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PPCRec: Unify BCCTR and BCLR code

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Instead of having fixed macros for BCCTR/BCCTRL/BCLR/BCLRL we now have only one single macro instruction that takes the jump destination as a register parameter.
This also allows us to reuse an already loaded LR register (by something like MTLR) instead of loading it again from memory.

As a necessary requirement for this: The register allocator now has support for read operations in suffix instructions
This commit is contained in:
Exzap 2022-12-12 14:13:46 +01:00
parent f2a07ade4c
commit bb6b18d78f
6 changed files with 95 additions and 271 deletions
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11
src/Cafe/HW/Espresso/Recompiler/IML/IMLRegisterAllocator.cpp
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@ -1033,8 +1033,8 @@ void PPCRecRA_calculateSegmentMinMaxRanges(ppcImlGenContext_t* ppcImlGenContext,
while (index < imlSegment->imlList.size())
{
// end loop at suffix instruction
if (imlSegment->imlList[index].IsSuffixInstruction())
break;
//if (imlSegment->imlList[index].IsSuffixInstruction())
// break;
// get accessed GPRs
imlSegment->imlList[index].CheckRegisterUsage(&gprTracking);
for (sint32 t = 0; t < 4; t++)
@ -1125,9 +1125,10 @@ void PPCRecRA_createSegmentLivenessRanges(ppcImlGenContext_t* ppcImlGenContext,
IMLUsedRegisters gprTracking;
while (index < imlSegment->imlList.size())
{
// end loop at suffix instruction
if (imlSegment->imlList[index].IsSuffixInstruction())
break;
// we parse suffix instructions too for any potential input registers (writes not allowed), but note that any spills/stores need to happen before the suffix instruction
//// end loop at suffix instruction
//if (imlSegment->imlList[index].IsSuffixInstruction())
// break;
// get accessed GPRs
imlSegment->imlList[index].CheckRegisterUsage(&gprTracking);
// handle accessed GPR