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comparison src/cpu/x86/vm/c1_LIRAssembler_x86.cpp @ 1213:6deeaebad47a

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6902182: 4/4 Starting with jdwp agent should not incur performance penalty Summary: Rename can_post_exceptions support to can_post_on_exceptions. Add support for should_post_on_exceptions flag to permit per JavaThread optimizations. Reviewed-by: never, kvn, dcubed Contributed-by: tom.deneau@amd.com
author dcubed
date Mon, 01 Feb 2010 17:35:05 -0700
parents 323bd24c6520
children 7f8790caccb0
comparison
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1196:f3345b7b01b4 1213:6deeaebad47a
1 /* 1 /*
2 * Copyright 2000-2009 Sun Microsystems, Inc. All Rights Reserved. 2 * Copyright 2000-2010 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.
440 440
441 compilation()->offsets()->set_value(CodeOffsets::Exceptions, code_offset()); 441 compilation()->offsets()->set_value(CodeOffsets::Exceptions, code_offset());
442 442
443 // if the method does not have an exception handler, then there is 443 // if the method does not have an exception handler, then there is
444 // no reason to search for one 444 // no reason to search for one
445 if (compilation()->has_exception_handlers() || compilation()->env()->jvmti_can_post_exceptions()) { 445 if (compilation()->has_exception_handlers() || compilation()->env()->jvmti_can_post_on_exceptions()) {
446 // the exception oop and pc are in rax, and rdx 446 // the exception oop and pc are in rax, and rdx
447 // no other registers need to be preserved, so invalidate them 447 // no other registers need to be preserved, so invalidate them
448 __ invalidate_registers(false, true, true, false, true, true); 448 __ invalidate_registers(false, true, true, false, true, true);
449 449
450 // check that there is really an exception 450 // check that there is really an exception