https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54346
--- Comment #9 from Hongtao.liu ---
(In reply to Hongtao.liu from comment #7)
> (In reply to Marc Glisse from comment #6)
> > The log says that this breaks tree-ssa/forwprop-19.c, but I don't see any
> > xfail or anything. Does it only fail becau
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54346
--- Comment #8 from CVS Commits ---
The master branch has been updated by Jakub Jelinek :
https://gcc.gnu.org/g:fa553ff26d96f6fecaa8f1b00649cfdc6cda5f5a
commit r13-3430-gfa553ff26d96f6fecaa8f1b00649cfdc6cda5f5a
Author: Jakub Jelinek
Date: Fr
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54346
--- Comment #7 from Hongtao.liu ---
(In reply to Marc Glisse from comment #6)
> The log says that this breaks tree-ssa/forwprop-19.c, but I don't see any
> xfail or anything. Does it only fail because gimple-simplify leaves some
> dead code aroun
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54346
--- Comment #6 from Marc Glisse ---
The log says that this breaks tree-ssa/forwprop-19.c, but I don't see any xfail
or anything. Does it only fail because gimple-simplify leaves some dead code
around, so you could update the test to scan the next
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54346
--- Comment #5 from CVS Commits ---
The master branch has been updated by hongtao Liu :
https://gcc.gnu.org/g:b88adba751da635c6f0c353c5bc51bbe2ecf4c89
commit r13-3212-gb88adba751da635c6f0c353c5bc51bbe2ecf4c89
Author: Liwei Xu
Date: Fri Sep 2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54346
--- Comment #4 from Hongtao.liu ---
Now more x86 shuffle instrinsics are folded into gimple VEC_PERM_EXPR, I guess
we need some Gimple-level pattern match to simplify successive vec_perm_expr.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54346
--- Comment #3 from Andrew Pinski ---
Here is example code which should produce the same code:
typedef int v4si __attribute__((vector_size (16)));
v4si
foo (v4si a, v4si b)
{
v4si c = __builtin_shuffle (a, b, __extension__ (v4si) {1, 4, 2, 7
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54346
Andrew Pinski changed:
What|Removed |Added
CC||pinskia at gcc dot gnu.org
--- Comment #
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54346
Andrew Pinski changed:
What|Removed |Added
Keywords||missed-optimization
Status|U
