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shader: capture only memory-dependent resource predicates

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This commit is contained in:
nmzik
2026-10-09 15:04:01 +02:00
parent 488c0acae9
commit 3b1a94707a
4 changed files with 36 additions and 23 deletions
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src/graphics/shader/recompiler/ir/passes/ResourceMaterialization.cpp
+7 -2
View File
@@ -1007,10 +1007,15 @@ ResourcePlan ExtractResourcePlan(const Program& program) {
// A proven uniform factor can decide a branch even when its other lanes are unknown.
// Keep only that Boolean structure, never the varying shader dependency graph.
Value unknown;
bool capture_control_reads = false;
std::function<Value(Value)> ClonePredicate = [&](Value value) -> Value {
value = value.Resolve();
if (value.IsEmpty()) return {};
if (ValidateRuntimeValue(program, value, RuntimeValueType::Integer)) return Clone(value);
if (ValidateRuntimeValue(program, value, RuntimeValueType::Integer)) {
capture_control_reads |=
!ValidateRuntimeValue(program, value, RuntimeValueType::ImmutableInteger);
return Clone(value);
}
const auto* inst = value.TryInstruction();
if (inst == nullptr) return {};
const auto op = inst->GetOpcode();
@@ -1040,7 +1045,7 @@ ResourcePlan ExtractResourcePlan(const Program& program) {
for (uint32_t i = 0; i < plan.uniform_fill.fill.words; ++i) {
plan.uniform_fill.values[i] = Clone(plan.uniform_fill.values[i]);
}
plan.capture_specialization_reads |= capture_indirect_reads || !plan.control_flow.empty();
plan.capture_specialization_reads |= capture_indirect_reads || capture_control_reads;
if (plan.capture_specialization_reads) {
// Every former flat alias now targets its retained raw read. Mark those reads
// on the normalized graph, so discarded Phi/EXEC dependencies stay discarded.
src/graphics/shader/recompiler/ir/passes/SrtWalker.cpp
+2 -1
View File
@@ -966,7 +966,8 @@ bool SrtWalker::RefreshFlatBuffer(std::vector<uint32_t>& flat) {
}
uint32_t condition = 0;
auto& predicate = m_clean_evaluator != nullptr ? *m_clean_evaluator : *this;
if (!block.condition.IsEmpty() && m_runtime.read_specialization_memory != nullptr &&
if (!block.condition.IsEmpty() &&
(m_runtime.read_specialization_memory != nullptr || !m_program.capture_specialization_reads) &&
predicate.Evaluate(block.condition, condition)) {
pending.push_back(block.successors[condition != 0u ? 0u : 1u]);
} else {