243 lines
7.4 KiB
C++
243 lines
7.4 KiB
C++
// Copyright 2021 yuzu Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#include "shader_recompiler/backend/spirv/emit_spirv.h"
|
|
|
|
namespace Shader::Backend::SPIRV {
|
|
namespace {
|
|
void SetZeroFlag(EmitContext& ctx, IR::Inst* inst, Id result) {
|
|
IR::Inst* const zero{inst->GetAssociatedPseudoOperation(IR::Opcode::GetZeroFromOp)};
|
|
if (!zero) {
|
|
return;
|
|
}
|
|
zero->SetDefinition(ctx.OpIEqual(ctx.U1, result, ctx.u32_zero_value));
|
|
zero->Invalidate();
|
|
}
|
|
|
|
void SetSignFlag(EmitContext& ctx, IR::Inst* inst, Id result) {
|
|
IR::Inst* const sign{inst->GetAssociatedPseudoOperation(IR::Opcode::GetSignFromOp)};
|
|
if (!sign) {
|
|
return;
|
|
}
|
|
sign->SetDefinition(ctx.OpSLessThan(ctx.U1, result, ctx.u32_zero_value));
|
|
sign->Invalidate();
|
|
}
|
|
} // Anonymous namespace
|
|
|
|
Id EmitIAdd32(EmitContext& ctx, IR::Inst* inst, Id a, Id b) {
|
|
Id result{};
|
|
if (IR::Inst* const carry{inst->GetAssociatedPseudoOperation(IR::Opcode::GetCarryFromOp)}) {
|
|
const Id carry_type{ctx.TypeStruct(ctx.U32[1], ctx.U32[1])};
|
|
const Id carry_result{ctx.OpIAddCarry(carry_type, a, b)};
|
|
result = ctx.OpCompositeExtract(ctx.U32[1], carry_result, 0U);
|
|
|
|
const Id carry_value{ctx.OpCompositeExtract(ctx.U32[1], carry_result, 1U)};
|
|
carry->SetDefinition(ctx.OpINotEqual(ctx.U1, carry_value, ctx.u32_zero_value));
|
|
carry->Invalidate();
|
|
} else {
|
|
result = ctx.OpIAdd(ctx.U32[1], a, b);
|
|
}
|
|
SetZeroFlag(ctx, inst, result);
|
|
SetSignFlag(ctx, inst, result);
|
|
if (IR::Inst * overflow{inst->GetAssociatedPseudoOperation(IR::Opcode::GetOverflowFromOp)}) {
|
|
// https://stackoverflow.com/questions/55468823/how-to-detect-integer-overflow-in-c
|
|
constexpr u32 s32_max{static_cast<u32>(std::numeric_limits<s32>::max())};
|
|
const Id is_positive{ctx.OpSGreaterThanEqual(ctx.U1, a, ctx.u32_zero_value)};
|
|
const Id sub_a{ctx.OpISub(ctx.U32[1], ctx.Constant(ctx.U32[1], s32_max), a)};
|
|
|
|
const Id positive_test{ctx.OpSGreaterThan(ctx.U1, b, sub_a)};
|
|
const Id negative_test{ctx.OpSLessThan(ctx.U1, b, sub_a)};
|
|
const Id carry_flag{ctx.OpSelect(ctx.U1, is_positive, positive_test, negative_test)};
|
|
overflow->SetDefinition(carry_flag);
|
|
overflow->Invalidate();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void EmitIAdd64(EmitContext&) {
|
|
throw NotImplementedException("SPIR-V Instruction");
|
|
}
|
|
|
|
Id EmitISub32(EmitContext& ctx, Id a, Id b) {
|
|
return ctx.OpISub(ctx.U32[1], a, b);
|
|
}
|
|
|
|
void EmitISub64(EmitContext&) {
|
|
throw NotImplementedException("SPIR-V Instruction");
|
|
}
|
|
|
|
Id EmitIMul32(EmitContext& ctx, Id a, Id b) {
|
|
return ctx.OpIMul(ctx.U32[1], a, b);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
Id EmitIAbs64(EmitContext& ctx, Id value) {
|
|
return ctx.OpSAbs(ctx.U64, value);
|
|
}
|
|
|
|
Id EmitShiftLeftLogical32(EmitContext& ctx, Id base, Id shift) {
|
|
return ctx.OpShiftLeftLogical(ctx.U32[1], base, shift);
|
|
}
|
|
|
|
Id EmitShiftLeftLogical64(EmitContext& ctx, Id base, Id shift) {
|
|
return ctx.OpShiftLeftLogical(ctx.U64, base, shift);
|
|
}
|
|
|
|
Id EmitShiftRightLogical32(EmitContext& ctx, Id base, Id shift) {
|
|
return ctx.OpShiftRightLogical(ctx.U32[1], base, shift);
|
|
}
|
|
|
|
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, IR::Inst* inst, Id a, Id b) {
|
|
const Id result{ctx.OpBitwiseAnd(ctx.U32[1], a, b)};
|
|
SetZeroFlag(ctx, inst, result);
|
|
SetSignFlag(ctx, inst, result);
|
|
return result;
|
|
}
|
|
|
|
Id EmitBitwiseOr32(EmitContext& ctx, IR::Inst* inst, Id a, Id b) {
|
|
const Id result{ctx.OpBitwiseOr(ctx.U32[1], a, b)};
|
|
SetZeroFlag(ctx, inst, result);
|
|
SetSignFlag(ctx, inst, result);
|
|
return result;
|
|
}
|
|
|
|
Id EmitBitwiseXor32(EmitContext& ctx, IR::Inst* inst, Id a, Id b) {
|
|
const Id result{ctx.OpBitwiseXor(ctx.U32[1], a, b)};
|
|
SetZeroFlag(ctx, inst, result);
|
|
SetSignFlag(ctx, inst, result);
|
|
return result;
|
|
}
|
|
|
|
Id EmitBitFieldInsert(EmitContext& ctx, Id base, Id insert, Id offset, Id count) {
|
|
return ctx.OpBitFieldInsert(ctx.U32[1], base, insert, offset, count);
|
|
}
|
|
|
|
Id EmitBitFieldSExtract(EmitContext& ctx, IR::Inst* inst, Id base, Id offset, Id count) {
|
|
const Id result{ctx.OpBitFieldSExtract(ctx.U32[1], base, offset, count)};
|
|
SetZeroFlag(ctx, inst, result);
|
|
SetSignFlag(ctx, inst, result);
|
|
return result;
|
|
}
|
|
|
|
Id EmitBitFieldUExtract(EmitContext& ctx, IR::Inst* inst, Id base, Id offset, Id count) {
|
|
const Id result{ctx.OpBitFieldUExtract(ctx.U32[1], base, offset, count)};
|
|
SetZeroFlag(ctx, inst, result);
|
|
SetSignFlag(ctx, inst, result);
|
|
return result;
|
|
}
|
|
|
|
Id EmitBitReverse32(EmitContext& ctx, Id value) {
|
|
return ctx.OpBitReverse(ctx.U32[1], value);
|
|
}
|
|
|
|
Id EmitBitCount32(EmitContext& ctx, Id value) {
|
|
return ctx.OpBitCount(ctx.U32[1], value);
|
|
}
|
|
|
|
Id EmitBitwiseNot32(EmitContext& ctx, Id value) {
|
|
return ctx.OpNot(ctx.U32[1], value);
|
|
}
|
|
|
|
Id EmitFindSMsb32(EmitContext& ctx, Id value) {
|
|
return ctx.OpFindSMsb(ctx.U32[1], value);
|
|
}
|
|
|
|
Id EmitFindUMsb32(EmitContext& ctx, Id value) {
|
|
return ctx.OpFindUMsb(ctx.U32[1], value);
|
|
}
|
|
|
|
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 EmitSClamp32(EmitContext& ctx, IR::Inst* inst, Id value, Id min, Id max) {
|
|
const Id result{ctx.OpSClamp(ctx.U32[1], value, min, max)};
|
|
SetZeroFlag(ctx, inst, result);
|
|
SetSignFlag(ctx, inst, result);
|
|
return result;
|
|
}
|
|
|
|
Id EmitUClamp32(EmitContext& ctx, IR::Inst* inst, Id value, Id min, Id max) {
|
|
const Id result{ctx.OpUClamp(ctx.U32[1], value, min, max)};
|
|
SetZeroFlag(ctx, inst, result);
|
|
SetSignFlag(ctx, inst, result);
|
|
return result;
|
|
}
|
|
|
|
Id EmitSLessThan(EmitContext& ctx, Id lhs, Id rhs) {
|
|
return ctx.OpSLessThan(ctx.U1, lhs, rhs);
|
|
}
|
|
|
|
Id EmitULessThan(EmitContext& ctx, Id lhs, Id rhs) {
|
|
return ctx.OpULessThan(ctx.U1, lhs, rhs);
|
|
}
|
|
|
|
Id EmitIEqual(EmitContext& ctx, Id lhs, Id rhs) {
|
|
return ctx.OpIEqual(ctx.U1, lhs, rhs);
|
|
}
|
|
|
|
Id EmitSLessThanEqual(EmitContext& ctx, Id lhs, Id rhs) {
|
|
return ctx.OpSLessThanEqual(ctx.U1, lhs, rhs);
|
|
}
|
|
|
|
Id EmitULessThanEqual(EmitContext& ctx, Id lhs, Id rhs) {
|
|
return ctx.OpULessThanEqual(ctx.U1, lhs, rhs);
|
|
}
|
|
|
|
Id EmitSGreaterThan(EmitContext& ctx, Id lhs, Id rhs) {
|
|
return ctx.OpSGreaterThan(ctx.U1, lhs, rhs);
|
|
}
|
|
|
|
Id EmitUGreaterThan(EmitContext& ctx, Id lhs, Id rhs) {
|
|
return ctx.OpUGreaterThan(ctx.U1, lhs, rhs);
|
|
}
|
|
|
|
Id EmitINotEqual(EmitContext& ctx, Id lhs, Id rhs) {
|
|
return ctx.OpINotEqual(ctx.U1, lhs, rhs);
|
|
}
|
|
|
|
Id EmitSGreaterThanEqual(EmitContext& ctx, Id lhs, Id rhs) {
|
|
return ctx.OpSGreaterThanEqual(ctx.U1, lhs, rhs);
|
|
}
|
|
|
|
Id EmitUGreaterThanEqual(EmitContext& ctx, Id lhs, Id rhs) {
|
|
return ctx.OpUGreaterThanEqual(ctx.U1, lhs, rhs);
|
|
}
|
|
|
|
} // namespace Shader::Backend::SPIRV
|