SPIRV-Tools/source/val/validate_mode_setting.cpp
Alan Baker 714bf84e58 Split mode setting opcode validation into new file.
* Moved mode setting opcode validation out of idUsage and into a new
pass
 * minor style updates
2018-08-08 15:45:53 -04:00

92 lines
3.2 KiB
C++

// 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 <algorithm>
#include "source/opcode.h"
#include "source/val/instruction.h"
#include "source/val/validation_state.h"
namespace spvtools {
namespace val {
namespace {
spv_result_t ValidateEntryPoint(ValidationState_t& _, const Instruction* inst) {
const auto entry_point_id = inst->GetOperandAs<uint32_t>(1);
auto entry_point = _.FindDef(entry_point_id);
if (!entry_point || SpvOpFunction != entry_point->opcode()) {
return _.diag(SPV_ERROR_INVALID_ID, inst)
<< "OpEntryPoint Entry Point <id> '" << _.getIdName(entry_point_id)
<< "' is not a function.";
}
// don't check kernel function signatures
const SpvExecutionModel execution_model =
inst->GetOperandAs<SpvExecutionModel>(0);
if (execution_model != SpvExecutionModelKernel) {
// TODO: Check the entry point signature is void main(void), may be subject
// to change
const auto entry_point_type_id = entry_point->GetOperandAs<uint32_t>(3);
const auto entry_point_type = _.FindDef(entry_point_type_id);
if (!entry_point_type || 3 != entry_point_type->words().size()) {
return _.diag(SPV_ERROR_INVALID_ID, inst)
<< "OpEntryPoint Entry Point <id> '" << _.getIdName(entry_point_id)
<< "'s function parameter count is not zero.";
}
}
auto return_type = _.FindDef(entry_point->type_id());
if (!return_type || SpvOpTypeVoid != return_type->opcode()) {
return _.diag(SPV_ERROR_INVALID_ID, inst)
<< "OpEntryPoint Entry Point <id> '" << _.getIdName(entry_point_id)
<< "'s function return type is not void.";
}
return SPV_SUCCESS;
}
spv_result_t ValidateExecutionMode(ValidationState_t& _,
const Instruction* inst) {
const auto entry_point_id = inst->GetOperandAs<uint32_t>(0);
const auto found = std::find(_.entry_points().cbegin(),
_.entry_points().cend(), entry_point_id);
if (found == _.entry_points().cend()) {
return _.diag(SPV_ERROR_INVALID_ID, inst)
<< "OpExecutionMode Entry Point <id> '"
<< _.getIdName(entry_point_id)
<< "' is not the Entry Point "
"operand of an OpEntryPoint.";
}
return SPV_SUCCESS;
}
} // namespace
spv_result_t ModeSettingPass(ValidationState_t& _, const Instruction* inst) {
switch (inst->opcode()) {
case SpvOpEntryPoint:
if (auto error = ValidateEntryPoint(_, inst)) return error;
break;
case SpvOpExecutionMode:
if (auto error = ValidateExecutionMode(_, inst)) return error;
break;
default:
break;
}
return SPV_SUCCESS;
}
} // namespace val
} // namespace spvtools