frederik
/
oscar64
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix volatile code movement

This commit is contained in:
drmortalwombat 2023-03-14 20:32:32 +01:00
parent 11c624fb4a
commit f590284ae2
1 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
oscar64/NativeCodeGenerator.cpp
View File

@ -19842,6 +19842,9 @@ bool NativeCodeBasicBlock::CheckSingleUseGlobalLoad(const NativeCodeBasicBlock*
{
NativeCodeInstruction& ins(mIns[at]);
if (ains.mFlags & ins.mFlags & NCIF_VOLATILE)
return false;
if (ins.mMode == ASMIM_ZERO_PAGE && ins.mAddress == reg)
{
if (ins.UsesAddress())
@ -31039,7 +31042,7 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
#if 1
if (mIns[i].mType == ASMIT_LDY)
{
if (!mIns[i + 1].RequiresYReg() && !mIns[i + 1].ChangesYReg() && !(mIns[i + 1].mLive & LIVE_CPU_REG_Z))
if (!mIns[i + 1].RequiresYReg() && !mIns[i + 1].ChangesYReg() && !(mIns[i + 1].mLive & LIVE_CPU_REG_Z) && !(mIns[i].mFlags & mIns[i + 1].mFlags & NCIF_VOLATILE))
{
if (mIns[i].mMode != ASMIM_ABSOLUTE_X || !mIns[i + 1].ChangesXReg())
{
@ -31061,7 +31064,7 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
}
else if (mIns[i].mType == ASMIT_LDX)
{
if (!mIns[i + 1].RequiresXReg() && !mIns[i + 1].ChangesXReg() && !(mIns[i + 1].mLive & LIVE_CPU_REG_Z))
if (!mIns[i + 1].RequiresXReg() && !mIns[i + 1].ChangesXReg() && !(mIns[i + 1].mLive & LIVE_CPU_REG_Z) && !(mIns[i].mFlags & mIns[i + 1].mFlags & NCIF_VOLATILE))
{
if (mIns[i].mMode != ASMIM_ABSOLUTE_Y || !mIns[i + 1].ChangesYReg())
{
@ -37785,7 +37788,7 @@ void NativeCodeProcedure::RebuildEntry(void)
void NativeCodeProcedure::Optimize(void)
{
CheckFunc = !strcmp(mInterProc->mIdent->mString, "pad_poll");
CheckFunc = !strcmp(mInterProc->mIdent->mString, "check");
#if 1
int step = 0;
@ -38049,6 +38052,7 @@ void NativeCodeProcedure::Optimize(void)
}
#endif
#if _DEBUG
ResetVisited();
mEntryBlock->CheckBlocks(true);
@ -38415,6 +38419,7 @@ void NativeCodeProcedure::Optimize(void)
else
cnt++;
} while (changed);
#if 1