1 // Copyright (c) 2018 Google LLC.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "source/val/validate.h"
16
17 #include "source/val/function.h"
18 #include "source/val/validation_state.h"
19
20 namespace spvtools {
21 namespace val {
22
ValidateExecutionLimitations(ValidationState_t & _,const Instruction * inst)23 spv_result_t ValidateExecutionLimitations(ValidationState_t& _,
24 const Instruction* inst) {
25 if (inst->opcode() != SpvOpFunction) {
26 return SPV_SUCCESS;
27 }
28
29 const auto func = _.function(inst->id());
30 if (!func) {
31 return _.diag(SPV_ERROR_INTERNAL, inst)
32 << "Internal error: missing function id " << inst->id() << ".";
33 }
34
35 for (uint32_t entry_id : _.FunctionEntryPoints(inst->id())) {
36 const auto* models = _.GetExecutionModels(entry_id);
37 if (models) {
38 if (models->empty()) {
39 return _.diag(SPV_ERROR_INTERNAL, inst)
40 << "Internal error: empty execution models for function id "
41 << entry_id << ".";
42 }
43 for (const auto model : *models) {
44 std::string reason;
45 if (!func->IsCompatibleWithExecutionModel(model, &reason)) {
46 return _.diag(SPV_ERROR_INVALID_ID, inst)
47 << "OpEntryPoint Entry Point <id> '" << _.getIdName(entry_id)
48 << "'s callgraph contains function <id> "
49 << _.getIdName(inst->id())
50 << ", which cannot be used with the current execution "
51 "model:\n"
52 << reason;
53 }
54 }
55 }
56
57 std::string reason;
58 if (!func->CheckLimitations(_, _.function(entry_id), &reason)) {
59 return _.diag(SPV_ERROR_INVALID_ID, inst)
60 << "OpEntryPoint Entry Point <id> '" << _.getIdName(entry_id)
61 << "'s callgraph contains function <id> "
62 << _.getIdName(inst->id())
63 << ", which cannot be used with the current execution "
64 "modes:\n"
65 << reason;
66 }
67 }
68 return SPV_SUCCESS;
69 }
70
71 } // namespace val
72 } // namespace spvtools
73