SPIRV-Tools/source/reduce/reduction_opportunity_finder.cpp
Alastair Donaldson 5dcb576b69
spirv-reduce: Support reducing a specific function (#3774)
Motivated by integrating spirv-reduce into spirv-fuzz, so that an
added function can be made smaller during shrinking, this adds support
in spirv-reduce for asking reduction to be restricted to the
instructions of a single specified function.
2020-09-11 06:29:43 +01:00

35 lines
1.2 KiB
C++

// Copyright (c) 2020 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 "reduction_opportunity_finder.h"
namespace spvtools {
namespace reduce {
std::vector<opt::Function*> ReductionOpportunityFinder::GetTargetFunctions(
opt::IRContext* ir_context, uint32_t target_function) {
std::vector<opt::Function*> result;
for (auto& function : *ir_context->module()) {
if (!target_function || function.result_id() == target_function) {
result.push_back(&function);
}
}
assert((!target_function || !result.empty()) &&
"Requested target function must exist.");
return result;
}
} // namespace reduce
} // namespace spvtools