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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/sem/vector.h"
#include "src/tint/program_builder.h"
#include "src/tint/utils/hash.h"
TINT_INSTANTIATE_TYPEINFO(tint::sem::Vector);
namespace tint::sem {
Vector::Vector(Type const* subtype, uint32_t width)
: Base(TypeFlags{
Flag::kConstructable,
Flag::kCreationFixedFootprint,
Flag::kFixedFootprint,
}),
subtype_(subtype),
width_(width) {
TINT_ASSERT(Semantic, width_ > 1);
TINT_ASSERT(Semantic, width_ < 5);
}
Vector::Vector(Vector&&) = default;
Vector::~Vector() = default;
size_t Vector::Hash() const {
return utils::Hash(TypeInfo::Of<Vector>().full_hashcode, width_, subtype_);
}
bool Vector::Equals(const Type& other) const {
if (auto* v = other.As<Vector>()) {
return v->width_ == width_ && v->subtype_ == subtype_;
}
return false;
}
std::string Vector::FriendlyName(const SymbolTable& symbols) const {
std::ostringstream out;
out << "vec" << width_ << "<" << subtype_->FriendlyName(symbols) << ">";
return out.str();
}
uint32_t Vector::Size() const {
return subtype_->Size() * width_;
}
uint32_t Vector::Align() const {
switch (width_) {
case 2:
return subtype_->Size() * 2;
case 3:
return subtype_->Size() * 4;
case 4:
return subtype_->Size() * 4;
}
return 0; // Unreachable
}
} // namespace tint::sem