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support allocating more registers for aarch64 JIT

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also some minor fixes for the x64 JIT as well
This commit is contained in:
RSDuck
2021-06-29 22:25:43 +02:00
parent dd53b01f76
commit aa430608e7
10 changed files with 112 additions and 64 deletions
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25
src/ARMJIT_x64/ARMJIT_Compiler.cpp
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@ -64,7 +64,7 @@ const BitSet32 CallerSavedPushRegs({R10, R11});
const BitSet32 CallerSavedPushRegs({R9, R10, R11});
#endif
void Compiler::PushRegs(bool saveHiRegs)
void Compiler::PushRegs(bool saveHiRegs, bool saveRegsToBeChanged, bool allowUnload)
{
BitSet32 loadedRegs(RegCache.LoadedRegs);
@ -83,17 +83,26 @@ void Compiler::PushRegs(bool saveHiRegs)
}
for (int reg : loadedRegs)
if (BitSet32(1 << RegCache.Mapping[reg]) & ABI_ALL_CALLER_SAVED)
SaveReg(reg, RegCache.Mapping[reg]);
{
if (CallerSavedPushRegs[RegCache.Mapping[reg]]
&& (saveRegsToBeChanged || !((1<<reg) & CurInstr.Info.DstRegs && !((1<<reg) & CurInstr.Info.SrcRegs))))
{
if ((Thumb || CurInstr.Cond() == 0xE) && !((1 << reg) & (CurInstr.Info.DstRegs|CurInstr.Info.SrcRegs)) && allowUnload)
RegCache.UnloadRegister(reg);
else
SaveReg(reg, RegCache.Mapping[reg]);
}
}
}
void Compiler::PopRegs(bool saveHiRegs)
void Compiler::PopRegs(bool saveHiRegs, bool saveRegsToBeChanged)
{
BitSet32 loadedRegs(RegCache.LoadedRegs);
for (int reg : loadedRegs)
{
if ((saveHiRegs && reg >= 8 && reg < 15)
|| BitSet32(1 << RegCache.Mapping[reg]) & ABI_ALL_CALLER_SAVED)
|| (CallerSavedPushRegs[RegCache.Mapping[reg]]
&& (saveRegsToBeChanged || !((1<<reg) & CurInstr.Info.DstRegs && !((1<<reg) & CurInstr.Info.SrcRegs)))))
{
LoadReg(reg, RegCache.Mapping[reg]);
}
@ -205,14 +214,14 @@ void Compiler::A_Comp_MSR()
AND(32, R(RSCRATCH2), val);
OR(32, R(RCPSR), R(RSCRATCH2));
PushRegs(true);
PushRegs(true, true);
MOV(32, R(ABI_PARAM3), R(RCPSR));
MOV(32, R(ABI_PARAM2), R(RSCRATCH3));
MOV(64, R(ABI_PARAM1), R(RCPU));
CALL((void*)&UpdateModeTrampoline);
PopRegs(true);
PopRegs(true, true);
}
}
}
@ -659,7 +668,7 @@ void Compiler::Comp_SpecialBranchBehaviour(bool taken)
}
}
JitBlockEntry Compiler::CompileBlock(ARM* cpu, bool thumb, FetchedInstr instrs[], int instrsCount)
JitBlockEntry Compiler::CompileBlock(ARM* cpu, bool thumb, FetchedInstr instrs[], int instrsCount, bool hasMemoryInstr)
{
if (NearSize - (GetCodePtr() - NearStart) < 1024 * 32) // guess...
{