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shader: Implement IMNMX

This commit is contained in:
ameerj 2021-02-28 23:33:53 -05:00
parent 08a9e95905
commit 20390c0548
8 changed files with 105 additions and 12 deletions
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1
src/shader_recompiler/CMakeLists.txt
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@ -71,6 +71,7 @@ add_library(shader_recompiler STATIC
frontend/maxwell/translate/impl/impl.cpp
frontend/maxwell/translate/impl/impl.h
frontend/maxwell/translate/impl/integer_add.cpp
frontend/maxwell/translate/impl/integer_minimum_maximum.cpp
frontend/maxwell/translate/impl/integer_popcount.cpp
frontend/maxwell/translate/impl/integer_scaled_add.cpp
frontend/maxwell/translate/impl/integer_set_predicate.cpp

4
src/shader_recompiler/backend/spirv/emit_spirv.h
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@ -230,6 +230,10 @@ Id EmitBitFieldUExtract(EmitContext& ctx, Id base, Id offset, Id count);
Id EmitBitReverse32(EmitContext& ctx, Id value);
Id EmitBitCount32(EmitContext& ctx, Id value);
Id EmitBitwiseNot32(EmitContext& ctx, Id a);
Id EmitSMin32(EmitContext& ctx, Id a, Id b);
Id EmitUMin32(EmitContext& ctx, Id a, Id b);
Id EmitSMax32(EmitContext& ctx, Id a, Id b);
Id EmitUMax32(EmitContext& ctx, Id a, Id b);
Id EmitSLessThan(EmitContext& ctx, Id lhs, Id rhs);
Id EmitULessThan(EmitContext& ctx, Id lhs, Id rhs);
Id EmitIEqual(EmitContext& ctx, Id lhs, Id rhs);

16
src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
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@ -114,6 +114,22 @@ Id EmitBitwiseNot32(EmitContext& ctx, Id a) {
return ctx.OpNot(ctx.U32[1], a);
}
Id EmitSMin32(EmitContext& ctx, Id a, Id b) {
return ctx.OpSMin(ctx.U32[1], a, b);
}
Id EmitUMin32(EmitContext& ctx, Id a, Id b) {
return ctx.OpUMin(ctx.U32[1], a, b);
}
Id EmitSMax32(EmitContext& ctx, Id a, Id b) {
return ctx.OpSMax(ctx.U32[1], a, b);
}
Id EmitUMax32(EmitContext& ctx, Id a, Id b) {
return ctx.OpUMax(ctx.U32[1], a, b);
}
Id EmitSLessThan(EmitContext& ctx, Id lhs, Id rhs) {
return ctx.OpSLessThan(ctx.U1, lhs, rhs);
}

16
src/shader_recompiler/frontend/ir/ir_emitter.cpp
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@ -816,6 +816,22 @@ U32 IREmitter::BitwiseNot(const U32& a) {
return Inst<U32>(Opcode::BitwiseNot32, a);
}
U32 IREmitter::SMin(const U32& a, const U32& b) {
return Inst<U32>(Opcode::SMin32, a, b);
}
U32 IREmitter::UMin(const U32& a, const U32& b) {
return Inst<U32>(Opcode::UMin32, a, b);
}
U32 IREmitter::SMax(const U32& a, const U32& b) {
return Inst<U32>(Opcode::SMax32, a, b);
}
U32 IREmitter::UMax(const U32& a, const U32& b) {
return Inst<U32>(Opcode::UMax32, a, b);
}
U1 IREmitter::ILessThan(const U32& lhs, const U32& rhs, bool is_signed) {
return Inst<U1>(is_signed ? Opcode::SLessThan : Opcode::ULessThan, lhs, rhs);
}

5
src/shader_recompiler/frontend/ir/ir_emitter.h
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@ -163,6 +163,11 @@ public:
[[nodiscard]] U32 BitCount(const U32& value);
[[nodiscard]] U32 BitwiseNot(const U32& a);
[[nodiscard]] U32 SMin(const U32& a, const U32& b);
[[nodiscard]] U32 UMin(const U32& a, const U32& b);
[[nodiscard]] U32 SMax(const U32& a, const U32& b);
[[nodiscard]] U32 UMax(const U32& a, const U32& b);
[[nodiscard]] U1 ILessThan(const U32& lhs, const U32& rhs, bool is_signed);
[[nodiscard]] U1 IEqual(const U32& lhs, const U32& rhs);
[[nodiscard]] U1 ILessThanEqual(const U32& lhs, const U32& rhs, bool is_signed);

4
src/shader_recompiler/frontend/ir/opcodes.inc
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@ -235,6 +235,10 @@ OPCODE(BitReverse32, U32, U32,
OPCODE(BitCount32, U32, U32, )
OPCODE(BitwiseNot32, U32, U32, )
OPCODE(SMin32, U32, U32, U32, )
OPCODE(UMin32, U32, U32, U32, )
OPCODE(SMax32, U32, U32, U32, )
OPCODE(UMax32, U32, U32, U32, )
OPCODE(SLessThan, U1, U32, U32, )
OPCODE(ULessThan, U1, U32, U32, )
OPCODE(IEqual, U1, U32, U32, )

59
src/shader_recompiler/frontend/maxwell/translate/impl/integer_minimum_maximum.cpp Normal file
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@ -0,0 +1,59 @@
// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/bit_field.h"
#include "common/common_types.h"
#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
namespace Shader::Maxwell {
namespace {
void IMNMX(TranslatorVisitor& v, u64 insn, const IR::U32& op_b) {
union {
u64 insn;
BitField<0, 8, IR::Reg> dest_reg;
BitField<8, 8, IR::Reg> src_reg;
BitField<39, 3, IR::Pred> pred;
BitField<42, 1, u64> neg_pred;
BitField<43, 2, u64> mode;
BitField<48, 1, u64> is_signed;
} const imnmx{insn};
if (imnmx.mode != 0) {
throw NotImplementedException("IMNMX.MODE");
}
IR::U1 pred = v.ir.GetPred(imnmx.pred);
const IR::U32 op_a{v.X(imnmx.src_reg)};
IR::U32 min;
IR::U32 max;
if (imnmx.is_signed != 0) {
min = IR::U32{v.ir.SMin(op_a, op_b)};
max = IR::U32{v.ir.SMax(op_a, op_b)};
} else {
min = IR::U32{v.ir.UMin(op_a, op_b)};
max = IR::U32{v.ir.UMax(op_a, op_b)};
}
if (imnmx.neg_pred != 0) {
std::swap(min, max);
}
const IR::U32 result{v.ir.Select(pred, min, max)};
v.X(imnmx.dest_reg, result);
}
} // Anonymous namespace
void TranslatorVisitor::IMNMX_reg(u64 insn) {
IMNMX(*this, insn, GetReg20(insn));
}
void TranslatorVisitor::IMNMX_cbuf(u64 insn) {
IMNMX(*this, insn, GetCbuf(insn));
}
void TranslatorVisitor::IMNMX_imm(u64 insn) {
IMNMX(*this, insn, GetImm20(insn));
}
} // namespace Shader::Maxwell

12
src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp
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@ -453,18 +453,6 @@ void TranslatorVisitor::IMADSP_imm(u64) {
ThrowNotImplemented(Opcode::IMADSP_imm);
}
void TranslatorVisitor::IMNMX_reg(u64) {
ThrowNotImplemented(Opcode::IMNMX_reg);
}
void TranslatorVisitor::IMNMX_cbuf(u64) {
ThrowNotImplemented(Opcode::IMNMX_cbuf);
}
void TranslatorVisitor::IMNMX_imm(u64) {
ThrowNotImplemented(Opcode::IMNMX_imm);
}
void TranslatorVisitor::IMUL_reg(u64) {
ThrowNotImplemented(Opcode::IMUL_reg);
}