[Bug c/57777] Python module fails compilation with "-march=core-avx2 -O3"

[Bug c/57777] Python module fails compilation with "-march=core-avx2 -O3"

[dirkjan at ochtman dot nl]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

--- Comment #1 from Dirkjan Ochtman <dirkjan at ochtman dot nl> ---
See https://bugs.gentoo.org/show_bug.cgi?id=475482 for more information.

[Bug c/57777] Python module fails compilation with "-march=core-avx2 -O3"

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Please provide preprocessed source of _randommodule.c

[Bug c/57777] Python module fails compilation with "-march=core-avx2 -O3"

[julian.ospald at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

Julian Ospald <julian.ospald at googlemail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |julian.ospald at googlemail dot co
                   |                            |m

--- Comment #3 from Julian Ospald <julian.ospald at googlemail dot com> ---
Created attachment 30418
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30418&action=edit
_randommodule-preprocessed.c

[Bug c/57777] Python module fails compilation with "-march=core-avx2 -O3"

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-07-02
                 CC|                            |areg.melikadamyan at gmail dot com
     Ever confirmed|0                           |1

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
The problem is in

        .text
        vpgatherqq      %ymm8, mag01.10849(,%ymm6,8), %ymm5
        .section        .rodata
        .align 16
        .type   mag01.10849, @object
        .size   mag01.10849, 16
mag01.10849:
        .quad   0   
        .quad   2567483615

"mag01.10849(,%ymm6,8)" isn't PC relative.

[Bug target/57777] Python module fails compilation with "-march=core-avx2 -O3"

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Reduced testcase for -O3 -mavx2 -fpic:
void
foo (unsigned long *x, int *y)
{
  static unsigned long b[2] = { 0x0UL, 0x9908b0dfUL };
  int c;
  for (c = 0; c < 512; c++)
    x[c] = b[x[c] & 1UL];
}

[Bug target/57777] [4.7/4.8/4.9 Regression] Python module fails compilation with "-march=core-avx2 -O3"

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.7.4
            Summary|Python module fails         |[4.7/4.8/4.9 Regression]
                   |compilation with            |Python module fails
                   |"-march=core-avx2 -O3"      |compilation with
                   |                            |"-march=core-avx2 -O3"

[Bug target/57777] [4.7/4.8/4.9 Regression] Python module fails compilation with "-march=core-avx2 -O3"

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 30425
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30425&action=edit
gcc49-pr57777.patch

Untested fix.

[Bug target/57777] [4.7/4.8/4.9 Regression] Python module fails compilation with "-march=core-avx2 -O3"

[julian.ospald at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

--- Comment #7 from Julian Ospald <julian.ospald at googlemail dot com> ---
(In reply to Jakub Jelinek from comment #6)
> Created attachment 30425 [details]
> gcc49-pr57777.patch
> 
> Untested fix.

I have tested that patch on gcc-4.8 and was able to compile the python module
successfully with "-march=core-avx2 -O3".

gcc-4.8 is affected as well without that patch, as the title correctly says.

[Bug target/57777] [4.7/4.8/4.9 Regression] Python module fails compilation with "-march=core-avx2 -O3"

[julian.ospald at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

--- Comment #8 from Julian Ospald <julian.ospald at googlemail dot com> ---
tested with gcc-4.7.3, and it works as well

for clarification: the previous test was with 4.8.1

[Bug target/57777] [4.7/4.8/4.9 Regression] Python module fails compilation with "-march=core-avx2 -O3"

[julian.ospald at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

--- Comment #9 from Julian Ospald <julian.ospald at googlemail dot com> ---
patch tested with gcc-4.9.0_alpha20130505, works as well

[Bug target/57777] [4.7 Regression] Python module fails compilation with "-march=core-avx2 -O3"

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.7/4.8/4.9 Regression]    |[4.7 Regression] Python
                   |Python module fails         |module fails compilation
                   |compilation with            |with "-march=core-avx2 -O3"
                   |"-march=core-avx2 -O3"      |

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Jul  3 20:23:38 2013
New Revision: 200649

URL: http://gcc.gnu.org/viewcvs?rev=200649&root=gcc&view=rev
Log:
    PR target/57777
    * config/i386/predicates.md (vsib_address_operand): Disallow
    SYMBOL_REF or LABEL_REF in parts.disp if TARGET_64BIT && flag_pic.

    * gcc.target/i386/pr57777.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr57777.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/predicates.md
    trunk/gcc/testsuite/ChangeLog

Author: jakub
Date: Wed Jul  3 20:24:19 2013
New Revision: 200650

URL: http://gcc.gnu.org/viewcvs?rev=200650&root=gcc&view=rev
Log:
    PR target/57777
    * config/i386/predicates.md (vsib_address_operand): Disallow
    SYMBOL_REF or LABEL_REF in parts.disp if TARGET_64BIT && flag_pic.

    * gcc.target/i386/pr57777.c: New test.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.target/i386/pr57777.c
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/config/i386/predicates.md
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog

Fixed for 4.8.2+ so far.

[Bug target/57777] [4.7 Regression] Python module fails compilation with "-march=core-avx2 -O3"

[lbbsome9 at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

Piotr <lbbsome9 at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |lbbsome9 at gmail dot com

--- Comment #11 from Piotr <lbbsome9 at gmail dot com> ---
(In reply to Julian Ospald from comment #7)
> (In reply to Jakub Jelinek from comment #6)
> > Created attachment 30425 [details]
> > gcc49-pr57777.patch
> > 
> > Untested fix.
> 
> I have tested that patch on gcc-4.8 and was able to compile the python
> module successfully with "-march=core-avx2 -O3".
> 
> gcc-4.8 is affected as well without that patch, as the title correctly says.

I had a similar situation with gcc 4.8.1, with "-O3 -march=core-avx2" and had
to pass -mno-avx2 in order to compile. For the sake of curiosity could you
confirm if "-O3 -march=core-avx2 -mno-avx2" compiles?



gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.1/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla
--enable-bootstrap --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-gnu-unique-object
--enable-linker-build-id --with-linker-hash-style=gnu
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin
--enable-initfini-array --enable-java-awt=gtk --disable-dssi
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
--enable-libgcj-multifile --enable-java-maintainer-mode
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib
--with-isl=/builddir/build/BUILD/gcc-4.8.1-20130603/obj-x86_64-redhat-linux/isl-install
--with-cloog=/builddir/build/BUILD/gcc-4.8.1-20130603/obj-x86_64-redhat-linux/cloog-install
--with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.8.1 20130603 (Red Hat 4.8.1-1) (GCC) 

system, fedora19

[Bug target/57777] [4.7 Regression] Python module fails compilation with "-march=core-avx2 -O3"

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed May  7 15:59:37 2014
New Revision: 210169

URL: http://gcc.gnu.org/viewcvs?rev=210169&root=gcc&view=rev
Log:
    Backported from mainline
    2013-07-03  Jakub Jelinek  <jakub@redhat.com>

    PR target/57777
    * config/i386/predicates.md (vsib_address_operand): Disallow
    SYMBOL_REF or LABEL_REF in parts.disp if TARGET_64BIT && flag_pic.

    * gcc.target/i386/pr57777.c: New test.

Added:
    branches/gcc-4_7-branch/gcc/testsuite/gcc.target/i386/pr57777.c
Modified:
    branches/gcc-4_7-branch/gcc/ChangeLog
    branches/gcc-4_7-branch/gcc/config/i386/predicates.md
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog

[Bug target/57777] [4.7 Regression] Python module fails compilation with "-march=core-avx2 -O3"

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.