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video_core/control_flow: Eliminate pessimizing moves
These can inhibit the ability of a compiler to perform RVO.
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d82b181d44
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25702b6256
@ -479,7 +479,7 @@ std::unique_ptr<ShaderCharacteristics> ScanFlow(const ProgramCode& program_code,
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auto result_out = std::make_unique<ShaderCharacteristics>();
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if (settings.depth == CompileDepth::BruteForce) {
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result_out->settings.depth = CompileDepth::BruteForce;
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return std::move(result_out);
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return result_out;
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}
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CFGRebuildState state{program_code, program_size, start_address};
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@ -490,7 +490,7 @@ std::unique_ptr<ShaderCharacteristics> ScanFlow(const ProgramCode& program_code,
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while (!state.inspect_queries.empty()) {
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if (!TryInspectAddress(state)) {
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result_out->settings.depth = CompileDepth::BruteForce;
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return std::move(result_out);
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return result_out;
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}
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}
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@ -535,9 +535,10 @@ std::unique_ptr<ShaderCharacteristics> ScanFlow(const ProgramCode& program_code,
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result_out->settings.depth = settings.depth;
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result_out->manager = std::move(manager);
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result_out->end = state.block_info.back().end + 1;
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return std::move(result_out);
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return result_out;
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}
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}
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result_out->start = start_address;
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result_out->settings.depth =
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use_flow_stack ? CompileDepth::FlowStack : CompileDepth::NoFlowStack;
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@ -557,8 +558,9 @@ std::unique_ptr<ShaderCharacteristics> ScanFlow(const ProgramCode& program_code,
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}
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if (!use_flow_stack) {
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result_out->labels = std::move(state.labels);
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return std::move(result_out);
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return result_out;
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}
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auto back = result_out->blocks.begin();
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auto next = std::next(back);
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while (next != result_out->blocks.end()) {
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@ -570,6 +572,7 @@ std::unique_ptr<ShaderCharacteristics> ScanFlow(const ProgramCode& program_code,
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back = next;
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++next;
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}
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return std::move(result_out);
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return result_out;
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}
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} // namespace VideoCommon::Shader
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