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545c9742d5
In C++ argument evaluation order is undefined. MSVC and Clang evaluate these in different orders, leading to hilarity when writing tests that expect a deterministic ordering. Pull out all the argument expressions to create() in the clone functions so a cloned program is deterministic in its ordering between compilers. Change-Id: I8e2de31398960c480ce7ee1dfaac4f67652d2dbc Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/41544 Commit-Queue: Ben Clayton <bclayton@google.com> Reviewed-by: dan sinclair <dsinclair@chromium.org> Auto-Submit: Ben Clayton <bclayton@google.com>
60 lines
2.0 KiB
C++
60 lines
2.0 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/bitcast_expression.h"
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#include "src/clone_context.h"
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#include "src/program_builder.h"
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TINT_INSTANTIATE_CLASS_ID(tint::ast::BitcastExpression);
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namespace tint {
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namespace ast {
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BitcastExpression::BitcastExpression(const Source& source,
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type::Type* type,
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Expression* expr)
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: Base(source), type_(type), expr_(expr) {}
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BitcastExpression::BitcastExpression(BitcastExpression&&) = default;
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BitcastExpression::~BitcastExpression() = default;
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BitcastExpression* BitcastExpression::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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auto* e = ctx->Clone(expr_);
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return ctx->dst->create<BitcastExpression>(src, ty, e);
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}
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bool BitcastExpression::IsValid() const {
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if (expr_ == nullptr || !expr_->IsValid())
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return false;
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return type_ != nullptr;
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}
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void BitcastExpression::to_str(const semantic::Info& sem,
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std::ostream& out,
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size_t indent) const {
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make_indent(out, indent);
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out << "Bitcast[" << result_type_str(sem) << "]<" << type_->type_name()
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<< ">{" << std::endl;
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expr_->to_str(sem, out, indent + 2);
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make_indent(out, indent);
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out << "}" << std::endl;
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}
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} // namespace ast
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} // namespace tint
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