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275eb7e4e4
Perform a program clone at the end of parsing to remove any unreachable AST nodes. Actually fixing the parser to never create these looks like a huge amount of work. Fixed: tint:749 Change-Id: Ib956634257e0933c9702d6be22f79942f7cf4c51 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49520 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: James Price <jrprice@google.com> Commit-Queue: Ben Clayton <bclayton@google.com>
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/reader/spirv/parser.h"
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#include <utility>
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#include "src/reader/spirv/parser_impl.h"
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namespace tint {
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namespace reader {
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namespace spirv {
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Program Parse(const std::vector<uint32_t>& input) {
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ParserImpl parser(input);
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bool parsed = parser.Parse();
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ProgramBuilder& builder = parser.builder();
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if (!parsed) {
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// TODO(bclayton): Migrate spirv::ParserImpl to using diagnostics.
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builder.Diagnostics().add_error(parser.error());
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return Program(std::move(builder));
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}
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// The SPIR-V parser can construct disjoint AST nodes, which is invalid for
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// the Resolver. Clone the Program to clean these up.
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builder.SetResolveOnBuild(false);
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Program program_with_disjoint_ast(std::move(builder));
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ProgramBuilder output;
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CloneContext(&output, &program_with_disjoint_ast, false).Clone();
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return Program(std::move(output));
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}
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} // namespace spirv
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} // namespace reader
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} // namespace tint
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