[Bug tree-optimization/61403] An opportunity for x86 gcc vectorizer (~40% gain)
jakub at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Fri Oct 3 18:16:00 GMT 2014
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61403
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Oct 3 18:16:09 2014
New Revision: 215866
URL: https://gcc.gnu.org/viewcvs?rev=215866&root=gcc&view=rev
Log:
PR tree-optimization/61403
* config/i386/i386.c (expand_vec_perm_palignr): Fix a spelling
error in comment. Also optimize 256-bit vectors for AVX2
or AVX (floating vectors only), provided the first permutation
can be performed in one insn.
* gcc.dg/torture/vshuf-32.inc: Add a new test 29.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/torture/vshuf-32.inc
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