| /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| * vim: set ts=8 sts=4 et sw=4 tw=99: |
| * This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| #ifndef jit_arm64_SharedICRegisters_arm64_h |
| #define jit_arm64_SharedICRegisters_arm64_h |
| |
| #include "jit/MacroAssembler.h" |
| |
| namespace js { |
| namespace jit { |
| |
| // Must be a callee-saved register for preservation around generateEnterJIT(). |
| static constexpr Register BaselineFrameReg = r23; |
| static constexpr ARMRegister BaselineFrameReg64 = { BaselineFrameReg, 64 }; |
| |
| // BaselineStackReg is intentionally undefined on ARM64. |
| // Refer to the comment next to the definition of RealStackPointer. |
| |
| // ValueOperands R0, R1, and R2. |
| // R0 == JSReturnReg, and R2 uses registers not preserved across calls. |
| // R1 value should be preserved across calls. |
| static constexpr Register R0_ = r2; |
| static constexpr Register R1_ = r19; |
| static constexpr Register R2_ = r0; |
| |
| static constexpr ValueOperand R0(R0_); |
| static constexpr ValueOperand R1(R1_); |
| static constexpr ValueOperand R2(R2_); |
| |
| // ICTailCallReg and ICStubReg use registers that are not preserved across calls. |
| static constexpr Register ICTailCallReg = r30; |
| static constexpr Register ICStubReg = r9; |
| |
| // ExtractTemps must be callee-save registers: |
| // ICSetProp_Native::Compiler::generateStubCode() stores the object |
| // in ExtractTemp0, but then calls callTypeUpdateIC(), which clobbers |
| // caller-save registers. |
| // They should also not be the scratch registers ip0 or ip1, |
| // since those get clobbered all the time. |
| static constexpr Register ExtractTemp0 = r24; |
| static constexpr Register ExtractTemp1 = r25; |
| |
| // R7 - R9 are generally available for use within stubcode. |
| |
| // Note that BaselineTailCallReg is actually just the link |
| // register. In ARM code emission, we do not clobber BaselineTailCallReg |
| // since we keep the return address for calls there. |
| |
| static constexpr FloatRegister FloatReg0 = { FloatRegisters::d0, FloatRegisters::Double }; |
| static constexpr FloatRegister FloatReg1 = { FloatRegisters::d1, FloatRegisters::Double }; |
| |
| } // namespace jit |
| } // namespace js |
| |
| #endif // jit_arm64_SharedICRegisters_arm64_h |
