[Bug middle-end/50145] New: FAIL: gcc.dg/torture/pr50067-*.c -O* execution test on powerpc*-*-*

[Bug middle-end/50145] New: FAIL: gcc.dg/torture/pr50067-*.c -O* execution test on powerpc*-*-*

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50145

             Bug #: 50145
           Summary: FAIL: gcc.dg/torture/pr50067-*.c -O* execution test on
                    powerpc*-*-*
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dominiq@lps.ens.fr
                CC: rguenther@suse.de
              Host: powerpc*-*-*
            Target: powerpc*-*-*
             Build: powerpc*-*-*


gcc.dg/torture/pr50067-*.c aborts on powerpc*-*-* (see
http://gcc.gnu.org/ml/gcc-testresults/2011-08/msg02191.html and
http://gcc.gnu.org/ml/gcc-testresults/2011-08/msg02189.html). AFAICT this is
not a regression: they aborts also when compiled with gcc 4.4.6.

[Bug middle-end/50145] FAIL: gcc.dg/torture/pr50067-*.c -O* execution test on powerpc*-*-*

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50145

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-08-21 19:37:26 UTC ---
Can you please check why?  I suppose it's a big/little-endian issue with the
testcase, so the expected array contents change?  Making the short input
array values duplicated in both bytes could fix the test (with adjusting
the expected output as well)

[Bug middle-end/50145] FAIL: gcc.dg/torture/pr50067-*.c -O* execution test on powerpc*-*-*

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50145

--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-08-21 20:21:04 UTC ---
> Can you please check why?

Using (note that I am C illiterate;-)

  for (i = 0; i < 32; ++i)
    printf("%hd  ", * (&a[i]));
  printf("\n");

before and after

  for (i = 0; i < 32; ++i)
    (*((unsigned short(*)[32])&a[0]))[i] = (*((char(*)[32])&a[0]))[i+8];

I get on powerpc-apple-darwin9:

0  1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21 
22  23  24  25  26  27  28  29  30  31  
0  4  0  5  0  6  0  7  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  

instead of

0  1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21 
22  23  24  25  26  27  28  29  30  31  
4  0  5  0  6  0  7  0  8  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  

on x86_64-apple-darwin10.

[Bug middle-end/50145] FAIL: gcc.dg/torture/pr50067-*.c -O* execution test on powerpc*-*-*

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50145

Mikael Pettersson <mikpe at it dot uu.se> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mikpe at it dot uu.se

--- Comment #3 from Mikael Pettersson <mikpe at it dot uu.se> 2011-08-22 09:24:40 UTC ---
gcc.dg/torture/pr50067-*.c also aborts on sparc64-linux and m68k-linux. 
They're both big-endian platforms.

[Bug middle-end/50145] FAIL: gcc.dg/torture/pr50067-*.c -O* execution test on powerpc*-*-*

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50145

Richard Guenther <rguenth at gcc dot gnu.org> changed:

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

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-08-22 10:28:00 UTC ---
Fixed.

[Bug middle-end/50145] FAIL: gcc.dg/torture/pr50067-*.c -O* execution test on powerpc*-*-*

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50145

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-08-22 10:27:46 UTC ---
Author: rguenth
Date: Mon Aug 22 10:27:42 2011
New Revision: 177952

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177952
Log:
2011-08-22  Richard Guenther  <rguenther@suse.de>

    PR testsuite/50145
    * gcc.dg/torture/pr50067-1.c: Run on little-endian systems only.
    * gcc.dg/torture/pr50067-2.c: Likewise.

Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/torture/pr50067-1.c
    trunk/gcc/testsuite/gcc.dg/torture/pr50067-2.c