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71f619b6f1
Move the bulk of the constant evaulation logic out of transform::FoldConstants and into Resolver and sem::Expression. transform::FoldConstants now replace TypeConstructor nodes that have a constant value on the expression. This is ground work to: * Cleaning up the HLSL uniform buffer indexing, which is `/` and `%` arithmatic heavy * Prepares us to handle `constexpr` when it lands in the spec * Provide a centralized place to do constant evaluation, instead of the having similar logic scattered around the codebase. Change-Id: I3e2f542be692046a8d243b62a82556db519953e7 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57426 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Antonio Maiorano <amaiorano@google.com> Reviewed-by: James Price <jrprice@google.com>
57 lines
1.7 KiB
C++
57 lines
1.7 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/ast/vector.h"
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#include "src/program_builder.h"
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TINT_INSTANTIATE_TYPEINFO(tint::ast::Vector);
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namespace tint {
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namespace ast {
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Vector::Vector(ProgramID program_id,
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const Source& source,
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Type const* subtype,
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uint32_t size)
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: Base(program_id, source), subtype_(subtype), size_(size) {
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TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, subtype, program_id);
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TINT_ASSERT(AST, size_ > 1);
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TINT_ASSERT(AST, size_ < 5);
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}
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Vector::Vector(Vector&&) = default;
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Vector::~Vector() = default;
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std::string Vector::type_name() const {
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return "__vec_" + std::to_string(size_) + subtype_->type_name();
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}
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std::string Vector::FriendlyName(const SymbolTable& symbols) const {
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std::ostringstream out;
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out << "vec" << size_ << "<" << subtype_->FriendlyName(symbols) << ">";
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return out.str();
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}
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Vector* Vector::Clone(CloneContext* ctx) const {
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// Clone arguments outside of create() call to have deterministic ordering
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auto src = ctx->Clone(source());
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auto* ty = ctx->Clone(type());
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return ctx->dst->create<Vector>(src, ty, size_);
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}
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} // namespace ast
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} // namespace tint
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