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shader_recompiler: Implement S_BCNT1_I32_B64 and S_FF1_I32_B64 (#1889)

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* shader_recompiler: Implement S_BCNT1_I32_B64

* shader_recompiler: Implement S_FF1_I32_B64

* shader_recompiler: Implement IEqual for 64-bit.

* shader_recompiler: Fix immediate type in S_FF1_I32_B32
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squidbus 2024-12-27 06:46:07 -08:00 • committed by GitHub
parent 1c5947d93b
commit b1f74660df
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GPG key ID: B5690EEEBB952194
9 changed files with 68 additions and 12 deletions
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17
src/shader_recompiler/frontend/translate/scalar_alu.cpp
View file

@ -100,8 +100,12 @@ void Translator::EmitScalarAlu(const GcnInst& inst) {
return S_BREV_B32(inst);
case Opcode::S_BCNT1_I32_B32:
return S_BCNT1_I32_B32(inst);
case Opcode::S_BCNT1_I32_B64:
return S_BCNT1_I32_B64(inst);
case Opcode::S_FF1_I32_B32:
return S_FF1_I32_B32(inst);
case Opcode::S_FF1_I32_B64:
return S_FF1_I32_B64(inst);
case Opcode::S_AND_SAVEEXEC_B64:
return S_SAVEEXEC_B64(NegateMode::None, false, inst);
case Opcode::S_ORN2_SAVEEXEC_B64:
@ -585,12 +589,25 @@ void Translator::S_BCNT1_I32_B32(const GcnInst& inst) {
ir.SetScc(ir.INotEqual(result, ir.Imm32(0)));
}
void Translator::S_BCNT1_I32_B64(const GcnInst& inst) {
const IR::U32 result = ir.BitCount(GetSrc64(inst.src[0]));
SetDst(inst.dst[0], result);
ir.SetScc(ir.INotEqual(result, ir.Imm32(0)));
}
void Translator::S_FF1_I32_B32(const GcnInst& inst) {
const IR::U32 src0{GetSrc(inst.src[0])};
const IR::U32 result{ir.Select(ir.IEqual(src0, ir.Imm32(0U)), ir.Imm32(-1), ir.FindILsb(src0))};
SetDst(inst.dst[0], result);
}
void Translator::S_FF1_I32_B64(const GcnInst& inst) {
const IR::U64 src0{GetSrc64(inst.src[0])};
const IR::U32 result{
ir.Select(ir.IEqual(src0, ir.Imm64(u64(0))), ir.Imm32(-1), ir.FindILsb(src0))};
SetDst(inst.dst[0], result);
}
void Translator::S_SAVEEXEC_B64(NegateMode negate, bool is_or, const GcnInst& inst) {
// This instruction normally operates on 64-bit data (EXEC, VCC, SGPRs)
// However here we flatten it to 1-bit EXEC and 1-bit VCC. For the destination

2
src/shader_recompiler/frontend/translate/translate.h
View file

@ -111,7 +111,9 @@ public:
void S_NOT_B64(const GcnInst& inst);
void S_BREV_B32(const GcnInst& inst);
void S_BCNT1_I32_B32(const GcnInst& inst);
void S_BCNT1_I32_B64(const GcnInst& inst);
void S_FF1_I32_B32(const GcnInst& inst);
void S_FF1_I32_B64(const GcnInst& inst);
void S_GETPC_B64(u32 pc, const GcnInst& inst);
void S_SAVEEXEC_B64(NegateMode negate, bool is_or, const GcnInst& inst);
void S_ABS_I32(const GcnInst& inst);