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shader: preserve shared predicates during resource plan extraction

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Co-authored-by: netwarex <mail@pety.me>
This commit is contained in:
nmzik
2026-10-11 18:18:33 +02:00
parent f28c0fccb2
commit df0412afb5
2 changed files with 71 additions and 6 deletions
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src/graphics/shader/recompiler/ir/passes/ResourceMaterialization.cpp
+12 -6
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@@ -989,23 +989,29 @@ ResourcePlan ExtractResourcePlan(const Program& program) {
// Keep only that Boolean structure, never the varying shader dependency graph.
Value unknown;
bool capture_control_reads = false;
std::unordered_map<const Inst*, Value> predicates;
std::function<Value(Value)> ClonePredicate = [&](Value value) -> Value {
value = value.Resolve();
if (value.IsEmpty()) return {};
const auto* inst = value.TryInstruction();
if (inst == nullptr)
return ValidateRuntimeValue(program, value, RuntimeValueType::Integer) ? value : Value {};
// Preserve shared EXEC predicates, including subgraphs with no uniform factor.
const auto [found, inserted] = predicates.try_emplace(inst);
if (!inserted) return found->second;
auto& result = found->second;
if (ValidateRuntimeValue(program, value, RuntimeValueType::Integer)) {
capture_control_reads |=
!ValidateRuntimeValue(program, value, RuntimeValueType::ImmutableInteger);
return Clone(value);
return result = Clone(value);
}
const auto* inst = value.TryInstruction();
if (inst == nullptr) return {};
const auto op = inst->GetOpcode();
if (op == ValueOpcode::ConditionRef || op == ValueOpcode::LogicalNot) {
const auto operand = ClonePredicate(inst->Arg(0));
if (operand.IsEmpty() || op == ValueOpcode::ConditionRef) return operand;
if (operand.IsEmpty() || op == ValueOpcode::ConditionRef) return result = operand;
auto& node = plan.value_storage.emplace_back(op);
node.SetArg(0, operand);
return Value(&node);
return result = Value(&node);
}
if (op != ValueOpcode::LogicalAnd && op != ValueOpcode::LogicalOr) return {};
auto left = ClonePredicate(inst->Arg(0));
@@ -1019,7 +1025,7 @@ ResourcePlan ExtractResourcePlan(const Program& program) {
auto& node = plan.value_storage.emplace_back(op);
node.SetArg(0, left);
node.SetArg(1, right);
return Value(&node);
return result = Value(&node);
};
plan.control_flow = ResourceControlFlow(program, ClonePredicate);
plan.uniform_fill = AnalyzeUniformFill(program);