This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/64130] vrp: handle non zero constant divided by range cannot be zero.
- From: "kugan 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 Jun 2015 00:16:13 +0000
- Subject: [Bug tree-optimization/64130] vrp: handle non zero constant divided by range cannot be zero.
- Auto-submitted: auto-generated
- References: <bug-64130-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64130
--- Comment #11 from kugan at gcc dot gnu.org ---
Author: kugan
Date: Mon Jun 29 00:15:41 2015
New Revision: 225108
URL: https://gcc.gnu.org/viewcvs?rev=225108&root=gcc&view=rev
Log:
gcc/ChangeLog:
2015-06-29 Kugan Vivekanandarajah <kuganv@linaro.org>
PR middle-end/64130
* tree-vrp.c (extract_range_from_binary_expr_1): For unsigned
division, compute max and min when value ranges for dividend and
divisor are available.
gcc/testsuite/ChangeLog:
2015-06-29 Kugan Vivekanandarajah <kuganv@linaro.org>
PR middle-end/64130
* gcc.dg/tree-ssa/pr64130.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr64130.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vrp.c