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