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f0d110e305
Some reduction opportunities don't invalidate all analyses. This PR fixes the situation (although we might invalidate more analyses than required).
42 lines
1.4 KiB
C++
42 lines
1.4 KiB
C++
// Copyright (c) 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "source/reduce/remove_function_reduction_opportunity.h"
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#include "source/opt/eliminate_dead_functions_util.h"
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namespace spvtools {
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namespace reduce {
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bool RemoveFunctionReductionOpportunity::PreconditionHolds() {
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// Removing one function cannot influence whether another function can be
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// removed.
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return true;
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}
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void RemoveFunctionReductionOpportunity::Apply() {
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for (opt::Module::iterator function_it = context_->module()->begin();
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function_it != context_->module()->end(); ++function_it) {
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if (&*function_it == function_) {
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function_it.Erase();
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context_->InvalidateAnalysesExceptFor(opt::IRContext::kAnalysisNone);
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return;
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}
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}
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assert(0 && "Function to be removed was not found.");
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}
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} // namespace reduce
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} // namespace spvtools
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