Mercurial > hg > truffle
view src/cpu/x86/vm/icache_x86.cpp @ 1433:efba53f86c4f
various fixes and enhancements
* correct refmap->oopmap conversion (register numbering, stack slot numbering)
* fixes for inlining (correct scoping in exception handler lookup, NPE in scope conversion)
* support for "jump to runtime stub" (patching code needs to be aware of jmp instruction)
* provide more information about methods (to allow inlining: has_balanced_monitors, etc.)
* fixes to signature type lookup
* isSubTypeOf: correct handling of array classes
* RiType: componentType/arrayOf
* prologue: inline cache check, icmiss stub
* klass state check (resolved but not initialized) in newinstance
* card table write barriers
* c1x classes are optional (to allow running c1 without them)
* correct for stored frame pointer in calling conventions (methods with arguments on stack)
* getType(Class<?>) for some basic types, used for optimizations and folding
* RiMethod/RiType: throw exception instead of silent failure on unsupported operations
* RiType: resolved/unresolved array type support
* refactoring: new on-demand template generation mechanism
* optimizations: template specialization for no_null_check, given length, etc.
author | Lukas Stadler <lukas.stadler@oracle.com> |
---|---|
date | Thu, 16 Sep 2010 19:42:20 -0700 |
parents | 9ee9cf798b59 |
children | c18cbe5936b8 |
line wrap: on
line source
/* * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ #include "incls/_precompiled.incl" #include "incls/_icache_x86.cpp.incl" #define __ _masm-> void ICacheStubGenerator::generate_icache_flush(ICache::flush_icache_stub_t* flush_icache_stub) { StubCodeMark mark(this, "ICache", "flush_icache_stub"); address start = __ pc(); #ifdef AMD64 const Register addr = c_rarg0; const Register lines = c_rarg1; const Register magic = c_rarg2; Label flush_line, done; __ testl(lines, lines); __ jcc(Assembler::zero, done); // Force ordering wrt cflush. // Other fence and sync instructions won't do the job. __ mfence(); __ bind(flush_line); __ clflush(Address(addr, 0)); __ addptr(addr, ICache::line_size); __ decrementl(lines); __ jcc(Assembler::notZero, flush_line); __ mfence(); __ bind(done); #else const Address magic(rsp, 3*wordSize); __ lock(); __ addl(Address(rsp, 0), 0); #endif // AMD64 __ movptr(rax, magic); // Handshake with caller to make sure it happened! __ ret(0); // Must be set here so StubCodeMark destructor can call the flush stub. *flush_icache_stub = (ICache::flush_icache_stub_t)start; } #undef __