C++ (Cpp) MDefinition::constantVp Examples

Example #1

void
LIRGeneratorMIPS::visitAsmJSStoreHeap(MAsmJSStoreHeap *ins)
{
    MDefinition *ptr = ins->ptr();
    MOZ_ASSERT(ptr->type() == MIRType_Int32);
    LAllocation ptrAlloc;

    if (ptr->isConstantValue() && !ins->needsBoundsCheck()) {
        MOZ_ASSERT(ptr->constantValue().toInt32() >= 0);
        ptrAlloc = LAllocation(ptr->constantVp());
    } else
        ptrAlloc = useRegisterAtStart(ptr);

    add(new(alloc()) LAsmJSStoreHeap(ptrAlloc, useRegisterAtStart(ins->value())), ins);
}

Example #2

void
LIRGeneratorMIPS::visitAsmJSLoadHeap(MAsmJSLoadHeap *ins)
{
    MDefinition *ptr = ins->ptr();
    MOZ_ASSERT(ptr->type() == MIRType_Int32);
    LAllocation ptrAlloc;

    // For MIPS it is best to keep the 'ptr' in a register if a bounds check
    // is needed.
    if (ptr->isConstantValue() && !ins->needsBoundsCheck()) {
        // A bounds check is only skipped for a positive index.
        MOZ_ASSERT(ptr->constantValue().toInt32() >= 0);
        ptrAlloc = LAllocation(ptr->constantVp());
    } else
        ptrAlloc = useRegisterAtStart(ptr);

    define(new(alloc()) LAsmJSLoadHeap(ptrAlloc), ins);
}