https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
Bug 65443 depends on bug 66442, which changed state.
Bug 66442 Summary: [6 regression] FAIL: gcc.dg/autopar/pr46885.c (test for
excess errors)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66442
What|Removed |Ad
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
vries at gcc dot gnu.org changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|--
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #18 from vries at gcc dot gnu.org ---
Author: vries
Date: Fri Jun 5 15:57:34 2015
New Revision: 224154
URL: https://gcc.gnu.org/viewcvs?rev=224154&root=gcc&view=rev
Log:
Add transform_to_exit_first_loop_alt
2015-06-05 Tom de Vries
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #17 from vries at gcc dot gnu.org ---
Author: vries
Date: Thu May 28 21:23:54 2015
New Revision: 223848
URL: https://gcc.gnu.org/viewcvs?rev=223848&root=gcc&view=rev
Log:
Add transform_to_exit_first_loop_alt
2015-05-28 Tom de Vries
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #16 from vries at gcc dot gnu.org ---
ping:
- https://gcc.gnu.org/ml/gcc-patches/2015-04/msg00763.html
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #15 from vries at gcc dot gnu.org ---
Submitted updated patch:
https://gcc.gnu.org/ml/gcc-patches/2015-04/msg00115.html
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
vries at gcc dot gnu.org changed:
What|Removed |Added
Keywords||patch
--- Comment #14 from vri
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #13 from vries at gcc dot gnu.org ---
Created attachment 35145
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35145&action=edit
WIP patch
Added reduction example to testcases. Patch runs test-cases successfully.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
vries at gcc dot gnu.org changed:
What|Removed |Added
Attachment #35103|0 |1
is obsolete|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
vries at gcc dot gnu.org changed:
What|Removed |Added
Attachment #35092|0 |1
is obsolete|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
vries at gcc dot gnu.org changed:
What|Removed |Added
Attachment #35078|0 |1
is obsolete|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #9 from vries at gcc dot gnu.org ---
Created attachment 35080
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35080&action=edit
parloops dump with -ftry
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #8 from vries at gcc dot gnu.org ---
Created attachment 35079
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35079&action=edit
parloops dump with -fno-try
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #7 from vries at gcc dot gnu.org ---
Created attachment 35078
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35078&action=edit
WIP patch
WIP patch, works on included testcase only.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #6 from vries at gcc dot gnu.org ---
After looking into it a bit further, I think what we're trying to get is:
...
:
goto ;
:
i_17 = (int) ivtmp_y;
_7 = (long unsigned int) i_17;
_8 = _7 * 4;
_9 = pretmp_24 + _8;
_10 =
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
Richard Biener changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #4 from vries at gcc dot gnu.org ---
(In reply to vries from comment #3)
> (In reply to vries from comment #2)
> > The problem with this transformation is that '_20 + 1' might overflow,
> > that's what the comment 'This may need some a
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #3 from vries at gcc dot gnu.org ---
(In reply to vries from comment #2)
> The problem with this transformation is that '_20 + 1' might overflow,
> that's what the comment 'This may need some additional preconditioning in
> case NIT =
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #2 from vries at gcc dot gnu.org ---
AFAIU, this is meant with the todo:
...
:
goto ;
:
i_17 = (int) ivtmp_6;
_7 = (long unsigned int) i_17;
_8 = _7 * 4;
_9 = pretmp_24 + _8;
_10 = *_9;
sum_11 = _10 + sum_y;
i_12 =
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
--- Comment #1 from vries at gcc dot gnu.org ---
Consider test.c, compiled with -O2 -tree-parallelize-loops=2:
...
#include
extern unsigned int *a;
void
f (unsigned int n)
{
int i;
unsigned int sum = 1;
#pragma omp parallel
{
#pragma omp
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