r133341 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Wed Mar 19 10:44:52 2008
New Revision: 133341

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133341
Log:
2008-03-19  Richard Guenther  <rguenther@suse.de>

	PR middle-end/35609
	* tree-ssa.c (always_executed): New global flag.
	(warn_uninitialized_var): If !always_executed warn with "maybe"
	instead of "is".
	(execute_early_warn_uninitialized): Compute post-dominators.
	Initialize always_executed before processing each basic block.

	* gcc.dg/testsuite/uninit-15.c: New testcase.
	* gcc.dg/testsuite/uninit-16.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.dg/uninit-15.c
    trunk/gcc/testsuite/gcc.dg/uninit-16.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa.c