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Optimize bytecode generator

This commit is contained in:
drmortalwombat 2021-11-22 19:49:02 +01:00
parent 6007553d03
commit 12aa385e38
3 changed files with 46 additions and 1 deletions
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5
include/string.c
View File

@ -41,6 +41,8 @@ char * strcpy(char * dst, const char * src)
}
#endif
#pragma native(strcpy)
#if 1
int strcmp(const char * ptr1, const char * ptr2)
@ -97,6 +99,7 @@ int strcmp(const char * ptr1, const char * ptr2)
}
#endif
#pragma native(strcmp)
int strlen(const char * str)
{
@ -212,6 +215,8 @@ void * memcpy(void * dst, const void * src, int size)
#endif
}
#pragma native(memcpy)
void * memmove(void * dst, const void * src, int size)
{
char * d = dst, * s = src;

40
oscar64/ByteCodeGenerator.cpp
View File

@ -4952,6 +4952,20 @@ bool ByteCodeBasicBlock::PeepHoleOptimizer(int phase)
mBranch = TransposeBranchCondition(mBranch);
progress = true;
}
else if (
i + 3 == mIns.Size() && mFalseJump &&
mIns[i + 0].mCode == BC_STORE_REG_16 &&
mIns[i + 1].mCode == BC_LOAD_REG_16 &&
mIns[i + 2].mCode == BC_BINOP_CMPUR_16 && mIns[i + 0].mRegister == mIns[i + 2].mRegister && !(mExitLive & LIVE_ACCU) && mIns[i + 2].mRegisterFinal
)
{
mIns[i + 0].mCode = BC_NOP;
mIns[i + 1].mCode = BC_NOP;
mIns[i + 2].mRegister = mIns[i + 1].mRegister;
mIns[i + 2].mRegisterFinal = mIns[i + 1].mRegisterFinal;
mBranch = TransposeBranchCondition(mBranch);
progress = true;
}
#endif
@ -5187,6 +5201,16 @@ bool ByteCodeBasicBlock::PeepHoleOptimizer(int phase)
mIns[i + 1].mCode = BC_NOP;
progress = true;
}
else if (
mIns[i + 0].mCode == BC_LOAD_REG_8 && !(mIns[i + 1].mLive & LIVE_ACCU) &&
(mIns[i + 1].mCode == BC_STORE_ABS_8 || mIns[i + 1].mCode == BC_STORE_LOCAL_8 || mIns[i + 1].mCode == BC_STORE_ADDR_8 || mIns[i + 1].mCode == BC_STORE_FRAME_8) &&
mIns[i + 1].mRegister == BC_REG_ACCU)
{
mIns[i + 0].mCode = BC_NOP;
mIns[i + 1].mRegister = mIns[i + 0].mRegister;
mIns[i + 1].mRegisterFinal = mIns[i + 0].mRegisterFinal;
progress = true;
}
#if 1
else if (
@ -5603,6 +5627,22 @@ void ByteCodeBasicBlock::CalculateOffset(int& total)
mTrueJump->CalculateOffset(total);
}
}
#if 1
else if (!mTrueJump->mFalseJump && !mFalseJump->mFalseJump && mTrueJump->mTrueJump == mFalseJump->mTrueJump &&
mTrueJump->mCode.Size() < 120 && mFalseJump->mCode.Size() < 120 && mTrueJump->mTrueJump->mOffset > mOffset)
{
// Small diamond so place true then false directly behind each other
// with short branches
mSize = mCode.Size() + 2;
mFalseJump->mOffset = next + 2;
mFalseJump->mSize = mFalseJump->mCode.Size() + 2;
total = mFalseJump->mOffset + mFalseJump->mSize;
mTrueJump->CalculateOffset(total);
}
#endif
else
{
// neither falseJump nor trueJump have been placed

2
oscar64/GlobalAnalyzer.cpp
View File

@ -119,7 +119,7 @@ void GlobalAnalyzer::AutoInline(void)
for (int i = 0; i < mFunctions.Size(); i++)
{
Declaration* f = mFunctions[i];
if (!(f->mFlags & DTF_INLINE) && !(f->mBase->mFlags & DTF_VARIADIC) && !(f->mFlags & DTF_FUNC_VARIABLE) && !(f->mFlags & DTF_INTRINSIC) && f->mCalled.Size() == 0)
if (!(f->mFlags & DTF_INLINE) && !(f->mBase->mFlags & DTF_VARIADIC) && !(f->mFlags & DTF_FUNC_VARIABLE) && f->mCalled.Size() == 0)
{
int nparams = 0;
Declaration* dec = f->mBase->mParams;