+//===----------------------------------------------------------------------===//
+//
+// BreakCriticalEdges pass - Break all of the critical edges in the CFG by
+// inserting a dummy basic block. This pass may be "required" by passes that
+// cannot deal with critical edges. For this usage, a pass must call:
+//
+// AU.addRequiredID(BreakCriticalEdgesID);
+//
+// This pass obviously invalidates the CFG, but can update forward dominator
+// (set, immediate dominators, tree, and frontier) information.
+//
+FunctionPass *createBreakCriticalEdgesPass();
+extern const PassInfo *BreakCriticalEdgesID;
+
+//===----------------------------------------------------------------------===//
+//
+// LoopSimplify pass - Insert Pre-header blocks into the CFG for every function
+// in the module. This pass updates dominator information, loop information,
+// and does not add critical edges to the CFG.
+//
+// AU.addRequiredID(LoopSimplifyID);
+//
+FunctionPass *createLoopSimplifyPass();
+extern const PassInfo *LoopSimplifyID;
+
+//===----------------------------------------------------------------------===//
+// This pass converts SelectInst instructions into conditional branch and PHI
+// instructions. If the OnlyFP flag is set to true, then only floating point
+// select instructions are lowered.
+//
+FunctionPass *createLowerSelectPass(bool OnlyFP = false);
+extern const PassInfo *LowerSelectID;
+
+//===----------------------------------------------------------------------===//
+//
+// LowerAllocations Pass - Turn malloc and free instructions into %malloc and
+// %free calls.
+//
+// AU.addRequiredID(LowerAllocationsID);
+//
+FunctionPass *createLowerAllocationsPass(bool LowerMallocArgToInteger = false);
+extern const PassInfo *LowerAllocationsID;