-// createDeadArgEliminationPass - This pass removes arguments from functions
-// which are not used by the body of the function. If
-// DeleteFromExternalFunctions is true, the pass will modify functions that have
-// external linkage, which is not usually safe (this is used by bugpoint to
-// reduce testcases).
-//
-Pass *createDeadArgEliminationPass(bool DeleteFromExternalFunctions=false);
+/// createDeadArgEliminationPass - This pass removes arguments from functions
+/// which are not used by the body of the function.
+///
+ModulePass *createDeadArgEliminationPass();
+
+/// DeadArgHacking pass - Same as DAE, but delete arguments of external
+/// functions as well. This is definitely not safe, and should only be used by
+/// bugpoint.
+ModulePass *createDeadArgHackingPass();
+
+//===----------------------------------------------------------------------===//
+/// createArgumentPromotionPass - This pass promotes "by reference" arguments to
+/// be passed by value if the number of elements passed is smaller or
+/// equal to maxElements (maxElements == 0 means always promote).
+///
+Pass *createArgumentPromotionPass(unsigned maxElements = 3);
+
+//===----------------------------------------------------------------------===//
+/// createIPConstantPropagationPass - This pass propagates constants from call
+/// sites into the bodies of functions.
+///
+ModulePass *createIPConstantPropagationPass();
+
+//===----------------------------------------------------------------------===//
+/// createIPSCCPPass - This pass propagates constants from call sites into the
+/// bodies of functions, and keeps track of whether basic blocks are executable
+/// in the process.
+///
+ModulePass *createIPSCCPPass();