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b349710476
Added a new transform::RemoveContinueInSwitch that replaces continue statements in switch cases with setting a bool variable, and checking if the variable is set after the switch to continue. Bug: tint:1080 Change-Id: I3c0a6c790e1bb612fac3f927a4bd5beb2d0d4ed1 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/84960 Reviewed-by: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Antonio Maiorano <amaiorano@google.com>
56 lines
2.1 KiB
C++
56 lines
2.1 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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#ifndef SRC_TINT_TRANSFORM_REMOVE_CONTINUE_IN_SWITCH_H_
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#define SRC_TINT_TRANSFORM_REMOVE_CONTINUE_IN_SWITCH_H_
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#include "src/tint/transform/transform.h"
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namespace tint::transform {
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/// This transform replaces continue statements in switch cases with setting a
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/// bool variable, and checking if the variable is set after the switch to
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/// continue. It is necessary to work around FXC "error X3708: continue cannot
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/// be used in a switch". See crbug.com/tint/1080.
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class RemoveContinueInSwitch
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: public Castable<RemoveContinueInSwitch, Transform> {
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public:
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/// Constructor
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RemoveContinueInSwitch();
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/// Destructor
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~RemoveContinueInSwitch() override;
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protected:
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/// @param program the program to inspect
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/// @param data optional extra transform-specific input data
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/// @returns true if this transform should be run for the given program
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bool ShouldRun(const Program* program,
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const DataMap& data = {}) const override;
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/// Runs the transform using the CloneContext built for transforming a
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/// program. Run() is responsible for calling Clone() on the CloneContext.
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/// @param ctx the CloneContext primed with the input program and
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/// ProgramBuilder
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/// @param inputs optional extra transform-specific input data
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/// @param outputs optional extra transform-specific output data
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void Run(CloneContext& ctx,
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const DataMap& inputs,
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DataMap& outputs) const override;
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};
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} // namespace tint::transform
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#endif // SRC_TINT_TRANSFORM_REMOVE_CONTINUE_IN_SWITCH_H_
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