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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.
- // Validates correctness of barrier SPIR-V instructions.
- #include "source/val/validate.h"
- #include <string>
- #include "source/diagnostic.h"
- #include "source/opcode.h"
- #include "source/spirv_constant.h"
- #include "source/spirv_target_env.h"
- #include "source/util/bitutils.h"
- #include "source/val/instruction.h"
- #include "source/val/validate_memory_semantics.h"
- #include "source/val/validate_scopes.h"
- #include "source/val/validation_state.h"
- namespace spvtools {
- namespace val {
- // Validates correctness of barrier instructions.
- spv_result_t BarriersPass(ValidationState_t& _, const Instruction* inst) {
- const SpvOp opcode = inst->opcode();
- const uint32_t result_type = inst->type_id();
- switch (opcode) {
- case SpvOpControlBarrier: {
- if (spvVersionForTargetEnv(_.context()->target_env) <
- SPV_SPIRV_VERSION_WORD(1, 3)) {
- _.function(inst->function()->id())
- ->RegisterExecutionModelLimitation(
- [](SpvExecutionModel model, std::string* message) {
- if (model != SpvExecutionModelTessellationControl &&
- model != SpvExecutionModelGLCompute &&
- model != SpvExecutionModelKernel &&
- model != SpvExecutionModelTaskNV &&
- model != SpvExecutionModelMeshNV) {
- if (message) {
- *message =
- "OpControlBarrier requires one of the following "
- "Execution "
- "Models: TessellationControl, GLCompute or Kernel";
- }
- return false;
- }
- return true;
- });
- }
- const uint32_t execution_scope = inst->word(1);
- const uint32_t memory_scope = inst->word(2);
- if (auto error = ValidateExecutionScope(_, inst, execution_scope)) {
- return error;
- }
- if (auto error = ValidateMemoryScope(_, inst, memory_scope)) {
- return error;
- }
- if (auto error = ValidateMemorySemantics(_, inst, 2)) {
- return error;
- }
- break;
- }
- case SpvOpMemoryBarrier: {
- const uint32_t memory_scope = inst->word(1);
- if (auto error = ValidateMemoryScope(_, inst, memory_scope)) {
- return error;
- }
- if (auto error = ValidateMemorySemantics(_, inst, 1)) {
- return error;
- }
- break;
- }
- case SpvOpNamedBarrierInitialize: {
- if (_.GetIdOpcode(result_type) != SpvOpTypeNamedBarrier) {
- return _.diag(SPV_ERROR_INVALID_DATA, inst)
- << spvOpcodeString(opcode)
- << ": expected Result Type to be OpTypeNamedBarrier";
- }
- const uint32_t subgroup_count_type = _.GetOperandTypeId(inst, 2);
- if (!_.IsIntScalarType(subgroup_count_type) ||
- _.GetBitWidth(subgroup_count_type) != 32) {
- return _.diag(SPV_ERROR_INVALID_DATA, inst)
- << spvOpcodeString(opcode)
- << ": expected Subgroup Count to be a 32-bit int";
- }
- break;
- }
- case SpvOpMemoryNamedBarrier: {
- const uint32_t named_barrier_type = _.GetOperandTypeId(inst, 0);
- if (_.GetIdOpcode(named_barrier_type) != SpvOpTypeNamedBarrier) {
- return _.diag(SPV_ERROR_INVALID_DATA, inst)
- << spvOpcodeString(opcode)
- << ": expected Named Barrier to be of type OpTypeNamedBarrier";
- }
- const uint32_t memory_scope = inst->word(2);
- if (auto error = ValidateMemoryScope(_, inst, memory_scope)) {
- return error;
- }
- if (auto error = ValidateMemorySemantics(_, inst, 2)) {
- return error;
- }
- break;
- }
- default:
- break;
- }
- return SPV_SUCCESS;
- }
- } // namespace val
- } // namespace spvtools
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