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PPCRec: New compare and cond jump instrs, update RA

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Storing the condition result in a register instead of imitating PPC CR lets us simplify the backend a lot. Only implemented as PoC for BDZ/BDNZ so far.
This commit is contained in:
Exzap 2022-12-17 21:06:27 +01:00
parent d0590ef1f5
commit a51a8bb7d5
19 changed files with 609 additions and 323 deletions
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56
src/Cafe/HW/Espresso/Recompiler/IML/IMLDebug.cpp
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@ -121,6 +121,20 @@ std::string IMLDebug_GetSegmentName(ppcImlGenContext_t* ctx, IMLSegment* seg)
return "<SegmentNotInCtx>";
}
std::string IMLDebug_GetConditionName(IMLCondition cond)
{
switch (cond)
{
case IMLCondition::EQ:
return "EQ";
case IMLCondition::NEQ:
return "NEQ";
default:
cemu_assert_unimplemented();
}
return "ukn";
}
void IMLDebug_DumpSegment(ppcImlGenContext_t* ctx, IMLSegment* imlSegment, bool printLivenessRangeInfo)
{
StringBuf strOutput(1024);
@ -143,9 +157,12 @@ void IMLDebug_DumpSegment(ppcImlGenContext_t* ctx, IMLSegment* imlSegment, bool
if (printLivenessRangeInfo)
{
strOutput.reset();
IMLDebug_PrintLivenessRangeInfo(strOutput, imlSegment, RA_INTER_RANGE_START);
debug_printf("%s\n", strOutput.c_str());
}
//debug_printf("\n");
strOutput.reset();
sint32 lineOffsetParameters = 18;
@ -207,6 +224,37 @@ void IMLDebug_DumpSegment(ppcImlGenContext_t* ctx, IMLSegment* imlSegment, bool
strOutput.addFmt(" -> CR{}", inst.crRegister);
}
}
else if (inst.type == PPCREC_IML_TYPE_COMPARE)
{
strOutput.add("CMP ");
while ((sint32)strOutput.getLen() < lineOffsetParameters)
strOutput.add(" ");
IMLDebug_AppendRegisterParam(strOutput, inst.op_compare.registerOperandA);
IMLDebug_AppendRegisterParam(strOutput, inst.op_compare.registerOperandB);
strOutput.addFmt(", {}", IMLDebug_GetConditionName(inst.op_compare.cond));
strOutput.add(" -> ");
IMLDebug_AppendRegisterParam(strOutput, inst.op_compare.registerResult, true);
}
else if (inst.type == PPCREC_IML_TYPE_COMPARE_S32)
{
strOutput.add("CMP ");
while ((sint32)strOutput.getLen() < lineOffsetParameters)
strOutput.add(" ");
IMLDebug_AppendRegisterParam(strOutput, inst.op_compare_s32.registerOperandA);
strOutput.addFmt("{}", inst.op_compare_s32.immS32);
strOutput.addFmt(", {}", IMLDebug_GetConditionName(inst.op_compare_s32.cond));
strOutput.add(" -> ");
IMLDebug_AppendRegisterParam(strOutput, inst.op_compare_s32.registerResult, true);
}
else if (inst.type == PPCREC_IML_TYPE_CONDITIONAL_JUMP)
{
strOutput.add("CJUMP2 ");
while ((sint32)strOutput.getLen() < lineOffsetParameters)
strOutput.add(" ");
IMLDebug_AppendRegisterParam(strOutput, inst.op_conditionalJump2.registerBool, true);
if(!inst.op_conditionalJump2.mustBeTrue)
strOutput.add("(inverted)");
}
else if (inst.type == PPCREC_IML_TYPE_R_R_S32)
{
strOutput.addFmt("{}", IMLDebug_GetOpcodeName(&inst));
@ -369,7 +417,7 @@ void IMLDebug_DumpSegment(ppcImlGenContext_t* ctx, IMLSegment* imlSegment, bool
else
strOutput.add("U");
strOutput.addFmt("{} [t{}+{}]", inst.op_storeLoad.copyWidth / 8, inst.op_storeLoad.registerMem, inst.op_storeLoad.immS32);
strOutput.addFmt("= fpr_t{} mode {}\n", inst.op_storeLoad.registerData, inst.op_storeLoad.mode);
strOutput.addFmt(" = fpr_t{} mode {}", inst.op_storeLoad.registerData, inst.op_storeLoad.mode);
}
else if (inst.type == PPCREC_IML_TYPE_FPR_R_R)
{
@ -388,7 +436,7 @@ void IMLDebug_DumpSegment(ppcImlGenContext_t* ctx, IMLSegment* imlSegment, bool
}
else if (inst.type == PPCREC_IML_TYPE_CJUMP_CYCLE_CHECK)
{
strOutput.addFmt("CYCLE_CHECK\n");
strOutput.addFmt("CYCLE_CHECK");
}
else if (inst.type == PPCREC_IML_TYPE_CONDITIONAL_R_S32)
{
@ -460,11 +508,11 @@ void IMLDebug_DumpSegment(ppcImlGenContext_t* ctx, IMLSegment* imlSegment, bool
debug_printf("\n");
}
void IMLDebug_Dump(ppcImlGenContext_t* ppcImlGenContext)
void IMLDebug_Dump(ppcImlGenContext_t* ppcImlGenContext, bool printLivenessRangeInfo)
{
for (size_t i = 0; i < ppcImlGenContext->segmentList2.size(); i++)
{
IMLDebug_DumpSegment(ppcImlGenContext, ppcImlGenContext->segmentList2[i], false);
IMLDebug_DumpSegment(ppcImlGenContext, ppcImlGenContext->segmentList2[i], printLivenessRangeInfo);
debug_printf("\n");
}
}