[Bug tree-optimization/58508] [Missed-Optimization] Redundant vector load of "actual" loop invariant in loop body.

2013-11-11 Thread congh at google dot com 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58508

Cong Hou  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #9 from Cong Hou  ---
(In reply to congh from comment #8)
> Author: congh
> Date: Fri Nov  8 18:44:46 2013
> New Revision: 204590
> 
> URL: http://gcc.gnu.org/viewcvs?rev=204590&root=gcc&view=rev
> Log:
> 2013-11-08  Cong Hou  
> 
>   PR tree-optimization/58508
>   * gcc.dg/vect/pr58508.c: Update.
> 
> 
> Modified:
> trunk/gcc/testsuite/ChangeLog
> trunk/gcc/testsuite/gcc.dg/vect/pr58508.c

[Bug tree-optimization/58508] [Missed-Optimization] Redundant vector load of "actual" loop invariant in loop body.

2013-11-08 Thread congh at gcc dot gnu.org 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58508

--- Comment #8 from congh at gcc dot gnu.org ---
Author: congh
Date: Fri Nov  8 18:44:46 2013
New Revision: 204590

URL: http://gcc.gnu.org/viewcvs?rev=204590&root=gcc&view=rev
Log:
2013-11-08  Cong Hou  

PR tree-optimization/58508
* gcc.dg/vect/pr58508.c: Update.


Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/vect/pr58508.c

[Bug tree-optimization/58508] [Missed-Optimization] Redundant vector load of "actual" loop invariant in loop body.

2013-10-29 Thread congh at google dot com 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58508

--- Comment #7 from Cong Hou  ---
OK. I made a new patch to fix this problem. Waiting to be approved.


thanks,
Cong



diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 9d0f4a5..3d9916d 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2013-10-29  Cong Hou  
+
+   * gcc.dg/vect/pr58508.c: Update.
+
 2013-10-15  Cong Hou  

* gcc.dg/vect/pr58508.c: New test.
diff --git a/gcc/testsuite/gcc.dg/vect/pr58508.c
b/gcc/testsuite/gcc.dg/vect/pr58508.c
index 6484a65..fff7a04 100644
--- a/gcc/testsuite/gcc.dg/vect/pr58508.c
+++ b/gcc/testsuite/gcc.dg/vect/pr58508.c
@@ -1,3 +1,4 @@
+/* { dg-require-effective-target vect_int } */
 /* { dg-do compile } */
 /* { dg-options "-O2 -ftree-vectorize -fdump-tree-vect-details" } */





On Tue, Oct 29, 2013 at 6:50 AM, bernd.edlinger at hotmail dot de
 wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58508
>
> --- Comment #6 from Bernd Edlinger  ---
> (In reply to Cong Hou from comment #5)
>> I guess I should add
>>
>> /* { dg-require-effective-target vect_int } */
>>
>> to the test case. It is right?
>
> Yes.
>
> --
> You are receiving this mail because:
> You reported the bug.

[Bug tree-optimization/58508] [Missed-Optimization] Redundant vector load of "actual" loop invariant in loop body.

2013-10-29 Thread bernd.edlinger at hotmail dot de 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58508

--- Comment #6 from Bernd Edlinger  ---
(In reply to Cong Hou from comment #5)
> I guess I should add 
> 
> /* { dg-require-effective-target vect_int } */
> 
> to the test case. It is right?

Yes.

[Bug tree-optimization/58508] [Missed-Optimization] Redundant vector load of "actual" loop invariant in loop body.

2013-10-28 Thread congh at google dot com 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58508

--- Comment #5 from Cong Hou  ---
I guess I should add 

/* { dg-require-effective-target vect_int } */

to the test case. It is right?

[Bug tree-optimization/58508] [Missed-Optimization] Redundant vector load of "actual" loop invariant in loop body.

2013-10-26 Thread bernd.edlinger at hotmail dot de 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58508

Bernd Edlinger  changed:

   What|Removed |Added

 CC||bernd.edlinger at hotmail dot 
de

--- Comment #4 from Bernd Edlinger  ---
Hi,

the test case is failing on a i686-pc-linux-gnu.
Reason: by default the -msse2 is not enabled.
If I add -msse2 to dg_options the test passes.

Regards
Bernd.

[Bug tree-optimization/58508] [Missed-Optimization] Redundant vector load of "actual" loop invariant in loop body.

2013-09-24 Thread rguenth at gcc dot gnu.org 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58508

Richard Biener  changed:

   What|Removed |Added

   Keywords||missed-optimization
 Status|UNCONFIRMED |NEW
   Last reconfirmed||2013-09-24
 Blocks||53947
 Ever confirmed|0   |1

--- Comment #1 from Richard Biener  ---
While the observation is correct, the fix is not.  Please just emit the
load on the preheader edge, like we do for other dt_external vectors we
materialize.