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791b4351d1
This is done via a new extension, which in the future could also be used by shader authors as an escape hatch while we are still refining the analysis. The transform is run by the sanitizers for all of the non-WGSL backends. Bug: tint:880 Change-Id: Ibe90d7437d34c741a91eda65dff6d21d8469b9c7 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/88464 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Ben Clayton <bclayton@google.com>
71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
// Copyright 2022 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/tint/ast/enable.h"
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#include "src/tint/program_builder.h"
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#include "src/tint/sem/variable.h"
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TINT_INSTANTIATE_TYPEINFO(tint::ast::Enable);
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namespace tint::ast {
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Enable::ExtensionKind Enable::NameToKind(const std::string& name) {
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if (name == "chromium_experimental_dp4a") {
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return Enable::ExtensionKind::kChromiumExperimentalDP4a;
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}
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if (name == "chromium_disable_uniformity_analysis") {
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return Enable::ExtensionKind::kChromiumDisableUniformityAnalysis;
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}
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// The reserved internal extension name for testing
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if (name == "InternalExtensionForTesting") {
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return Enable::ExtensionKind::kInternalExtensionForTesting;
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}
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return Enable::ExtensionKind::kNotAnExtension;
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}
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std::string Enable::KindToName(ExtensionKind kind) {
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switch (kind) {
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case ExtensionKind::kChromiumExperimentalDP4a:
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return "chromium_experimental_dp4a";
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case ExtensionKind::kChromiumDisableUniformityAnalysis:
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return "chromium_disable_uniformity_analysis";
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// The reserved internal extension for testing
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case ExtensionKind::kInternalExtensionForTesting:
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return "InternalExtensionForTesting";
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case ExtensionKind::kNotAnExtension:
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// Return an empty string for kNotAnExtension
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return {};
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// No default case, as this switch must cover all ExtensionKind values.
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}
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// This return shall never get hit.
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return {};
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}
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Enable::Enable(ProgramID pid, const Source& src, const std::string& ext_name)
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: Base(pid, src), name(ext_name), kind(NameToKind(ext_name)) {}
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Enable::Enable(Enable&&) = default;
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Enable::~Enable() = default;
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const Enable* Enable::Clone(CloneContext* ctx) const {
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auto src = ctx->Clone(source);
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return ctx->dst->create<Enable>(src, name);
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}
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} // namespace tint::ast
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