From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- js/src/jit/x86-shared/BaselineIC-x86-shared.cpp | 44 +++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 js/src/jit/x86-shared/BaselineIC-x86-shared.cpp (limited to 'js/src/jit/x86-shared/BaselineIC-x86-shared.cpp') diff --git a/js/src/jit/x86-shared/BaselineIC-x86-shared.cpp b/js/src/jit/x86-shared/BaselineIC-x86-shared.cpp new file mode 100644 index 000000000..4e25f87bf --- /dev/null +++ b/js/src/jit/x86-shared/BaselineIC-x86-shared.cpp @@ -0,0 +1,44 @@ +/* -*- 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/BaselineIC.h" +#include "jit/SharedICHelpers.h" + +#include "jit/MacroAssembler-inl.h" + +using namespace js; +using namespace js::jit; + +bool +ICCompare_Double::Compiler::generateStubCode(MacroAssembler& masm) +{ + Label failure, notNaN; + masm.ensureDouble(R0, FloatReg0, &failure); + masm.ensureDouble(R1, FloatReg1, &failure); + + Register dest = R0.scratchReg(); + + Assembler::DoubleCondition cond = JSOpToDoubleCondition(op); + masm.mov(ImmWord(0), dest); + masm.compareDouble(cond, FloatReg0, FloatReg1); + masm.setCC(Assembler::ConditionFromDoubleCondition(cond), dest); + + // Check for NaN, if needed. + Assembler::NaNCond nanCond = Assembler::NaNCondFromDoubleCondition(cond); + if (nanCond != Assembler::NaN_HandledByCond) { + masm.j(Assembler::NoParity, ¬NaN); + masm.mov(ImmWord(nanCond == Assembler::NaN_IsTrue), dest); + masm.bind(¬NaN); + } + + masm.tagValue(JSVAL_TYPE_BOOLEAN, dest, R0); + EmitReturnFromIC(masm); + + // Failure case - jump to next stub + masm.bind(&failure); + EmitStubGuardFailure(masm); + return true; +} -- cgit v1.2.3