This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/57083] [4.8/4.9 Regression] Wrong constant folding
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 29 Apr 2013 08:34:32 +0000
- Subject: [Bug tree-optimization/57083] [4.8/4.9 Regression] Wrong constant folding
- Auto-submitted: auto-generated
- References: <bug-57083-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57083
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-04-29 08:34:32 UTC ---
Author: jakub
Date: Mon Apr 29 07:55:09 2013
New Revision: 198388
URL: http://gcc.gnu.org/viewcvs?rev=198388&root=gcc&view=rev
Log:
PR tree-optimization/57083
* tree-vrp.c (extract_range_from_binary_expr_1): For LSHIFT_EXPR with
non-singleton shift count range, zero extend low_bound for uns case.
* gcc.dg/torture/pr57083.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr57083.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vrp.c
Author: jakub
Date: Mon Apr 29 07:57:02 2013
New Revision: 198389
URL: http://gcc.gnu.org/viewcvs?rev=198389&root=gcc&view=rev
Log:
PR tree-optimization/57083
* tree-vrp.c (extract_range_from_binary_expr_1): For LSHIFT_EXPR with
non-singleton shift count range, zero extend low_bound for uns case.
* gcc.dg/torture/pr57083.c: New test.
Added:
branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/torture/pr57083.c
Modified:
branches/gcc-4_8-branch/gcc/ChangeLog
branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
branches/gcc-4_8-branch/gcc/tree-vrp.c