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Byte level dataflow analysis of native code

This commit is contained in:
drmortalwombat 2021-09-09 23:13:03 +02:00
parent f08d847a64
commit fd1626bf16
2 changed files with 1188 additions and 77 deletions
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1228
oscar64/NativeCodeGenerator.cpp
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File diff suppressed because it is too large Load Diff

37
oscar64/NativeCodeGenerator.h
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@ -6,6 +6,24 @@
class NativeCodeProcedure;
class NativeCodeBasicBlock;
struct NativeRegisterData
{
bool mImmediate, mZeroPage;
int mValue;
NativeRegisterData(void);
void Reset(void);
};
struct NativeRegisterDataSet
{
NativeRegisterData mRegs[261];
void Reset(void);
void ResetZeroPage(int addr);
};
class NativeCodeInstruction
{
public:
@ -20,6 +38,9 @@ public:
const char * mRuntime;
void Assemble(NativeCodeBasicBlock* block);
void FilterRegUsage(NumberSet& requiredTemps, NumberSet& providedTemps);
bool IsUsedResultInstructions(NumberSet& requiredTemps);
bool ValueForwarding(NativeRegisterDataSet& data);
};
class NativeCodeBasicBlock
@ -38,7 +59,7 @@ public:
GrowingArray<ByteCodeRelocation> mRelocations;
int mOffset, mSize;
bool mPlaced, mCopied, mKnownShortBranch, mBypassed, mAssembled, mNoFrame;
bool mPlaced, mCopied, mKnownShortBranch, mBypassed, mAssembled, mNoFrame, mVisited;
int PutBranch(NativeCodeProcedure* proc, AsmInsType code, int offset);
int PutJump(NativeCodeProcedure* proc, int offset);
@ -63,11 +84,20 @@ public:
void LoadStoreValue(InterCodeProcedure* proc, const InterInstruction& rins, const InterInstruction& wins);
void BinaryOperator(InterCodeProcedure* proc, const InterInstruction& ins, const InterInstruction* sins1, const InterInstruction* sins0);
void UnaryOperator(InterCodeProcedure* proc, const InterInstruction& ins);
void RelationalOperator(InterCodeProcedure* proc, const InterInstruction& ins, NativeCodeBasicBlock* trueJump, NativeCodeBasicBlock * falseJump);
void RelationalOperator(InterCodeProcedure* proc, const InterInstruction& ins, NativeCodeProcedure * nproc, NativeCodeBasicBlock* trueJump, NativeCodeBasicBlock * falseJump);
void LoadEffectiveAddress(InterCodeProcedure* proc, const InterInstruction& ins);
void NumericConversion(InterCodeProcedure* proc, const InterInstruction& ins);
bool CheckPredAccuStore(int reg);
NumberSet mLocalRequiredRegs, mLocalProvidedRegs;
NumberSet mEntryRequiredRegs, mEntryProvidedRegs;
NumberSet mExitRequiredRegs, mExitProvidedRegs;
void BuildLocalRegSets(void);
void BuildGlobalProvidedRegSet(NumberSet fromProvidedTemps);
bool BuildGlobalRequiredRegSet(NumberSet& fromRequiredTemps);
bool RemoveUnusedResultInstructions(void);
};
class NativeCodeProcedure
@ -84,6 +114,7 @@ class NativeCodeProcedure
int mTempBlocks;
GrowingArray<ByteCodeRelocation> mRelocations;
GrowingArray < NativeCodeBasicBlock*> mBlocks;
void Compile( ByteCodeGenerator * generator, InterCodeProcedure* proc);
NativeCodeBasicBlock* CompileBlock(InterCodeProcedure* iproc, InterCodeBasicBlock* block);
@ -92,6 +123,8 @@ class NativeCodeProcedure
void CompileInterBlock(InterCodeProcedure* iproc, InterCodeBasicBlock* iblock, NativeCodeBasicBlock*block);
void BuildDataFlowSets(void);
void ResetVisited(void);
};