SharedICRegisters-arm.h (1744B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- 2 * vim: set ts=8 sts=2 et sw=2 tw=80: 3 * This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef jit_arm_SharedICRegisters_arm_h 8 #define jit_arm_SharedICRegisters_arm_h 9 10 #include "jit/arm/Assembler-arm.h" 11 #include "jit/Registers.h" 12 #include "jit/RegisterSets.h" 13 14 namespace js { 15 namespace jit { 16 17 // r15 = program-counter 18 // r14 = link-register 19 // r13 = stack-pointer 20 // r11 = frame-pointer 21 22 // ValueOperands R0, R1, and R2. 23 // R0 == JSReturnReg, and R2 uses registers not preserved across calls. R1 value 24 // should be preserved across calls. 25 static constexpr ValueOperand R0(r3, r2); 26 static constexpr ValueOperand R1(r5, r4); 27 static constexpr ValueOperand R2(r1, r0); 28 29 // ICTailCallReg and ICStubReg 30 // These use registers that are not preserved across calls. 31 static constexpr Register ICTailCallReg = r14; 32 static constexpr Register ICStubReg = r9; 33 34 // Register used internally by MacroAssemblerARM. 35 static constexpr Register BaselineSecondScratchReg = r6; 36 37 // R7 - R9 are generally available for use within stubcode. 38 39 // Note that ICTailCallReg is actually just the link register. In ARM code 40 // emission, we do not clobber ICTailCallReg since we keep the return 41 // address for calls there. 42 43 // FloatReg0 must be equal to ReturnFloatReg. 44 static constexpr FloatRegister FloatReg0 = d0; 45 static constexpr FloatRegister FloatReg1 = d1; 46 static constexpr FloatRegister FloatReg2 = d2; 47 static constexpr FloatRegister FloatReg3 = d3; 48 49 } // namespace jit 50 } // namespace js 51 52 #endif /* jit_arm_SharedICRegisters_arm_h */