| /* -*- 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/. */ |
| |
| #include "jit/BaselineCompiler.h" |
| #include "jit/BaselineIC.h" |
| #include "jit/BaselineJIT.h" |
| #include "jit/Linker.h" |
| #include "jit/SharedICHelpers.h" |
| |
| #include "jit/MacroAssembler-inl.h" |
| |
| using namespace js; |
| using namespace js::jit; |
| |
| namespace js { |
| namespace jit { |
| |
| // ICCompare_Int32 |
| |
| bool |
| ICCompare_Int32::Compiler::generateStubCode(MacroAssembler& masm) |
| { |
| // Guard that R0 is an integer and R1 is an integer. |
| Label failure; |
| masm.branchTestInt32(Assembler::NotEqual, R0, &failure); |
| masm.branchTestInt32(Assembler::NotEqual, R1, &failure); |
| |
| // Compare payload regs of R0 and R1. |
| Assembler::Condition cond = JSOpToCondition(op, /* signed = */true); |
| masm.cmp32(R0.payloadReg(), R1.payloadReg()); |
| masm.ma_mov(Imm32(1), R0.payloadReg(), LeaveCC, cond); |
| masm.ma_mov(Imm32(0), R0.payloadReg(), LeaveCC, Assembler::InvertCondition(cond)); |
| |
| // Result is implicitly boxed already. |
| masm.tagValue(JSVAL_TYPE_BOOLEAN, R0.payloadReg(), R0); |
| EmitReturnFromIC(masm); |
| |
| // Failure case - jump to next stub. |
| masm.bind(&failure); |
| EmitStubGuardFailure(masm); |
| |
| return true; |
| } |
| |
| bool |
| ICCompare_Double::Compiler::generateStubCode(MacroAssembler& masm) |
| { |
| Label failure, isNaN; |
| masm.ensureDouble(R0, FloatReg0, &failure); |
| masm.ensureDouble(R1, FloatReg1, &failure); |
| |
| Register dest = R0.scratchReg(); |
| |
| Assembler::DoubleCondition doubleCond = JSOpToDoubleCondition(op); |
| Assembler::Condition cond = Assembler::ConditionFromDoubleCondition(doubleCond); |
| |
| masm.compareDouble(FloatReg0, FloatReg1); |
| masm.ma_mov(Imm32(0), dest); |
| masm.ma_mov(Imm32(1), dest, LeaveCC, cond); |
| |
| masm.tagValue(JSVAL_TYPE_BOOLEAN, dest, R0); |
| EmitReturnFromIC(masm); |
| |
| // Failure case - jump to next stub. |
| masm.bind(&failure); |
| EmitStubGuardFailure(masm); |
| return true; |
| } |
| |
| } // namespace jit |
| } // namespace js |