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shader: Properly store phi on Inst

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This commit is contained in:
ReinUsesLisp 2021-02-06 02:38:22 -03:00 • committed by ameerj
parent 16cb00c521
commit da8096e6e3
6 changed files with 132 additions and 75 deletions
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102
src/shader_recompiler/frontend/ir/microinstruction.cpp
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@ -3,6 +3,7 @@
// Refer to the license.txt file included.
#include <algorithm>
#include <memory>
#include "shader_recompiler/exception.h"
#include "shader_recompiler/frontend/ir/microinstruction.h"
@ -30,6 +31,22 @@ static void RemovePseudoInstruction(IR::Inst*& inst, IR::Opcode expected_opcode)
inst = nullptr;
}
Inst::Inst(IR::Opcode op_, u64 flags_) noexcept : op{op_}, flags{flags_} {
if (op == Opcode::Phi) {
std::construct_at(&phi_args);
} else {
std::construct_at(&args);
}
}
Inst::~Inst() {
if (op == Opcode::Phi) {
std::destroy_at(&phi_args);
} else {
std::destroy_at(&args);
}
}
bool Inst::MayHaveSideEffects() const noexcept {
switch (op) {
case Opcode::Branch:
@ -71,7 +88,10 @@ bool Inst::IsPseudoInstruction() const noexcept {
}
}
bool Inst::AreAllArgsImmediates() const noexcept {
bool Inst::AreAllArgsImmediates() const {
if (op == Opcode::Phi) {
throw LogicError("Testing for all arguments are immediates on phi instruction");
}
return std::all_of(args.begin(), args.begin() + NumArgs(),
[](const IR::Value& value) { return value.IsImmediate(); });
}
@ -101,7 +121,7 @@ Inst* Inst::GetAssociatedPseudoOperation(IR::Opcode opcode) {
}
size_t Inst::NumArgs() const {
return NumArgsOf(op);
return op == Opcode::Phi ? phi_args.size() : NumArgsOf(op);
}
IR::Type Inst::Type() const {
@ -109,13 +129,23 @@ IR::Type Inst::Type() const {
}
Value Inst::Arg(size_t index) const {
if (index >= NumArgsOf(op)) {
throw InvalidArgument("Out of bounds argument index {} in opcode {}", index, op);
if (op == Opcode::Phi) {
if (index >= phi_args.size()) {
throw InvalidArgument("Out of bounds argument index {} in phi instruction", index);
}
return phi_args[index].second;
} else {
if (index >= NumArgsOf(op)) {
throw InvalidArgument("Out of bounds argument index {} in opcode {}", index, op);
}
return args[index];
}
return args[index];
}
void Inst::SetArg(size_t index, Value value) {
if (op == Opcode::Phi) {
throw LogicError("Setting argument on a phi instruction");
}
if (index >= NumArgsOf(op)) {
throw InvalidArgument("Out of bounds argument index {} in opcode {}", index, op);
}
@ -128,15 +158,21 @@ void Inst::SetArg(size_t index, Value value) {
args[index] = value;
}
std::span<const std::pair<Block*, Value>> Inst::PhiOperands() const noexcept {
return phi_operands;
Block* Inst::PhiBlock(size_t index) const {
if (op != Opcode::Phi) {
throw LogicError("{} is not a Phi instruction", op);
}
if (index >= phi_args.size()) {
throw InvalidArgument("Out of bounds argument index {} in phi instruction");
}
return phi_args[index].first;
}
void Inst::AddPhiOperand(Block* predecessor, const Value& value) {
if (!value.IsImmediate()) {
Use(value);
}
phi_operands.emplace_back(predecessor, value);
phi_args.emplace_back(predecessor, value);
}
void Inst::Invalidate() {
@ -145,18 +181,22 @@ void Inst::Invalidate() {
}
void Inst::ClearArgs() {
for (auto& value : args) {
if (!value.IsImmediate()) {
UndoUse(value);
if (op == Opcode::Phi) {
for (auto& pair : phi_args) {
IR::Value& value{pair.second};
if (!value.IsImmediate()) {
UndoUse(value);
}
}
value = {};
}
for (auto& [phi_block, phi_op] : phi_operands) {
if (!phi_op.IsImmediate()) {
UndoUse(phi_op);
phi_args.clear();
} else {
for (auto& value : args) {
if (!value.IsImmediate()) {
UndoUse(value);
}
value = {};
}
}
phi_operands.clear();
}
void Inst::ReplaceUsesWith(Value replacement) {
@ -167,24 +207,29 @@ void Inst::ReplaceUsesWith(Value replacement) {
if (!replacement.IsImmediate()) {
Use(replacement);
}
args[0] = replacement;
if (op == Opcode::Phi) {
phi_args[0].second = replacement;
} else {
args[0] = replacement;
}
}
void Inst::Use(const Value& value) {
++value.Inst()->use_count;
Inst* const inst{value.Inst()};
++inst->use_count;
switch (op) {
case Opcode::GetZeroFromOp:
SetPseudoInstruction(value.Inst()->zero_inst, this);
SetPseudoInstruction(inst->zero_inst, this);
break;
case Opcode::GetSignFromOp:
SetPseudoInstruction(value.Inst()->sign_inst, this);
SetPseudoInstruction(inst->sign_inst, this);
break;
case Opcode::GetCarryFromOp:
SetPseudoInstruction(value.Inst()->carry_inst, this);
SetPseudoInstruction(inst->carry_inst, this);
break;
case Opcode::GetOverflowFromOp:
SetPseudoInstruction(value.Inst()->overflow_inst, this);
SetPseudoInstruction(inst->overflow_inst, this);
break;
default:
break;
@ -192,20 +237,21 @@ void Inst::Use(const Value& value) {
}
void Inst::UndoUse(const Value& value) {
--value.Inst()->use_count;
Inst* const inst{value.Inst()};
--inst->use_count;
switch (op) {
case Opcode::GetZeroFromOp:
RemovePseudoInstruction(value.Inst()->zero_inst, Opcode::GetZeroFromOp);
RemovePseudoInstruction(inst->zero_inst, Opcode::GetZeroFromOp);
break;
case Opcode::GetSignFromOp:
RemovePseudoInstruction(value.Inst()->sign_inst, Opcode::GetSignFromOp);
RemovePseudoInstruction(inst->sign_inst, Opcode::GetSignFromOp);
break;
case Opcode::GetCarryFromOp:
RemovePseudoInstruction(value.Inst()->carry_inst, Opcode::GetCarryFromOp);
RemovePseudoInstruction(inst->carry_inst, Opcode::GetCarryFromOp);
break;
case Opcode::GetOverflowFromOp:
RemovePseudoInstruction(value.Inst()->overflow_inst, Opcode::GetOverflowFromOp);
RemovePseudoInstruction(inst->overflow_inst, Opcode::GetOverflowFromOp);
break;
default:
break;