1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jit/shared/MoveEmitter-x86-shared.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,65 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * vim: set ts=8 sts=4 et sw=4 tw=99:
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef jit_MoveEmitter_x86_shared_h
1.11 +#define jit_MoveEmitter_x86_shared_h
1.12 +
1.13 +#if defined(JS_CODEGEN_X86)
1.14 +# include "jit/x86/MacroAssembler-x86.h"
1.15 +#elif defined(JS_CODEGEN_X64)
1.16 +# include "jit/x64/MacroAssembler-x64.h"
1.17 +#else
1.18 +# error "Wrong architecture. Only x86 and x64 should build this file!"
1.19 +#endif
1.20 +#include "jit/MoveResolver.h"
1.21 +
1.22 +namespace js {
1.23 +namespace jit {
1.24 +
1.25 +class CodeGenerator;
1.26 +
1.27 +class MoveEmitterX86
1.28 +{
1.29 + bool inCycle_;
1.30 + MacroAssemblerSpecific &masm;
1.31 +
1.32 + // Original stack push value.
1.33 + uint32_t pushedAtStart_;
1.34 +
1.35 + // This is a store stack offset for the cycle-break spill slot, snapshotting
1.36 + // codegen->framePushed_ at the time it is allocated. -1 if not allocated.
1.37 + int32_t pushedAtCycle_;
1.38 +
1.39 + void assertDone();
1.40 + Address cycleSlot();
1.41 + Address toAddress(const MoveOperand &operand) const;
1.42 + Operand toOperand(const MoveOperand &operand) const;
1.43 + Operand toPopOperand(const MoveOperand &operand) const;
1.44 +
1.45 + size_t characterizeCycle(const MoveResolver &moves, size_t i,
1.46 + bool *allGeneralRegs, bool *allFloatRegs);
1.47 + bool maybeEmitOptimizedCycle(const MoveResolver &moves, size_t i,
1.48 + bool allGeneralRegs, bool allFloatRegs, size_t swapCount);
1.49 + void emitInt32Move(const MoveOperand &from, const MoveOperand &to);
1.50 + void emitGeneralMove(const MoveOperand &from, const MoveOperand &to);
1.51 + void emitFloat32Move(const MoveOperand &from, const MoveOperand &to);
1.52 + void emitDoubleMove(const MoveOperand &from, const MoveOperand &to);
1.53 + void breakCycle(const MoveOperand &to, MoveOp::Type type);
1.54 + void completeCycle(const MoveOperand &to, MoveOp::Type type);
1.55 +
1.56 + public:
1.57 + MoveEmitterX86(MacroAssemblerSpecific &masm);
1.58 + ~MoveEmitterX86();
1.59 + void emit(const MoveResolver &moves);
1.60 + void finish();
1.61 +};
1.62 +
1.63 +typedef MoveEmitterX86 MoveEmitter;
1.64 +
1.65 +} // ion
1.66 +} // js
1.67 +
1.68 +#endif /* jit_MoveEmitter_x86_shared_h */
