374 lines
11 KiB
C++
374 lines
11 KiB
C++
// Copyright 2021 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <memory>
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#include "shader_recompiler/exception.h"
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#include "shader_recompiler/frontend/ir/microinstruction.h"
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#include "shader_recompiler/frontend/ir/type.h"
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namespace Shader::IR {
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namespace {
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void CheckPseudoInstruction(IR::Inst* inst, IR::Opcode opcode) {
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if (inst && inst->GetOpcode() != opcode) {
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throw LogicError("Invalid pseudo-instruction");
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}
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}
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void SetPseudoInstruction(IR::Inst*& dest_inst, IR::Inst* pseudo_inst) {
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if (dest_inst) {
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throw LogicError("Only one of each type of pseudo-op allowed");
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}
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dest_inst = pseudo_inst;
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}
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void RemovePseudoInstruction(IR::Inst*& inst, IR::Opcode expected_opcode) {
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if (inst->GetOpcode() != expected_opcode) {
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throw LogicError("Undoing use of invalid pseudo-op");
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}
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inst = nullptr;
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}
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void AllocAssociatedInsts(std::unique_ptr<AssociatedInsts>& associated_insts) {
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if (!associated_insts) {
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associated_insts = std::make_unique<AssociatedInsts>();
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}
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}
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} // Anonymous namespace
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Inst::Inst(IR::Opcode op_, u32 flags_) noexcept : op{op_}, flags{flags_} {
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if (op == Opcode::Phi) {
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std::construct_at(&phi_args);
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} else {
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std::construct_at(&args);
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}
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}
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Inst::~Inst() {
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if (op == Opcode::Phi) {
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std::destroy_at(&phi_args);
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} else {
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std::destroy_at(&args);
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}
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}
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bool Inst::MayHaveSideEffects() const noexcept {
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switch (op) {
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case Opcode::Branch:
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case Opcode::BranchConditional:
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case Opcode::LoopMerge:
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case Opcode::SelectionMerge:
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case Opcode::Return:
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case Opcode::Unreachable:
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case Opcode::DemoteToHelperInvocation:
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case Opcode::Barrier:
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case Opcode::WorkgroupMemoryBarrier:
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case Opcode::DeviceMemoryBarrier:
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case Opcode::Prologue:
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case Opcode::Epilogue:
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case Opcode::EmitVertex:
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case Opcode::EndPrimitive:
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case Opcode::SetAttribute:
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case Opcode::SetAttributeIndexed:
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case Opcode::SetPatch:
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case Opcode::SetFragColor:
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case Opcode::SetSampleMask:
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case Opcode::SetFragDepth:
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case Opcode::WriteGlobalU8:
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case Opcode::WriteGlobalS8:
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case Opcode::WriteGlobalU16:
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case Opcode::WriteGlobalS16:
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case Opcode::WriteGlobal32:
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case Opcode::WriteGlobal64:
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case Opcode::WriteGlobal128:
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case Opcode::WriteStorageU8:
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case Opcode::WriteStorageS8:
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case Opcode::WriteStorageU16:
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case Opcode::WriteStorageS16:
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case Opcode::WriteStorage32:
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case Opcode::WriteStorage64:
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case Opcode::WriteStorage128:
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case Opcode::WriteLocal:
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case Opcode::WriteSharedU8:
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case Opcode::WriteSharedU16:
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case Opcode::WriteSharedU32:
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case Opcode::WriteSharedU64:
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case Opcode::WriteSharedU128:
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case Opcode::SharedAtomicIAdd32:
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case Opcode::SharedAtomicSMin32:
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case Opcode::SharedAtomicUMin32:
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case Opcode::SharedAtomicSMax32:
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case Opcode::SharedAtomicUMax32:
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case Opcode::SharedAtomicInc32:
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case Opcode::SharedAtomicDec32:
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case Opcode::SharedAtomicAnd32:
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case Opcode::SharedAtomicOr32:
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case Opcode::SharedAtomicXor32:
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case Opcode::SharedAtomicExchange32:
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case Opcode::SharedAtomicExchange64:
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case Opcode::GlobalAtomicIAdd32:
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case Opcode::GlobalAtomicSMin32:
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case Opcode::GlobalAtomicUMin32:
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case Opcode::GlobalAtomicSMax32:
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case Opcode::GlobalAtomicUMax32:
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case Opcode::GlobalAtomicInc32:
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case Opcode::GlobalAtomicDec32:
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case Opcode::GlobalAtomicAnd32:
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case Opcode::GlobalAtomicOr32:
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case Opcode::GlobalAtomicXor32:
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case Opcode::GlobalAtomicExchange32:
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case Opcode::GlobalAtomicIAdd64:
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case Opcode::GlobalAtomicSMin64:
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case Opcode::GlobalAtomicUMin64:
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case Opcode::GlobalAtomicSMax64:
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case Opcode::GlobalAtomicUMax64:
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case Opcode::GlobalAtomicAnd64:
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case Opcode::GlobalAtomicOr64:
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case Opcode::GlobalAtomicXor64:
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case Opcode::GlobalAtomicExchange64:
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case Opcode::GlobalAtomicAddF32:
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case Opcode::GlobalAtomicAddF16x2:
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case Opcode::GlobalAtomicAddF32x2:
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case Opcode::GlobalAtomicMinF16x2:
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case Opcode::GlobalAtomicMinF32x2:
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case Opcode::GlobalAtomicMaxF16x2:
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case Opcode::GlobalAtomicMaxF32x2:
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case Opcode::StorageAtomicIAdd32:
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case Opcode::StorageAtomicSMin32:
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case Opcode::StorageAtomicUMin32:
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case Opcode::StorageAtomicSMax32:
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case Opcode::StorageAtomicUMax32:
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case Opcode::StorageAtomicInc32:
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case Opcode::StorageAtomicDec32:
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case Opcode::StorageAtomicAnd32:
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case Opcode::StorageAtomicOr32:
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case Opcode::StorageAtomicXor32:
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case Opcode::StorageAtomicExchange32:
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case Opcode::StorageAtomicIAdd64:
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case Opcode::StorageAtomicSMin64:
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case Opcode::StorageAtomicUMin64:
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case Opcode::StorageAtomicSMax64:
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case Opcode::StorageAtomicUMax64:
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case Opcode::StorageAtomicAnd64:
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case Opcode::StorageAtomicOr64:
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case Opcode::StorageAtomicXor64:
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case Opcode::StorageAtomicExchange64:
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case Opcode::StorageAtomicAddF32:
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case Opcode::StorageAtomicAddF16x2:
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case Opcode::StorageAtomicAddF32x2:
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case Opcode::StorageAtomicMinF16x2:
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case Opcode::StorageAtomicMinF32x2:
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case Opcode::StorageAtomicMaxF16x2:
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case Opcode::StorageAtomicMaxF32x2:
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case Opcode::BindlessImageWrite:
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case Opcode::BoundImageWrite:
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case Opcode::ImageWrite:
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return true;
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default:
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return false;
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}
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}
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bool Inst::IsPseudoInstruction() const noexcept {
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switch (op) {
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case Opcode::GetZeroFromOp:
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case Opcode::GetSignFromOp:
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case Opcode::GetCarryFromOp:
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case Opcode::GetOverflowFromOp:
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case Opcode::GetSparseFromOp:
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case Opcode::GetInBoundsFromOp:
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return true;
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default:
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return false;
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}
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}
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bool Inst::AreAllArgsImmediates() const {
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if (op == Opcode::Phi) {
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throw LogicError("Testing for all arguments are immediates on phi instruction");
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}
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return std::all_of(args.begin(), args.begin() + NumArgs(),
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[](const IR::Value& value) { return value.IsImmediate(); });
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}
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Inst* Inst::GetAssociatedPseudoOperation(IR::Opcode opcode) {
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if (!associated_insts) {
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return nullptr;
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}
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switch (opcode) {
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case Opcode::GetZeroFromOp:
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CheckPseudoInstruction(associated_insts->zero_inst, Opcode::GetZeroFromOp);
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return associated_insts->zero_inst;
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case Opcode::GetSignFromOp:
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CheckPseudoInstruction(associated_insts->sign_inst, Opcode::GetSignFromOp);
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return associated_insts->sign_inst;
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case Opcode::GetCarryFromOp:
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CheckPseudoInstruction(associated_insts->carry_inst, Opcode::GetCarryFromOp);
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return associated_insts->carry_inst;
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case Opcode::GetOverflowFromOp:
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CheckPseudoInstruction(associated_insts->overflow_inst, Opcode::GetOverflowFromOp);
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return associated_insts->overflow_inst;
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case Opcode::GetSparseFromOp:
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CheckPseudoInstruction(associated_insts->sparse_inst, Opcode::GetSparseFromOp);
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return associated_insts->sparse_inst;
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case Opcode::GetInBoundsFromOp:
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CheckPseudoInstruction(associated_insts->in_bounds_inst, Opcode::GetInBoundsFromOp);
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return associated_insts->in_bounds_inst;
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default:
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throw InvalidArgument("{} is not a pseudo-instruction", opcode);
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}
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}
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IR::Type Inst::Type() const {
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return TypeOf(op);
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}
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void Inst::SetArg(size_t index, Value value) {
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if (index >= NumArgs()) {
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throw InvalidArgument("Out of bounds argument index {} in opcode {}", index, op);
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}
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const IR::Value arg{Arg(index)};
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if (!arg.IsImmediate()) {
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UndoUse(arg);
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}
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if (!value.IsImmediate()) {
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Use(value);
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}
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if (op == Opcode::Phi) {
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phi_args[index].second = value;
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} else {
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args[index] = value;
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}
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}
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Block* Inst::PhiBlock(size_t index) const {
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if (op != Opcode::Phi) {
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throw LogicError("{} is not a Phi instruction", op);
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}
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if (index >= phi_args.size()) {
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throw InvalidArgument("Out of bounds argument index {} in phi instruction");
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}
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return phi_args[index].first;
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}
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void Inst::AddPhiOperand(Block* predecessor, const Value& value) {
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if (!value.IsImmediate()) {
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Use(value);
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}
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phi_args.emplace_back(predecessor, value);
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}
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void Inst::Invalidate() {
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ClearArgs();
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ReplaceOpcode(Opcode::Void);
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}
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void Inst::ClearArgs() {
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if (op == Opcode::Phi) {
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for (auto& pair : phi_args) {
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IR::Value& value{pair.second};
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if (!value.IsImmediate()) {
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UndoUse(value);
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}
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}
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phi_args.clear();
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} else {
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for (auto& value : args) {
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if (!value.IsImmediate()) {
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UndoUse(value);
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}
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value = {};
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}
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}
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}
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void Inst::ReplaceUsesWith(Value replacement) {
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Invalidate();
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ReplaceOpcode(Opcode::Identity);
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if (!replacement.IsImmediate()) {
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Use(replacement);
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}
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args[0] = replacement;
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}
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void Inst::ReplaceOpcode(IR::Opcode opcode) {
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if (opcode == IR::Opcode::Phi) {
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throw LogicError("Cannot transition into Phi");
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}
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if (op == Opcode::Phi) {
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// Transition out of phi arguments into non-phi
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std::destroy_at(&phi_args);
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std::construct_at(&args);
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}
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op = opcode;
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}
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void Inst::Use(const Value& value) {
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Inst* const inst{value.Inst()};
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++inst->use_count;
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std::unique_ptr<AssociatedInsts>& assoc_inst{inst->associated_insts};
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switch (op) {
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case Opcode::GetZeroFromOp:
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AllocAssociatedInsts(assoc_inst);
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SetPseudoInstruction(assoc_inst->zero_inst, this);
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break;
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case Opcode::GetSignFromOp:
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AllocAssociatedInsts(assoc_inst);
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SetPseudoInstruction(assoc_inst->sign_inst, this);
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break;
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case Opcode::GetCarryFromOp:
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AllocAssociatedInsts(assoc_inst);
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SetPseudoInstruction(assoc_inst->carry_inst, this);
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break;
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case Opcode::GetOverflowFromOp:
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AllocAssociatedInsts(assoc_inst);
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SetPseudoInstruction(assoc_inst->overflow_inst, this);
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break;
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case Opcode::GetSparseFromOp:
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AllocAssociatedInsts(assoc_inst);
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SetPseudoInstruction(assoc_inst->sparse_inst, this);
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break;
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case Opcode::GetInBoundsFromOp:
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AllocAssociatedInsts(assoc_inst);
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SetPseudoInstruction(assoc_inst->in_bounds_inst, this);
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break;
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default:
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break;
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}
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}
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void Inst::UndoUse(const Value& value) {
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Inst* const inst{value.Inst()};
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--inst->use_count;
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std::unique_ptr<AssociatedInsts>& assoc_inst{inst->associated_insts};
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switch (op) {
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case Opcode::GetZeroFromOp:
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AllocAssociatedInsts(assoc_inst);
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RemovePseudoInstruction(assoc_inst->zero_inst, Opcode::GetZeroFromOp);
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break;
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case Opcode::GetSignFromOp:
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AllocAssociatedInsts(assoc_inst);
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RemovePseudoInstruction(assoc_inst->sign_inst, Opcode::GetSignFromOp);
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break;
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case Opcode::GetCarryFromOp:
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AllocAssociatedInsts(assoc_inst);
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RemovePseudoInstruction(assoc_inst->carry_inst, Opcode::GetCarryFromOp);
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break;
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case Opcode::GetOverflowFromOp:
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AllocAssociatedInsts(assoc_inst);
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RemovePseudoInstruction(assoc_inst->overflow_inst, Opcode::GetOverflowFromOp);
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break;
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case Opcode::GetInBoundsFromOp:
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AllocAssociatedInsts(assoc_inst);
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RemovePseudoInstruction(assoc_inst->in_bounds_inst, Opcode::GetInBoundsFromOp);
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break;
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default:
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break;
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}
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}
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} // namespace Shader::IR
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