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shader: Implement SHF

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This commit is contained in:
ameerj
2021-03-07 14:48:03 -05:00
parent 5465cb1561
commit 924f0a9149
8 changed files with 119 additions and 31 deletions
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1
src/shader_recompiler/CMakeLists.txt
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@@ -78,6 +78,7 @@ add_library(shader_recompiler STATIC
frontend/maxwell/translate/impl/integer_add_three_input.cpp
frontend/maxwell/translate/impl/integer_compare.cpp
frontend/maxwell/translate/impl/integer_compare_and_set.cpp
frontend/maxwell/translate/impl/integer_funnel_shift.cpp
frontend/maxwell/translate/impl/integer_minimum_maximum.cpp
frontend/maxwell/translate/impl/integer_popcount.cpp
frontend/maxwell/translate/impl/integer_scaled_add.cpp

8
src/shader_recompiler/backend/spirv/emit_spirv.h
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@@ -232,9 +232,11 @@ Id EmitINeg32(EmitContext& ctx, Id value);
Id EmitINeg64(EmitContext& ctx, Id value);
Id EmitIAbs32(EmitContext& ctx, Id value);
Id EmitShiftLeftLogical32(EmitContext& ctx, Id base, Id shift);
Id EmitShiftRightLogical32(EmitContext& ctx, Id a, Id b);
Id EmitShiftRightLogical64(EmitContext& ctx, Id a, Id b);
Id EmitShiftRightArithmetic32(EmitContext& ctx, Id a, Id b);
Id EmitShiftLeftLogical64(EmitContext& ctx, Id base, Id shift);
Id EmitShiftRightLogical32(EmitContext& ctx, Id base, Id shift);
Id EmitShiftRightLogical64(EmitContext& ctx, Id base, Id shift);
Id EmitShiftRightArithmetic32(EmitContext& ctx, Id base, Id shift);
Id EmitShiftRightArithmetic64(EmitContext& ctx, Id base, Id shift);
Id EmitBitwiseAnd32(EmitContext& ctx, Id a, Id b);
Id EmitBitwiseOr32(EmitContext& ctx, Id a, Id b);
Id EmitBitwiseXor32(EmitContext& ctx, Id a, Id b);

20
src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
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@@ -74,16 +74,24 @@ Id EmitShiftLeftLogical32(EmitContext& ctx, Id base, Id shift) {
return ctx.OpShiftLeftLogical(ctx.U32[1], base, shift);
}
Id EmitShiftRightLogical32(EmitContext& ctx, Id a, Id b) {
return ctx.OpShiftRightLogical(ctx.U32[1], a, b);
Id EmitShiftLeftLogical64(EmitContext& ctx, Id base, Id shift) {
return ctx.OpShiftLeftLogical(ctx.U64, base, shift);
}
Id EmitShiftRightLogical64(EmitContext& ctx, Id a, Id b) {
return ctx.OpShiftRightLogical(ctx.U64, a, b);
Id EmitShiftRightLogical32(EmitContext& ctx, Id base, Id shift) {
return ctx.OpShiftRightLogical(ctx.U32[1], base, shift);
}
Id EmitShiftRightArithmetic32(EmitContext& ctx, Id a, Id b) {
return ctx.OpShiftRightArithmetic(ctx.U32[1], a, b);
Id EmitShiftRightLogical64(EmitContext& ctx, Id base, Id shift) {
return ctx.OpShiftRightLogical(ctx.U64, base, shift);
}
Id EmitShiftRightArithmetic32(EmitContext& ctx, Id base, Id shift) {
return ctx.OpShiftRightArithmetic(ctx.U32[1], base, shift);
}
Id EmitShiftRightArithmetic64(EmitContext& ctx, Id base, Id shift) {
return ctx.OpShiftRightArithmetic(ctx.U64, base, shift);
}
Id EmitBitwiseAnd32(EmitContext& ctx, Id a, Id b) {

22
src/shader_recompiler/frontend/ir/ir_emitter.cpp
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@@ -813,8 +813,15 @@ U32 IREmitter::IAbs(const U32& value) {
return Inst<U32>(Opcode::IAbs32, value);
}
U32 IREmitter::ShiftLeftLogical(const U32& base, const U32& shift) {
return Inst<U32>(Opcode::ShiftLeftLogical32, base, shift);
U32U64 IREmitter::ShiftLeftLogical(const U32U64& base, const U32& shift) {
switch (base.Type()) {
case Type::U32:
return Inst<U32>(Opcode::ShiftLeftLogical32, base, shift);
case Type::U64:
return Inst<U64>(Opcode::ShiftLeftLogical64, base, shift);
default:
ThrowInvalidType(base.Type());
}
}
U32U64 IREmitter::ShiftRightLogical(const U32U64& base, const U32& shift) {
@@ -828,8 +835,15 @@ U32U64 IREmitter::ShiftRightLogical(const U32U64& base, const U32& shift) {
}
}
U32 IREmitter::ShiftRightArithmetic(const U32& base, const U32& shift) {
return Inst<U32>(Opcode::ShiftRightArithmetic32, base, shift);
U32U64 IREmitter::ShiftRightArithmetic(const U32U64& base, const U32& shift) {
switch (base.Type()) {
case Type::U32:
return Inst<U32>(Opcode::ShiftRightArithmetic32, base, shift);
case Type::U64:
return Inst<U64>(Opcode::ShiftRightArithmetic64, base, shift);
default:
ThrowInvalidType(base.Type());
}
}
U32 IREmitter::BitwiseAnd(const U32& a, const U32& b) {

4
src/shader_recompiler/frontend/ir/ir_emitter.h
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@@ -150,9 +150,9 @@ public:
[[nodiscard]] U32 IMul(const U32& a, const U32& b);
[[nodiscard]] U32U64 INeg(const U32U64& value);
[[nodiscard]] U32 IAbs(const U32& value);
[[nodiscard]] U32 ShiftLeftLogical(const U32& base, const U32& shift);
[[nodiscard]] U32U64 ShiftLeftLogical(const U32U64& base, const U32& shift);
[[nodiscard]] U32U64 ShiftRightLogical(const U32U64& base, const U32& shift);
[[nodiscard]] U32 ShiftRightArithmetic(const U32& base, const U32& shift);
[[nodiscard]] U32U64 ShiftRightArithmetic(const U32U64& base, const U32& shift);
[[nodiscard]] U32 BitwiseAnd(const U32& a, const U32& b);
[[nodiscard]] U32 BitwiseOr(const U32& a, const U32& b);
[[nodiscard]] U32 BitwiseXor(const U32& a, const U32& b);

2
src/shader_recompiler/frontend/ir/opcodes.inc
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@@ -236,9 +236,11 @@ OPCODE(INeg32, U32, U32,
OPCODE(INeg64, U64, U64, )
OPCODE(IAbs32, U32, U32, )
OPCODE(ShiftLeftLogical32, U32, U32, U32, )
OPCODE(ShiftLeftLogical64, U64, U64, U32, )
OPCODE(ShiftRightLogical32, U32, U32, U32, )
OPCODE(ShiftRightLogical64, U64, U64, U32, )
OPCODE(ShiftRightArithmetic32, U32, U32, U32, )
OPCODE(ShiftRightArithmetic64, U64, U64, U32, )
OPCODE(BitwiseAnd32, U32, U32, U32, )
OPCODE(BitwiseOr32, U32, U32, U32, )
OPCODE(BitwiseXor32, U32, U32, U32, )

77
src/shader_recompiler/frontend/maxwell/translate/impl/integer_funnel_shift.cpp Normal file
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@@ -0,0 +1,77 @@
// 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 {
enum class MaxShift : u64 {
U32,
Undefined,
U64,
S64,
};
IR::U64 PackedShift(IR::IREmitter& ir, const IR::U64& packed_int, const IR::U32& safe_shift,
bool right_shift, bool is_signed) {
if (!right_shift) {
return ir.ShiftLeftLogical(packed_int, safe_shift);
}
if (is_signed) {
return ir.ShiftRightArithmetic(packed_int, safe_shift);
}
return ir.ShiftRightLogical(packed_int, safe_shift);
}
void SHF(TranslatorVisitor& v, u64 insn, const IR::U32& shift, const IR::U32& high_bits,
bool right_shift) {
union {
u64 insn;
BitField<0, 8, IR::Reg> dest_reg;
BitField<0, 8, IR::Reg> lo_bits_reg;
BitField<37, 2, MaxShift> max_shift;
BitField<48, 2, u64> x_mode;
BitField<50, 1, u64> wrap;
} const shf{insn};
if (shf.x_mode != 0) {
throw NotImplementedException("SHF X Mode");
}
if (shf.max_shift == MaxShift::Undefined) {
throw NotImplementedException("SHF Use of undefined MaxShift value");
}
const IR::U32 low_bits{v.X(shf.lo_bits_reg)};
const IR::U64 packed_int{v.ir.PackUint2x32(v.ir.CompositeConstruct(low_bits, high_bits))};
const IR::U32 max_shift{shf.max_shift == MaxShift::U32 ? v.ir.Imm32(32) : v.ir.Imm32(63)};
const IR::U32 safe_shift{shf.wrap != 0
? v.ir.BitwiseAnd(shift, v.ir.ISub(max_shift, v.ir.Imm32(1)))
: v.ir.UMin(shift, max_shift)};
const bool is_signed{shf.max_shift == MaxShift::S64};
const IR::U64 shifted_value{PackedShift(v.ir, packed_int, safe_shift, right_shift, is_signed)};
const IR::Value unpacked_value{v.ir.UnpackUint2x32(shifted_value)};
const IR::U32 result{v.ir.CompositeExtract(unpacked_value, right_shift ? 0 : 1)};
v.X(shf.dest_reg, result);
}
} // Anonymous namespace
void TranslatorVisitor::SHF_l_reg(u64 insn) {
SHF(*this, insn, GetReg20(insn), GetReg39(insn), false);
}
void TranslatorVisitor::SHF_l_imm(u64 insn) {
SHF(*this, insn, GetImm20(insn), GetReg39(insn), false);
}
void TranslatorVisitor::SHF_r_reg(u64 insn) {
SHF(*this, insn, GetReg20(insn), GetReg39(insn), true);
}
void TranslatorVisitor::SHF_r_imm(u64 insn) {
SHF(*this, insn, GetImm20(insn), GetReg39(insn), true);
}
} // namespace Shader::Maxwell

16
src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp
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@@ -553,22 +553,6 @@ void TranslatorVisitor::SETLMEMBASE(u64) {
ThrowNotImplemented(Opcode::SETLMEMBASE);
}
void TranslatorVisitor::SHF_l_reg(u64) {
ThrowNotImplemented(Opcode::SHF_l_reg);
}
void TranslatorVisitor::SHF_l_imm(u64) {
ThrowNotImplemented(Opcode::SHF_l_imm);
}
void TranslatorVisitor::SHF_r_reg(u64) {
ThrowNotImplemented(Opcode::SHF_r_reg);
}
void TranslatorVisitor::SHF_r_imm(u64) {
ThrowNotImplemented(Opcode::SHF_r_imm);
}
void TranslatorVisitor::SHFL(u64) {
ThrowNotImplemented(Opcode::SHFL);
}