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shader: Implement LEA

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This commit is contained in:
ameerj 2021-03-05 01:15:16 -05:00
parent d1edc16ba8
commit 5465cb1561
9 changed files with 136 additions and 29 deletions
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1
src/shader_recompiler/CMakeLists.txt
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@ -86,6 +86,7 @@ add_library(shader_recompiler STATIC
frontend/maxwell/translate/impl/integer_shift_right.cpp
frontend/maxwell/translate/impl/integer_short_multiply_add.cpp
frontend/maxwell/translate/impl/integer_to_integer_conversion.cpp
frontend/maxwell/translate/impl/load_effective_address.cpp
frontend/maxwell/translate/impl/load_store_attribute.cpp
frontend/maxwell/translate/impl/load_store_memory.cpp
frontend/maxwell/translate/impl/logic_operation.cpp

4
src/shader_recompiler/backend/spirv/emit_spirv.h
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@ -132,7 +132,7 @@ void EmitBitCastU64F64(EmitContext& ctx);
void EmitBitCastF16U16(EmitContext& ctx);
Id EmitBitCastF32U32(EmitContext& ctx, Id value);
void EmitBitCastF64U64(EmitContext& ctx);
void EmitPackUint2x32(EmitContext& ctx);
Id EmitPackUint2x32(EmitContext& ctx, Id value);
Id EmitUnpackUint2x32(EmitContext& ctx, Id value);
Id EmitPackFloat2x16(EmitContext& ctx, Id value);
Id EmitUnpackFloat2x16(EmitContext& ctx, Id value);
@ -229,9 +229,11 @@ Id EmitISub32(EmitContext& ctx, Id a, Id b);
void EmitISub64(EmitContext& ctx);
Id EmitIMul32(EmitContext& ctx, Id a, Id b);
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 EmitBitwiseAnd32(EmitContext& ctx, Id a, Id b);
Id EmitBitwiseOr32(EmitContext& ctx, Id a, Id b);

4
src/shader_recompiler/backend/spirv/emit_spirv_bitwise_conversion.cpp
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@ -30,8 +30,8 @@ void EmitBitCastF64U64(EmitContext&) {
throw NotImplementedException("SPIR-V Instruction");
}
void EmitPackUint2x32(EmitContext&) {
throw NotImplementedException("SPIR-V Instruction");
Id EmitPackUint2x32(EmitContext& ctx, Id value) {
return ctx.OpBitcast(ctx.U64, value);
}
Id EmitUnpackUint2x32(EmitContext& ctx, Id value) {

8
src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
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@ -62,6 +62,10 @@ Id EmitINeg32(EmitContext& ctx, Id value) {
return ctx.OpSNegate(ctx.U32[1], value);
}
Id EmitINeg64(EmitContext& ctx, Id value) {
return ctx.OpSNegate(ctx.U64, value);
}
Id EmitIAbs32(EmitContext& ctx, Id value) {
return ctx.OpSAbs(ctx.U32[1], value);
}
@ -74,6 +78,10 @@ Id EmitShiftRightLogical32(EmitContext& ctx, Id a, Id b) {
return ctx.OpShiftRightLogical(ctx.U32[1], a, b);
}
Id EmitShiftRightLogical64(EmitContext& ctx, Id a, Id b) {
return ctx.OpShiftRightLogical(ctx.U64, a, b);
}
Id EmitShiftRightArithmetic32(EmitContext& ctx, Id a, Id b) {
return ctx.OpShiftRightArithmetic(ctx.U32[1], a, b);
}

22
src/shader_recompiler/frontend/ir/ir_emitter.cpp
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@ -798,8 +798,15 @@ U32 IREmitter::IMul(const U32& a, const U32& b) {
return Inst<U32>(Opcode::IMul32, a, b);
}
U32 IREmitter::INeg(const U32& value) {
return Inst<U32>(Opcode::INeg32, value);
U32U64 IREmitter::INeg(const U32U64& value) {
switch (value.Type()) {
case Type::U32:
return Inst<U32>(Opcode::INeg32, value);
case Type::U64:
return Inst<U64>(Opcode::INeg64, value);
default:
ThrowInvalidType(value.Type());
}
}
U32 IREmitter::IAbs(const U32& value) {
@ -810,8 +817,15 @@ U32 IREmitter::ShiftLeftLogical(const U32& base, const U32& shift) {
return Inst<U32>(Opcode::ShiftLeftLogical32, base, shift);
}
U32 IREmitter::ShiftRightLogical(const U32& base, const U32& shift) {
return Inst<U32>(Opcode::ShiftRightLogical32, base, shift);
U32U64 IREmitter::ShiftRightLogical(const U32U64& base, const U32& shift) {
switch (base.Type()) {
case Type::U32:
return Inst<U32>(Opcode::ShiftRightLogical32, base, shift);
case Type::U64:
return Inst<U64>(Opcode::ShiftRightLogical64, base, shift);
default:
ThrowInvalidType(base.Type());
}
}
U32 IREmitter::ShiftRightArithmetic(const U32& base, const U32& shift) {

4
src/shader_recompiler/frontend/ir/ir_emitter.h
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@ -148,10 +148,10 @@ public:
[[nodiscard]] U32U64 IAdd(const U32U64& a, const U32U64& b);
[[nodiscard]] U32U64 ISub(const U32U64& a, const U32U64& b);
[[nodiscard]] U32 IMul(const U32& a, const U32& b);
[[nodiscard]] U32 INeg(const U32& value);
[[nodiscard]] U32U64 INeg(const U32U64& value);
[[nodiscard]] U32 IAbs(const U32& value);
[[nodiscard]] U32 ShiftLeftLogical(const U32& base, const U32& shift);
[[nodiscard]] U32 ShiftRightLogical(const U32& base, const U32& shift);
[[nodiscard]] U32U64 ShiftRightLogical(const U32U64& base, const U32& shift);
[[nodiscard]] U32 ShiftRightArithmetic(const U32& base, const U32& shift);
[[nodiscard]] U32 BitwiseAnd(const U32& a, const U32& b);
[[nodiscard]] U32 BitwiseOr(const U32& a, const U32& b);

2
src/shader_recompiler/frontend/ir/opcodes.inc
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@ -233,9 +233,11 @@ OPCODE(ISub32, U32, U32,
OPCODE(ISub64, U64, U64, U64, )
OPCODE(IMul32, U32, U32, U32, )
OPCODE(INeg32, U32, U32, )
OPCODE(INeg64, U64, U64, )
OPCODE(IAbs32, U32, U32, )
OPCODE(ShiftLeftLogical32, U32, U32, U32, )
OPCODE(ShiftRightLogical32, U32, U32, U32, )
OPCODE(ShiftRightLogical64, U64, U64, U32, )
OPCODE(ShiftRightArithmetic32, U32, U32, U32, )
OPCODE(BitwiseAnd32, U32, U32, U32, )
OPCODE(BitwiseOr32, U32, U32, U32, )

100
src/shader_recompiler/frontend/maxwell/translate/impl/load_effective_address.cpp Normal file
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@ -0,0 +1,100 @@
// 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 LEA_hi(TranslatorVisitor& v, u64 insn, const IR::U32& base, IR::U32 offset_hi, u64 scale,
bool neg, bool x) {
union {
u64 insn;
BitField<0, 8, IR::Reg> dest_reg;
BitField<8, 8, IR::Reg> offset_lo_reg;
BitField<48, 3, IR::Pred> pred;
} const lea{insn};
if (x) {
throw NotImplementedException("LEA.HI X");
}
if (lea.pred != IR::Pred::PT) {
throw NotImplementedException("LEA.LO Pred");
}
const IR::U32 offset_lo{v.X(lea.offset_lo_reg)};
const IR::U64 packed_offset{v.ir.PackUint2x32(v.ir.CompositeConstruct(offset_lo, offset_hi))};
const IR::U64 offset{neg ? IR::U64{v.ir.INeg(packed_offset)} : packed_offset};
const s32 hi_scale{32 - static_cast<s32>(scale)};
const IR::U64 scaled_offset{v.ir.ShiftRightLogical(offset, v.ir.Imm32(hi_scale))};
const IR::U32 scaled_offset_w0{v.ir.CompositeExtract(v.ir.UnpackUint2x32(scaled_offset), 0)};
IR::U32 result{v.ir.IAdd(base, scaled_offset_w0)};
v.X(lea.dest_reg, result);
}
void LEA_lo(TranslatorVisitor& v, u64 insn, const IR::U32& base) {
union {
u64 insn;
BitField<0, 8, IR::Reg> dest_reg;
BitField<8, 8, IR::Reg> offset_lo_reg;
BitField<39, 5, u64> scale;
BitField<45, 1, u64> neg;
BitField<46, 1, u64> x;
BitField<48, 3, IR::Pred> pred;
} const lea{insn};
if (lea.x != 0) {
throw NotImplementedException("LEA.LO X");
}
if (lea.pred != IR::Pred::PT) {
throw NotImplementedException("LEA.LO Pred");
}
const IR::U32 offset_lo{v.X(lea.offset_lo_reg)};
const s32 scale{static_cast<s32>(lea.scale)};
const IR::U32 offset{lea.neg != 0 ? IR::U32{v.ir.INeg(offset_lo)} : offset_lo};
const IR::U32 scaled_offset{v.ir.ShiftLeftLogical(offset, v.ir.Imm32(scale))};
IR::U32 result{v.ir.IAdd(base, scaled_offset)};
v.X(lea.dest_reg, result);
}
} // Anonymous namespace
void TranslatorVisitor::LEA_hi_reg(u64 insn) {
union {
u64 insn;
BitField<28, 5, u64> scale;
BitField<37, 1, u64> neg;
BitField<38, 1, u64> x;
} const lea{insn};
LEA_hi(*this, insn, GetReg20(insn), GetReg39(insn), lea.scale, lea.neg != 0, lea.x != 0);
}
void TranslatorVisitor::LEA_hi_cbuf(u64 insn) {
union {
u64 insn;
BitField<51, 5, u64> scale;
BitField<56, 1, u64> neg;
BitField<57, 1, u64> x;
} const lea{insn};
LEA_hi(*this, insn, GetCbuf(insn), GetReg39(insn), lea.scale, lea.neg != 0, lea.x != 0);
}
void TranslatorVisitor::LEA_lo_reg(u64 insn) {
LEA_lo(*this, insn, GetReg20(insn));
}
void TranslatorVisitor::LEA_lo_cbuf(u64 insn) {
LEA_lo(*this, insn, GetCbuf(insn));
}
void TranslatorVisitor::LEA_lo_imm(u64 insn) {
LEA_lo(*this, insn, GetImm20(insn));
}
} // namespace Shader::Maxwell

20
src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp
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@ -437,26 +437,6 @@ void TranslatorVisitor::LDS(u64) {
ThrowNotImplemented(Opcode::LDS);
}
void TranslatorVisitor::LEA_hi_reg(u64) {
ThrowNotImplemented(Opcode::LEA_hi_reg);
}
void TranslatorVisitor::LEA_hi_cbuf(u64) {
ThrowNotImplemented(Opcode::LEA_hi_cbuf);
}
void TranslatorVisitor::LEA_lo_reg(u64) {
ThrowNotImplemented(Opcode::LEA_lo_reg);
}
void TranslatorVisitor::LEA_lo_cbuf(u64) {
ThrowNotImplemented(Opcode::LEA_lo_cbuf);
}
void TranslatorVisitor::LEA_lo_imm(u64) {
ThrowNotImplemented(Opcode::LEA_lo_imm);
}
void TranslatorVisitor::LEPC(u64) {
ThrowNotImplemented(Opcode::LEPC);
}