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[Bug middle-end/71762] [5/6 Regression] ~X & Y to X < Y doesn't work for uninitialized values
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 24 Nov 2016 09:45:33 +0000
- Subject: [Bug middle-end/71762] [5/6 Regression] ~X & Y to X < Y doesn't work for uninitialized values
- Auto-submitted: auto-generated
- References: <bug-71762-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71762
--- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Nov 24 09:45:01 2016
New Revision: 242822
URL: https://gcc.gnu.org/viewcvs?rev=242822&root=gcc&view=rev
Log:
2016-11-23 Richard Biener <rguenther@suse.de>
PR middle-end/71762
* match.pd ((~X & Y) -> X < Y, (X & ~Y) -> Y < X,
(~X | Y) -> X <= Y, (X | ~Y) -> Y <= X): Remove.
* gcc.dg/torture/pr71762-1.c: New testcase.
* gcc.dg/torture/pr71762-2.c: Likewise.
* gcc.dg/torture/pr71762-3.c: Likewise.
* gcc.dg/tree-ssa/forwprop-28.c: XFAIL.
Modified:
trunk/gcc/testsuite/gcc.dg/tree-ssa/forwprop-28.c