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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XX XX
XX DecomposeLongs XX
XX XX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
*/
#ifndef _DECOMPOSELONGS_H_
#define _DECOMPOSELONGS_H_
#include "compiler.h"
class DecomposeLongs
{
public:
DecomposeLongs(Compiler* compiler) : m_compiler(compiler)
{
}
void PrepareForDecomposition();
void DecomposeBlock(BasicBlock* block);
static void DecomposeRange(Compiler* compiler, unsigned blockWeight, LIR::Range& range);
private:
inline LIR::Range& Range() const
{
return *m_range;
}
// Driver functions
void DecomposeRangeHelper();
GenTree* DecomposeNode(GenTree* tree);
// Per-node type decompose cases
GenTree* DecomposeLclVar(LIR::Use& use);
GenTree* DecomposeLclFld(LIR::Use& use);
GenTree* DecomposeStoreLclVar(LIR::Use& use);
GenTree* DecomposeStoreLclFld(LIR::Use& use);
GenTree* DecomposeCast(LIR::Use& use);
GenTree* DecomposeCnsLng(LIR::Use& use);
GenTree* DecomposeCall(LIR::Use& use);
GenTree* DecomposeInd(LIR::Use& use);
GenTree* DecomposeStoreInd(LIR::Use& use);
GenTree* DecomposeNot(LIR::Use& use);
GenTree* DecomposeNeg(LIR::Use& use);
GenTree* DecomposeArith(LIR::Use& use);
GenTree* DecomposeShift(LIR::Use& use);
GenTree* DecomposeRotate(LIR::Use& use);
GenTree* DecomposeMul(LIR::Use& use);
GenTree* DecomposeUMod(LIR::Use& use);
// Helper functions
GenTree* FinalizeDecomposition(LIR::Use& use, GenTree* loResult, GenTree* hiResult, GenTree* insertResultAfter);
GenTree* RepresentOpAsLocalVar(GenTree* op, GenTree* user, GenTree** edge);
GenTree* StoreNodeToVar(LIR::Use& use);
static genTreeOps GetHiOper(genTreeOps oper);
static genTreeOps GetLoOper(genTreeOps oper);
// Data
Compiler* m_compiler;
unsigned m_blockWeight;
LIR::Range* m_range;
};
#endif // _DECOMPOSELONGS_H_
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