This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/70354] [6 Regression] Wrong code with -O3 -march=broadwell and -march=skylake-avx512.
- 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: Wed, 23 Mar 2016 09:52:31 +0000
- Subject: [Bug tree-optimization/70354] [6 Regression] Wrong code with -O3 -march=broadwell and -march=skylake-avx512.
- Auto-submitted: auto-generated
- References: <bug-70354-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70354
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Mar 23 09:52:00 2016
New Revision: 234417
URL: https://gcc.gnu.org/viewcvs?rev=234417&root=gcc&view=rev
Log:
PR tree-optimization/70354
* tree-vect-patterns.c (vect_recog_vector_vector_shift_pattern): If
oprnd0 is wider than oprnd1 and there is a cast from the wider
type to oprnd1, mask it with the mask of the narrower type.
* gcc.dg/vect/pr70354-1.c: New test.
* gcc.dg/vect/pr70354-2.c: New test.
* gcc.target/i386/avx2-pr70354-1.c: New test.
* gcc.target/i386/avx2-pr70354-2.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/vect/pr70354-1.c
trunk/gcc/testsuite/gcc.dg/vect/pr70354-2.c
trunk/gcc/testsuite/gcc.target/i386/avx2-pr70354-1.c
trunk/gcc/testsuite/gcc.target/i386/avx2-pr70354-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-patterns.c