+/// createLoopExtractorPass - This pass extracts all natural loops from the
+/// program into a function if it can.
+///
+Pass *createLoopExtractorPass();
+
+/// createSingleLoopExtractorPass - This pass extracts one natural loop from the
+/// program into a function if it can. This is used by bugpoint.
+///
+Pass *createSingleLoopExtractorPass();
+
+/// createBlockExtractorPass - This pass extracts all blocks (except those
+/// specified in the argument list) from the functions in the module.
+///
+ModulePass *createBlockExtractorPass();
+
+/// createStripDeadPrototypesPass - This pass removes any function declarations
+/// (prototypes) that are not used.
+ModulePass *createStripDeadPrototypesPass();
+
+//===----------------------------------------------------------------------===//
+/// createFunctionAttrsPass - This pass discovers functions that do not access
+/// memory, or only read memory, and gives them the readnone/readonly attribute.
+/// It also discovers function arguments that are not captured by the function
+/// and marks them with the nocapture attribute.
+///
+Pass *createFunctionAttrsPass();