mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
172 lines
4.9 KiB
C++
172 lines
4.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=4 sw=4 et tw=99:
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla SpiderMonkey JavaScript 1.9 code, released
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* May 28, 2008.
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*
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* The Initial Developer of the Original Code is
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* Brendan Eich <brendan@mozilla.org>
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*
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* Contributor(s):
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* David Anderson <danderson@mozilla.com>
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* David Mandelin <dmandelin@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#if !defined(jsstub_compiler_h__) && defined(JS_METHODJIT)
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#define jsstub_compiler_h__
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#include "jscntxt.h"
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#include "jstl.h"
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#include "MethodJIT.h"
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#include "methodjit/FrameState.h"
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#include "CodeGenIncludes.h"
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namespace js {
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namespace mjit {
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class Compiler;
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class StubCompiler
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{
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typedef JSC::MacroAssembler::Call Call;
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typedef JSC::MacroAssembler::Jump Jump;
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typedef JSC::MacroAssembler::Label Label;
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struct CrossPatch {
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CrossPatch(Jump from, Label to)
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: from(from), to(to)
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{ }
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Jump from;
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Label to;
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};
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struct CrossJumpInScript {
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CrossJumpInScript(Jump from, jsbytecode *pc)
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: from(from), pc(pc)
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{ }
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Jump from;
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jsbytecode *pc;
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};
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JSContext *cx;
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Compiler &cc;
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FrameState &frame;
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JSScript *script;
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public:
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Assembler masm;
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private:
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uint32 generation;
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uint32 lastGeneration;
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/* :TODO: oom check */
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Vector<CrossPatch, 64, SystemAllocPolicy> exits;
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Vector<CrossPatch, 64, SystemAllocPolicy> joins;
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Vector<CrossJumpInScript, 64, SystemAllocPolicy> scriptJoins;
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Vector<Jump, 8, SystemAllocPolicy> jumpList;
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public:
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StubCompiler(JSContext *cx, mjit::Compiler &cc, FrameState &frame, JSScript *script);
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bool init(uint32 nargs);
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size_t size() {
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return masm.size();
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}
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uint8 *buffer() {
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return masm.buffer();
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}
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Call vpInc(JSOp op, uint32 depth);
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#define STUB_CALL_TYPE(type) \
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Call call(type stub) { \
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return stubCall(JS_FUNC_TO_DATA_PTR(void *, stub)); \
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}
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STUB_CALL_TYPE(JSObjStub);
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STUB_CALL_TYPE(VoidStub);
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STUB_CALL_TYPE(VoidStubUInt32);
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STUB_CALL_TYPE(VoidPtrStubUInt32);
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STUB_CALL_TYPE(VoidPtrStub);
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STUB_CALL_TYPE(BoolStub);
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STUB_CALL_TYPE(VoidStubAtom);
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STUB_CALL_TYPE(VoidStubPC);
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#undef STUB_CALL_TYPE
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/*
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* Force a frame sync and return a label before the syncing code.
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* A Jump may bind to the label with leaveExitDirect().
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*/
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JSC::MacroAssembler::Label syncExit(Uses uses);
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/*
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* Sync the exit, and state that code will be immediately outputted
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* to the out-of-line buffer.
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*/
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JSC::MacroAssembler::Label syncExitAndJump(Uses uses);
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/* Exits from the fast path into the slow path. */
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void linkExit(Jump j, Uses uses);
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void linkExitForBranch(Jump j);
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void linkExitDirect(Jump j, Label L);
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void leave();
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void leaveWithDepth(uint32 depth);
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/*
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* Rejoins slow-path code back to the fast-path. The invalidation param
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* specifies how many stack slots below sp must not be reloaded from
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* registers.
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*/
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void rejoin(Changes changes);
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void linkRejoin(Jump j);
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/* Finish all native code patching. */
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void fixCrossJumps(uint8 *ncode, size_t offset, size_t total);
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void finalize(uint8 *ncode);
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void jumpInScript(Jump j, jsbytecode *target);
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void crossJump(Jump j, Label l);
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private:
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Call stubCall(void *ptr);
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Call stubCall(void *ptr, uint32 slots);
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};
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} /* namepsace mjit */
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} /* namespace js */
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#endif /* jsstub_compiler_h__ */
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