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PPCRec: Reworked IML builder to work with basic-blocks

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Intermediate commit while I'm still fixing things but I didn't want to pile on too many changes in a single commit.
New:
Reworked PPC->IML converter to first create a graph of basic blocks and then turn those into IML segment(s). This was mainly done to decouple IML design from having PPC specific knowledge like branch target addresses. The previous design also didn't allow to preserve cycle counting properly in all cases since it was based on IML instruction counting.
The new solution supports functions with non-continuous body. A pretty common example for this is when functions end with a trailing B instruction to some other place.

Current limitations:
- BL inlining not implemented
- MFTB not implemented
- BCCTR and BCLR are only partially implemented

Undo vcpkg change
This commit is contained in:
Exzap 2022-12-12 08:50:29 +01:00
parent 0622631868
commit e1e710e3f5
18 changed files with 1554 additions and 689 deletions
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7
src/Cafe/HW/Espresso/Recompiler/PPCRecompilerIml.h
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@ -1,7 +1,12 @@
#define PPCREC_CR_REG_TEMP 8 // there are only 8 cr registers (0-7) we use the 8th as temporary cr register that is never stored (BDNZ instruction for example)
bool PPCRecompiler_generateIntermediateCode(ppcImlGenContext_t& ppcImlGenContext, PPCRecFunction_t* PPCRecFunction, std::set<uint32>& entryAddresses);
bool PPCRecompiler_generateIntermediateCode(ppcImlGenContext_t& ppcImlGenContext, PPCRecFunction_t* PPCRecFunction, std::set<uint32>& entryAddresses, class PPCFunctionBoundaryTracker& boundaryTracker);
IMLSegment* PPCIMLGen_CreateSplitSegmentAtEnd(ppcImlGenContext_t& ppcImlGenContext, PPCBasicBlockInfo& basicBlockInfo);
IMLSegment* PPCIMLGen_CreateNewSegmentAsBranchTarget(ppcImlGenContext_t& ppcImlGenContext, PPCBasicBlockInfo& basicBlockInfo);
void PPCIMLGen_AssertIfNotLastSegmentInstruction(ppcImlGenContext_t& ppcImlGenContext);
IMLInstruction* PPCRecompilerImlGen_generateNewEmptyInstruction(ppcImlGenContext_t* ppcImlGenContext);
void PPCRecompiler_pushBackIMLInstructions(IMLSegment* imlSegment, sint32 index, sint32 shiftBackCount);