michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * vim: set ts=8 sts=4 et sw=4 tw=99:
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef jit_arm_BaselineRegisters_arm_h
michael@0: #define jit_arm_BaselineRegisters_arm_h
michael@0: 
michael@0: #ifdef JS_ION
michael@0: 
michael@0: #include "jit/IonMacroAssembler.h"
michael@0: 
michael@0: namespace js {
michael@0: namespace jit {
michael@0: 
michael@0: // r15 = program-counter
michael@0: // r14 = link-register
michael@0: 
michael@0: // r13 = stack-pointer
michael@0: // r11 = frame-pointer
michael@0: static MOZ_CONSTEXPR_VAR Register BaselineFrameReg = r11;
michael@0: static MOZ_CONSTEXPR_VAR Register BaselineStackReg = sp;
michael@0: 
michael@0: // ValueOperands R0, R1, and R2.
michael@0: // R0 == JSReturnReg, and R2 uses registers not
michael@0: // preserved across calls.  R1 value should be
michael@0: // preserved across calls.
michael@0: static MOZ_CONSTEXPR_VAR ValueOperand R0(r3, r2);
michael@0: static MOZ_CONSTEXPR_VAR ValueOperand R1(r5, r4);
michael@0: static MOZ_CONSTEXPR_VAR ValueOperand R2(r1, r0);
michael@0: 
michael@0: // BaselineTailCallReg and BaselineStubReg
michael@0: // These use registers that are not preserved across
michael@0: // calls.
michael@0: static MOZ_CONSTEXPR_VAR Register BaselineTailCallReg = r14;
michael@0: static MOZ_CONSTEXPR_VAR Register BaselineStubReg     = r9;
michael@0: 
michael@0: static MOZ_CONSTEXPR_VAR Register ExtractTemp0        = InvalidReg;
michael@0: static MOZ_CONSTEXPR_VAR Register ExtractTemp1        = InvalidReg;
michael@0: 
michael@0: // Register used internally by MacroAssemblerARM.
michael@0: static MOZ_CONSTEXPR_VAR Register BaselineSecondScratchReg = r6;
michael@0: 
michael@0: // R7 - R9 are generally available for use within stubcode.
michael@0: 
michael@0: // Note that BaselineTailCallReg is actually just the link
michael@0: // register.  In ARM code emission, we do not clobber BaselineTailCallReg
michael@0: // since we keep the return address for calls there.
michael@0: 
michael@0: // FloatReg0 must be equal to ReturnFloatReg.
michael@0: static MOZ_CONSTEXPR_VAR FloatRegister FloatReg0      = d0;
michael@0: static MOZ_CONSTEXPR_VAR FloatRegister FloatReg1      = d1;
michael@0: 
michael@0: } // namespace jit
michael@0: } // namespace js
michael@0: 
michael@0: #endif // JS_ION
michael@0: 
michael@0: #endif /* jit_arm_BaselineRegisters_arm_h */