C++ (Cpp) MAsmJSCall Examples

Example #1

void
CodeGeneratorX86::postAsmJSCall(LAsmJSCall *lir)
{
    MAsmJSCall *mir = lir->mir();
    if (mir->type() != MIRType_Double || mir->callee().which() != MAsmJSCall::Callee::Builtin)
        return;

    masm.reserveStack(sizeof(double));
    masm.fstp(Operand(esp, 0));
    masm.movsd(Operand(esp, 0), ReturnFloatReg);
    masm.freeStack(sizeof(double));
}

Example #2

File: CodeGenerator-x86.cpp Project: nikhilgupta23/gecko-dev

void
CodeGeneratorX86::visitAsmJSCall(LAsmJSCall* ins)
{
    MAsmJSCall* mir = ins->mir();

    emitAsmJSCall(ins);

    if (IsFloatingPointType(mir->type()) && mir->callee().which() == MAsmJSCall::Callee::Builtin) {
        if (mir->type() == MIRType_Float32) {
            masm.reserveStack(sizeof(float));
            Operand op(esp, 0);
            masm.fstp32(op);
            masm.loadFloat32(op, ReturnFloat32Reg);
            masm.freeStack(sizeof(float));
        } else {
            MOZ_ASSERT(mir->type() == MIRType_Double);
            masm.reserveStack(sizeof(double));
            Operand op(esp, 0);
            masm.fstp(op);
            masm.loadDouble(op, ReturnDoubleReg);
            masm.freeStack(sizeof(double));
        }
    }
}