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shader_recompiler: a simple bfs in image arg producer search

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psucien 2024-06-29 17:53:03 +02:00 committed by georgemoralis
parent c4061c3b95
commit cc945fb92e
1 changed files with 21 additions and 5 deletions
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26
src/shader_recompiler/ir/passes/resource_tracking_pass.cpp
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@ -2,7 +2,9 @@
// SPDX-License-Identifier: GPL-2.0-or-later
#include <algorithm>
#include <deque>
#include <boost/container/small_vector.hpp>
#include "shader_recompiler/ir/basic_block.h"
#include "shader_recompiler/ir/ir_emitter.h"
#include "shader_recompiler/ir/program.h"
@ -250,11 +252,25 @@ IR::Value PatchCubeCoord(IR::IREmitter& ir, const IR::Value& s, const IR::Value&
}
void PatchImageInstruction(IR::Block& block, IR::Inst& inst, Info& info, Descriptors& descriptors) {
IR::Inst* producer = inst.Arg(0).InstRecursive();
ASSERT(producer->GetOpcode() ==
IR::Opcode::CompositeConstructU32x2 || // IMAGE_SAMPLE (image+sampler)
producer->GetOpcode() == IR::Opcode::ReadConst || // IMAGE_LOAD (image only)
producer->GetOpcode() == IR::Opcode::GetUserData);
std::deque<IR::Inst*> insts{&inst};
const auto& pred = [](auto opcode) -> bool {
return (opcode == IR::Opcode::CompositeConstructU32x2 || // IMAGE_SAMPLE (image+sampler)
opcode == IR::Opcode::ReadConst || // IMAGE_LOAD (image only)
opcode == IR::Opcode::GetUserData);
};
IR::Inst* producer{};
while (!insts.empty() && (producer = insts.front(), !pred(producer->GetOpcode()))) {
for (auto arg_idx = 0u; arg_idx < producer->NumArgs(); ++arg_idx) {
const auto arg = producer->Arg(arg_idx);
if (arg.TryInstRecursive()) {
insts.push_back(arg.InstRecursive());
}
}
insts.pop_front();
}
ASSERT(pred(producer->GetOpcode()));
const auto [tsharp_handle, ssharp_handle] = [&] -> std::pair<IR::Inst*, IR::Inst*> {
if (producer->GetOpcode() == IR::Opcode::CompositeConstructU32x2) {
return std::make_pair(producer->Arg(0).InstRecursive(),