Mercurial > hg > truffle
comparison src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp @ 1201:24128c2ffa87
6921339: backout 6917766
Reviewed-by: mr
author | twisti |
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date | Fri, 29 Jan 2010 08:33:24 -0800 |
parents | ba263cfb7611 |
children | 18a389214829 |
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1200:ba263cfb7611 | 1201:24128c2ffa87 |
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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) { |