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integrate changes from ARM64 backend and more

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- better handle LDM/STM in reg alloc
- unify Halted and IRQ in anticipation for branch inlining
- literal optimisations can be disabled in gui
- jit blocks follow simple returns
- fix idle loop detection
- break jit blocks on IRQ (fixes saving in Pokemon White)
This commit is contained in:
RSDuck
2019-10-18 13:29:17 +02:00
parent aa23f21b8d
commit 81f38c14be
13 changed files with 179 additions and 48 deletions
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28
src/ARM_InstrInfo.cpp
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@ -365,6 +365,21 @@ Info Decode(bool thumb, u32 num, u32 instr)
if (res.Kind == ARMInstrInfo::tk_LDR_PCREL)
res.SpecialKind = special_LoadLiteral;
if (res.Kind == tk_LDMIA || res.Kind == tk_POP)
{
u32 set = (instr & 0xFF) & ~(res.DstRegs|res.SrcRegs);
res.NotStrictlyNeeded |= set;
res.DstRegs |= set;
}
if (res.Kind == tk_STMIA || res.Kind == tk_PUSH)
{
u32 set = (instr & 0xFF) & ~(res.DstRegs|res.SrcRegs);
if (res.Kind == tk_PUSH && instr & (1 << 8))
set |= (1 << 14);
res.NotStrictlyNeeded |= set;
res.SrcRegs |= set;
}
res.EndBlock |= res.Branches();
if (res.Kind == tk_BCOND)
@ -466,6 +481,19 @@ Info Decode(bool thumb, u32 num, u32 instr)
if ((data & A_LoadMem) && res.SrcRegs == (1 << 15))
res.SpecialKind = special_LoadLiteral;
if (res.Kind == ak_LDM)
{
u16 set = (instr & 0xFFFF) & ~(res.SrcRegs|res.DstRegs|(1<<15));
res.DstRegs |= set;
res.NotStrictlyNeeded |= set;
}
if (res.Kind == ak_STM)
{
u16 set = (instr & 0xFFFF) & ~(res.SrcRegs|res.DstRegs|(1<<15));
res.SrcRegs |= set;
res.NotStrictlyNeeded |= set;
}
if ((instr >> 28) < 0xE)
{