https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61680
--- Comment #10 from Richard Biener ---
Author: rguenth
Date: Tue Jul 8 11:05:13 2014
New Revision: 212357
URL: https://gcc.gnu.org/viewcvs?rev=212357&root=gcc&view=rev
Log:
2014-07-08 Richard Biener
PR tree-optimization/61680
* tre
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61680
--- Comment #9 from Richard Biener ---
Author: rguenth
Date: Tue Jul 8 08:59:17 2014
New Revision: 212348
URL: https://gcc.gnu.org/viewcvs?rev=212348&root=gcc&view=rev
Log:
2014-07-08 Richard Biener
PR tree-optimization/61680
* tree
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61680
--- Comment #8 from Richard Biener ---
/* When we perform grouped accesses and perform implicit CSE
by detecting equal accesses and doing disambiguation with
runtime alias tests like for
.. = a[
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61680
Richard Biener changed:
What|Removed |Added
Status|NEW |ASSIGNED
Assignee|unassigned
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61680
--- Comment #6 from Jakub Jelinek ---
I think the problem is that for the w array (in C testcase) we have first a
partial group store (stores 3 out of 4 elements), then a group load (again,
loads 3 out of 4 elements) and finally the last store of
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61680
--- Comment #5 from Jakub Jelinek ---
C testcase:
double v[4096][4];
__attribute__((noinline, noclone)) void
bar (double p[][4])
{
int i;
double d = __builtin_sqrt (172.0);
for (i = 0; i < 4096; i++)
{
if (p[i][0] != 6.0 || p[i][
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61680
--- Comment #4 from Jakub Jelinek ---
With -O3 -msse2 -fno-vect-cost-model it fails as well, so this isn't a problem
in the AVX support, just that before AVX it wasn't considered profitable to
vectorize it.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61680
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
Target Milest
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61680
--- Comment #3 from Jakub Jelinek ---
With just -mavx -O3 instead of -march=corei7-avx -O3, r165435 still works
properly, r165436 ICEs, r165599 fixed the ICE, but the result is 10.0 already.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61680
Dominique d'Humieres changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
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