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// Copyright (c) 2018 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/val/validate.h"
#include "source/val/function.h"
#include "source/val/validation_state.h"
namespace spvtools {
namespace val {
spv_result_t ValidateExecutionLimitations(ValidationState_t& _,
const Instruction* inst) {
if (inst->opcode() != spv::Op::OpFunction) {
return SPV_SUCCESS;
}
const auto func = _.function(inst->id());
if (!func) {
return _.diag(SPV_ERROR_INTERNAL, inst)
<< "Internal error: missing function id " << inst->id() << ".";
}
for (uint32_t entry_id : _.FunctionEntryPoints(inst->id())) {
const auto* models = _.GetExecutionModels(entry_id);
if (models) {
if (models->empty()) {
return _.diag(SPV_ERROR_INTERNAL, inst)
<< "Internal error: empty execution models for function id "
<< entry_id << ".";
}
for (const auto model : *models) {
std::string reason;
if (!func->IsCompatibleWithExecutionModel(model, &reason)) {
return _.diag(SPV_ERROR_INVALID_ID, inst)
<< "OpEntryPoint Entry Point <id> " << _.getIdName(entry_id)
<< "s callgraph contains function <id> "
<< _.getIdName(inst->id())
<< ", which cannot be used with the current execution "
"model:\n"
<< reason;
}
}
}
std::string reason;
if (!func->CheckLimitations(_, _.function(entry_id), &reason)) {
return _.diag(SPV_ERROR_INVALID_ID, inst)
<< "OpEntryPoint Entry Point <id> " << _.getIdName(entry_id)
<< "s callgraph contains function <id> " << _.getIdName(inst->id())
<< ", which cannot be used with the current execution "
"modes:\n"
<< reason;
}
}
return SPV_SUCCESS;
}
} // namespace val
} // namespace spvtools
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