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shader_recompiler: Implement S_FF1_I32_B64

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This commit is contained in:
squidbus 2024-12-26 18:11:09 -08:00
parent eeb732572a
commit 34fccbcc50
7 changed files with 26 additions and 3 deletions
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1
src/shader_recompiler/backend/spirv/emit_spirv_instructions.h
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@ -309,6 +309,7 @@ Id EmitBitwiseNot32(EmitContext& ctx, Id value);
Id EmitFindSMsb32(EmitContext& ctx, Id value);
Id EmitFindUMsb32(EmitContext& ctx, Id value);
Id EmitFindILsb32(EmitContext& ctx, Id value);
Id EmitFindILsb64(EmitContext& ctx, Id value);
Id EmitSMin32(EmitContext& ctx, Id a, Id b);
Id EmitUMin32(EmitContext& ctx, Id a, Id b);
Id EmitSMax32(EmitContext& ctx, Id a, Id b);

4
src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
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@ -221,6 +221,10 @@ Id EmitFindILsb32(EmitContext& ctx, Id value) {
return ctx.OpFindILsb(ctx.U32[1], value);
}
Id EmitFindILsb64(EmitContext& ctx, Id value) {
return ctx.OpFindILsb(ctx.U64, value);
}
Id EmitSMin32(EmitContext& ctx, Id a, Id b) {
return ctx.OpSMin(ctx.U32[1], a, b);
}

9
src/shader_recompiler/frontend/translate/scalar_alu.cpp
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@ -104,6 +104,8 @@ void Translator::EmitScalarAlu(const GcnInst& inst) {
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:
@ -599,6 +601,13 @@ void Translator::S_FF1_I32_B32(const GcnInst& inst) {
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.Imm64(s64(-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

1
src/shader_recompiler/frontend/translate/translate.h
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@ -113,6 +113,7 @@ public:
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);

9
src/shader_recompiler/ir/ir_emitter.cpp
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@ -1296,8 +1296,15 @@ U32 IREmitter::FindUMsb(const U32& value) {
return Inst<U32>(Opcode::FindUMsb32, value);
}
U32 IREmitter::FindILsb(const U32& value) {
U32 IREmitter::FindILsb(const U32U64& value) {
switch (value.Type()) {
case Type::U32:
return Inst<U32>(Opcode::FindILsb32, value);
case Type::U64:
return Inst<U32>(Opcode::FindILsb64, value);
default:
ThrowInvalidType(value.Type());
}
}
U32 IREmitter::SMin(const U32& a, const U32& b) {

2
src/shader_recompiler/ir/ir_emitter.h
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@ -234,7 +234,7 @@ public:
[[nodiscard]] U32 FindSMsb(const U32& value);
[[nodiscard]] U32 FindUMsb(const U32& value);
[[nodiscard]] U32 FindILsb(const U32& value);
[[nodiscard]] U32 FindILsb(const U32U64& value);
[[nodiscard]] U32 SMin(const U32& a, const U32& b);
[[nodiscard]] U32 UMin(const U32& a, const U32& b);
[[nodiscard]] U32 IMin(const U32& a, const U32& b, bool is_signed);

1
src/shader_recompiler/ir/opcodes.inc
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@ -290,6 +290,7 @@ OPCODE(BitwiseNot32, U32, U32,
OPCODE(FindSMsb32, U32, U32, )
OPCODE(FindUMsb32, U32, U32, )
OPCODE(FindILsb32, U32, U32, )
OPCODE(FindILsb64, U32, U64, )
OPCODE(SMin32, U32, U32, U32, )
OPCODE(UMin32, U32, U32, U32, )
OPCODE(SMax32, U32, U32, U32, )