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https://github.com/encounter/dawn-cmake.git
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62bfd318ae
This patch: 1. Add the `f16` WGSL extension. 2. Add `f16` as keyword, and remove it from reserved word list. 3. Add ast::f16 and sem::f16, and implement validation that using `f16` type must be with `f16` extension enabled. 4. Add `Number<NumberKindF16>` for f16 literal and constant, and add `ast::FloatLiteralExpression::Suffix::kH`. 5. Add placeholder in all writer which report error when try to emit f16 type. Bugs: tint:1473, tint:1502 Change-Id: Ifb363beeb2699ed7cac57e07227d1b2cfa8050b4 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89922 Reviewed-by: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
75 lines
2.5 KiB
C++
75 lines
2.5 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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if (name == "f16") {
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return Enable::ExtensionKind::kF16;
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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::kNoExtension;
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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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case ExtensionKind::kF16:
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return "f16";
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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::kNoExtension:
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// Return an empty string for kNoExtension
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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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