include/llvm/Transforms/Utils/BreakCriticalEdges.h

   1 //===- BreakCriticalEdges.h - Critical Edge Elimination Pass --------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // BreakCriticalEdges pass - Break all of the critical edges in the CFG by
  10 // inserting a dummy basic block.  This pass may be "required" by passes that
  11 // cannot deal with critical edges.  For this usage, the structure type is
  12 // forward declared.  This pass obviously invalidates the CFG, but can update
  13 // dominator trees.
  14 //
  15 //===----------------------------------------------------------------------===//
  16
  17 #ifndef LLVM_TRANSFORMS_UTILS_BREAKCRITICALEDGES_H
  18 #define LLVM_TRANSFORMS_UTILS_BREAKCRITICALEDGES_H
  19
  20 #include "llvm/IR/Function.h"
  21 #include "llvm/IR/PassManager.h"
  22
  23 namespace llvm {
  24 struct BreakCriticalEdgesPass : public PassInfoMixin<BreakCriticalEdgesPass> {
  25   PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
  26 };
  27 } // namespace llvm
  28 #endif // LLVM_TRANSFORMS_UTILS_BREAKCRITICALEDGES_H