C++ (Cpp) GenTree::AsLngCon示例

//------------------------------------------------------------------------
// DecomposeCnsLng: Decompose GT_CNS_LNG.
//
// Arguments:
//    use - the LIR::Use object for the def that needs to be decomposed.
//
// Return Value:
//    The next node to process.
//
GenTree* DecomposeLongs::DecomposeCnsLng(LIR::Use& use)
{
    assert(use.IsInitialized());
    assert(use.Def()->OperGet() == GT_CNS_LNG);

    GenTree* tree  = use.Def();
    INT32    hiVal = tree->AsLngCon()->HiVal();

    GenTree* loResult = tree;
    loResult->ChangeOperConst(GT_CNS_INT);
    loResult->gtType = TYP_INT;

    GenTree* hiResult = new (m_compiler, GT_CNS_INT) GenTreeIntCon(TYP_INT, hiVal);
    Range().InsertAfter(loResult, hiResult);

    return FinalizeDecomposition(use, loResult, hiResult);
}

示例#2

显示文件

文件： decomposelongs.cpp 项目： AsaLau/coreclr

//------------------------------------------------------------------------
// DecomposeCnsLng: Decompose GT_CNS_LNG.
//
// Arguments:
//    ppTree - the tree to decompose
//    data - tree walk context
//
// Return Value:
//    None.
//
void DecomposeLongs::DecomposeCnsLng(GenTree** ppTree, Compiler::fgWalkData* data)
{
    assert(ppTree != nullptr);
    assert(*ppTree != nullptr);
    assert(data != nullptr);
    assert((*ppTree)->OperGet() == GT_CNS_LNG);

    GenTree* tree = *ppTree;
    INT32 hiVal = tree->AsLngCon()->HiVal();

    GenTree* loResult = tree;
    loResult->ChangeOperConst(GT_CNS_INT);
    loResult->gtType = TYP_INT;

    GenTree* hiResult = new (m_compiler, GT_CNS_INT) GenTreeIntCon(TYP_INT, hiVal);

    FinalizeDecomposition(ppTree, data, loResult, hiResult);
}