This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/68835] [5/6 Regression] ICE in set_value_range, at tree-vrp.c:387, with __int128 bit field
- 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: Thu, 17 Dec 2015 13:52:56 +0000
- Subject: [Bug tree-optimization/68835] [5/6 Regression] ICE in set_value_range, at tree-vrp.c:387, with __int128 bit field
- Auto-submitted: auto-generated
- References: <bug-68835-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68835
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Dec 17 13:52:25 2015
New Revision: 231757
URL: https://gcc.gnu.org/viewcvs?rev=231757&root=gcc&view=rev
Log:
PR tree-optimization/68835
* tree.c (get_int_cst_ext_nunits): Return
cst.get_precision () / HOST_BITS_PER_WIDE_INT + 1
for all unsigned wi::neg_p (cst) constants.
(build_new_int_cst): If cst.get_precision is not a multiple
of HOST_BITS_PER_WIDE_INT, zero extend -1 to the precision
% HOST_BITS_PER_WIDE_INT.
* gcc.dg/pr68835-1.c: New test.
* gcc.dg/pr68835-2.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/pr68835-1.c
trunk/gcc/testsuite/gcc.dg/pr68835-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree.c