mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-25 21:10:04 +00:00
3345fe6a9d
* Extracted useful functionality from block merger and exposed it as stand-alone methods. * Separated these methods into a utility file.
45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
// Copyright (c) 2017 The Khronos Group Inc.
|
|
// Copyright (c) 2017 Valve Corporation
|
|
// Copyright (c) 2017 LunarG Inc.
|
|
// Copyright (c) 2019 Google LLC
|
|
//
|
|
// 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.
|
|
|
|
#ifndef SOURCE_OPT_BLOCK_MERGE_UTIL_H_
|
|
#define SOURCE_OPT_BLOCK_MERGE_UTIL_H_
|
|
|
|
#include "source/opt/ir_context.h"
|
|
|
|
namespace spvtools {
|
|
namespace opt {
|
|
|
|
// Provides functions for determining when it is safe to merge blocks, and for
|
|
// actually merging blocks, for use by various analyses and passes.
|
|
namespace blockmergeutil {
|
|
|
|
// Returns true if and only if |block| has exactly one successor and merging
|
|
// this successor into |block| has no impact on the semantics or validity of the
|
|
// SPIR-V module.
|
|
bool CanMergeWithSuccessor(IRContext* context, BasicBlock* block);
|
|
|
|
// Requires that |bi| has a successor that can be safely merged into |bi|, and
|
|
// performs the merge.
|
|
void MergeWithSuccessor(IRContext* context, Function* func,
|
|
Function::iterator bi);
|
|
|
|
} // namespace blockmergeutil
|
|
} // namespace opt
|
|
} // namespace spvtools
|
|
|
|
#endif // SOURCE_OPT_BLOCK_MERGE_UTIL_H_
|