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r176918 - in /trunk/gcc: ChangeLog testsuite/Ch...


Author: rguenth
Date: Fri Jul 29 09:24:23 2011
New Revision: 176918

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176918
Log:
2011-07-29  Richard Guenther  <rguenther@suse.de>

	* tree-vrp.c (get_value_range): Only set parameter default
	definitions to varying, leave others at undefined.
	(extract_range_from_binary_expr): Fix undefined handling.
	(vrp_visit_phi_node): Handle merged undefined state.

	* gcc.dg/uninit-suppress.c: Also disable VRP.
	* gcc.dg/uninit-suppress_2.c: Likewise.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/uninit-suppress.c
    trunk/gcc/testsuite/gcc.dg/uninit-suppress_2.c
    trunk/gcc/tree-vrp.c


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