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[Bug tree-optimization/35609] [4.3 Regression] "is used uninitialized in this function" should be may warning
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 25 Mar 2008 10:10:13 -0000
- Subject: [Bug tree-optimization/35609] [4.3 Regression] "is used uninitialized in this function" should be may warning
- References: <bug-35609-9876@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #7 from rguenth at gcc dot gnu dot org 2008-03-25 10:10 -------
Subject: Bug 35609
Author: rguenth
Date: Tue Mar 25 10:09:22 2008
New Revision: 133507
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133507
Log:
2008-03-25 Richard Guenther <rguenther@suse.de>
Backport from mainline:
2008-03-19 Richard Guenther <rguenther@suse.de>
PR middle-end/35609
* tree-ssa.c (walk_data): New structure.
(warn_uninitialized_var): If not 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:
branches/gcc-4_3-branch/gcc/testsuite/gcc.dg/uninit-15.c
- copied unchanged from r133341, trunk/gcc/testsuite/gcc.dg/uninit-15.c
branches/gcc-4_3-branch/gcc/testsuite/gcc.dg/uninit-16.c
- copied unchanged from r133341, trunk/gcc/testsuite/gcc.dg/uninit-16.c
Modified:
branches/gcc-4_3-branch/gcc/ChangeLog
branches/gcc-4_3-branch/gcc/testsuite/ChangeLog
branches/gcc-4_3-branch/gcc/tree-ssa.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35609