparison src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp @ 1201:24128c2ffa87

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6921339: backout 6917766 Reviewed-by: mr
author twisti
date Fri, 29 Jan 2010 08:33:24 -0800
parents ba263cfb7611
children 18a389214829
comparison
equal deleted inserted replaced
1200:ba263cfb7611 1201:24128c2ffa87
1 /* 1 /*
2 * Copyright 2000-2010 Sun Microsystems, Inc. All Rights Reserved. 2 * Copyright 2000-2009 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.
355 // done 355 // done
356 __ bind(*slow_case->continuation()); 356 __ bind(*slow_case->continuation());
357 } 357 }
358 358
359 359
360 int LIR_Assembler::emit_exception_handler() { 360 void LIR_Assembler::emit_exception_handler() {
361 // if the last instruction is a call (typically to do a throw which 361 // if the last instruction is a call (typically to do a throw which
362 // is coming at the end after block reordering) the return address 362 // is coming at the end after block reordering) the return address
363 // must still point into the code area in order to avoid assertion 363 // must still point into the code area in order to avoid assertion
364 // failures when searching for the corresponding bci => add a nop 364 // failures when searching for the corresponding bci => add a nop
365 // (was bug 5/14/1999 - gri) 365 // (was bug 5/14/1999 - gri)
371 address handler_base = __ start_a_stub(exception_handler_size); 371 address handler_base = __ start_a_stub(exception_handler_size);
372 372
373 if (handler_base == NULL) { 373 if (handler_base == NULL) {
374 // not enough space left for the handler 374 // not enough space left for the handler
375 bailout("exception handler overflow"); 375 bailout("exception handler overflow");
376 return -1; 376 return;
377 } 377 }
378 378 #ifdef ASSERT
379 int offset = code_offset(); 379 int offset = code_offset();
380 #endif // ASSERT
381 compilation()->offsets()->set_value(CodeOffsets::Exceptions, code_offset());
382
380 383
381 if (compilation()->has_exception_handlers() || compilation()->env()->jvmti_can_post_exceptions()) { 384 if (compilation()->has_exception_handlers() || compilation()->env()->jvmti_can_post_exceptions()) {
382 __ call(Runtime1::entry_for(Runtime1::handle_exception_id), relocInfo::runtime_call_type); 385 __ call(Runtime1::entry_for(Runtime1::handle_exception_id), relocInfo::runtime_call_type);
383 __ delayed()->nop(); 386 __ delayed()->nop();
384 } 387 }
385 388
386 __ call(Runtime1::entry_for(Runtime1::unwind_exception_id), relocInfo::runtime_call_type); 389 __ call(Runtime1::entry_for(Runtime1::unwind_exception_id), relocInfo::runtime_call_type);
387 __ delayed()->nop(); 390 __ delayed()->nop();
388 debug_only(__ stop("should have gone to the caller");) 391 debug_only(__ stop("should have gone to the caller");)
389 assert(code_offset() - offset <= exception_handler_size, "overflow"); 392 assert(code_offset() - offset <= exception_handler_size, "overflow");
393
390 __ end_a_stub(); 394 __ end_a_stub();
391 395 }
392 return offset; 396
393 } 397 void LIR_Assembler::emit_deopt_handler() {
394
395
396 int LIR_Assembler::emit_deopt_handler() {
397 // if the last instruction is a call (typically to do a throw which 398 // if the last instruction is a call (typically to do a throw which
398 // is coming at the end after block reordering) the return address 399 // is coming at the end after block reordering) the return address
399 // must still point into the code area in order to avoid assertion 400 // must still point into the code area in order to avoid assertion
400 // failures when searching for the corresponding bci => add a nop 401 // failures when searching for the corresponding bci => add a nop
401 // (was bug 5/14/1999 - gri) 402 // (was bug 5/14/1999 - gri)
405 ciMethod* method = compilation()->method(); 406 ciMethod* method = compilation()->method();
406 address handler_base = __ start_a_stub(deopt_handler_size); 407 address handler_base = __ start_a_stub(deopt_handler_size);
407 if (handler_base == NULL) { 408 if (handler_base == NULL) {
408 // not enough space left for the handler 409 // not enough space left for the handler
409 bailout("deopt handler overflow"); 410 bailout("deopt handler overflow");
410 return -1; 411 return;
411 } 412 }
412 413 #ifdef ASSERT
413 int offset = code_offset(); 414 int offset = code_offset();
415 #endif // ASSERT
416 compilation()->offsets()->set_value(CodeOffsets::Deopt, code_offset());
417
414 AddressLiteral deopt_blob(SharedRuntime::deopt_blob()->unpack()); 418 AddressLiteral deopt_blob(SharedRuntime::deopt_blob()->unpack());
419
415 __ JUMP(deopt_blob, G3_scratch, 0); // sethi;jmp 420 __ JUMP(deopt_blob, G3_scratch, 0); // sethi;jmp
416 __ delayed()->nop(); 421 __ delayed()->nop();
422
417 assert(code_offset() - offset <= deopt_handler_size, "overflow"); 423 assert(code_offset() - offset <= deopt_handler_size, "overflow");
424
418 debug_only(__ stop("should have gone to the caller");) 425 debug_only(__ stop("should have gone to the caller");)
426
419 __ end_a_stub(); 427 __ end_a_stub();
420
421 return offset;
422 } 428 }
423 429
424 430
425 void LIR_Assembler::jobject2reg(jobject o, Register reg) { 431 void LIR_Assembler::jobject2reg(jobject o, Register reg) {
426 if (o == NULL) { 432 if (o == NULL) {