[Bug c++/91043] GCC produces unaligned vmovdqa vector data access

2019-07-01 Thread ubizjak at gmail dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91043

--- Comment #6 from Uroš Bizjak  ---
(In reply to Hanoch Haim from comment #5)

> if anything else is needed I would provide it
Please follow the procedure, outlined in [1].

[1] https://www.gnu.org/software/gcc/bugs/

[Bug c++/91043] GCC produces unaligned vmovdqa vector data access

2019-07-01 Thread hhaim at cisco dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91043

--- Comment #5 from Hanoch Haim  ---
It was fast. 

The way to build are here

https://github.com/cisco-system-traffic-generator/trex-core/wiki#how-to-build-trex

```
$ git clone g...@github.com:cisco-system-traffic-generator/trex-core.git
$cd linux_dpdk
$./b configure  
$./b build

```


with gcc 7.x/8.x only this function are with wrong optimization 


if anything else is needed I would provide it

[Bug c++/91043] GCC produces unaligned vmovdqa vector data access

2019-07-01 Thread rguenth at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91043

Richard Biener  changed:

   What|Removed |Added

 Status|UNCONFIRMED |WAITING
   Last reconfirmed||2019-07-01
 Ever confirmed|0   |1

--- Comment #4 from Richard Biener  ---
Please provide preprocessed source and the full compiler command-line to
reproduce.  See https://gcc.gnu.org/bugs.html

[Bug c++/91043] GCC produces unaligned vmovdqa vector data access

2019-07-01 Thread hhaim at cisco dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91043

--- Comment #3 from Hanoch Haim  ---
With Ubuntu gcc7.4 package, there is no bug. 
I've built the gcc from source and it has an issue. There are a diffrent
configuration values

[Bug c++/91043] GCC produces unaligned vmovdqa vector data access

2019-07-01 Thread hhaim at cisco dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91043

--- Comment #2 from Hanoch Haim  ---
/usr/local/gcc-8.3/bin/gcc -v
Using built-in specs.
COLLECT_GCC=/usr/local/gcc-8.3/bin/gcc
COLLECT_LTO_WRAPPER=/usr/local/gcc-8.3/libexec/gcc/x86_64-pc-linux-gnu/8.3.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ./configure --disable-multilib --enable-languages=c,c++
--prefix=/usr/local/gcc-8.3
Thread model: posix
gcc version 8.3.0 (GCC) 
[csi-kiwi-03]>

[Bug c++/91043] GCC produces unaligned vmovdqa vector data access

2019-07-01 Thread hhaim at cisco dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91043

Hanoch Haim  changed:

   What|Removed |Added

 Target||x86
   Host||x86

--- Comment #1 from Hanoch Haim  ---
/usr/local/gcc-7.4/bin/gcc -v
Using built-in specs.
COLLECT_GCC=/usr/local/gcc-7.4/bin/gcc
COLLECT_LTO_WRAPPER=/usr/local/gcc-7.4/libexec/gcc/x86_64-pc-linux-gnu/7.4.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ./configure --disable-multilib --enable-languages=c,c++
--prefix=/usr/local/gcc-7.4
Thread model: posix
gcc version 7.4.0 (GCC) 
[csi