Revert:

	Revert:

	2008-09-18  Andrew Pinski  <andrew_pinski@playstation.sony.com>

	PR rtl-opt/37451
	* loop-doloop.c (doloop_modify): New argument zero_extend_p and
	zero extend count after the correction to it is done.
	(doloop_optimize): Update call to doloop_modify, don't zero extend
	count before call.

	2008-11-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>

	PR rtl-opt/37782
	* loop-doloop.c (doloop_modify): Add from_mode argument that says what
	mode count is in.
	(doloop_optimize): Update call to doloop_modify.

testsuite:
	* gcc.c-torture/execute/doloop-1.c,
	gcc.c-torture/execute/doloop-2.c: New tests.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@183071 138bc75d-0d04-0410-961f-82ee72b054a4