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// Copyright 2022 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/lang/core/ir/loop.h"
#include <utility>
#include "src/tint/lang/core/ir/clone_context.h"
#include "src/tint/lang/core/ir/module.h"
#include "src/tint/lang/core/ir/multi_in_block.h"
#include "src/tint/utils/ice/ice.h"
TINT_INSTANTIATE_TYPEINFO(tint::core::ir::Loop);
namespace tint::core::ir {
Loop::Loop(ir::Block* i, ir::MultiInBlock* b, ir::MultiInBlock* c)
: initializer_(i), body_(b), continuing_(c) {
TINT_ASSERT(initializer_);
TINT_ASSERT(body_);
TINT_ASSERT(continuing_);
if (initializer_) {
initializer_->SetParent(this);
}
if (body_) {
body_->SetParent(this);
}
if (continuing_) {
continuing_->SetParent(this);
}
}
Loop::~Loop() = default;
Loop* Loop::Clone(CloneContext& ctx) {
auto* new_init = ctx.ir.blocks.Create<MultiInBlock>();
auto* new_body = ctx.ir.blocks.Create<MultiInBlock>();
auto* new_continuing = ctx.ir.blocks.Create<MultiInBlock>();
auto* new_loop = ctx.ir.instructions.Create<Loop>(new_init, new_body, new_continuing);
ctx.Replace(this, new_loop);
initializer_->CloneInto(ctx, new_init);
body_->CloneInto(ctx, new_body);
continuing_->CloneInto(ctx, new_continuing);
return new_loop;
}
void Loop::ForeachBlock(const std::function<void(ir::Block*)>& cb) {
if (initializer_) {
cb(initializer_);
}
if (body_) {
cb(body_);
}
if (continuing_) {
cb(continuing_);
}
}
bool Loop::HasInitializer() {
return initializer_->HasTerminator();
}
} // namespace tint::core::ir