When compiler configured with, say corei7-avx, it outputs twice more
diagnostics on integer tests since AVX deals mostly with floats. I.e.
compiler tries to vectorize on AVX vector size, than fails and then
vectorizes on smaller vector size. This double work leads to double
diagnostic output.

On Thu, Dec 29, 2011 at 12:07 PM, Ira Rosen <i...@il.ibm.com> wrote:
>
>
> gcc-patches-ow...@gcc.gnu.org wrote on 28/12/2011 11:05:19 PM:
>
>> Hi,
>
> Hi Igor,
>
>>
>> Here is another patch about failures in gcc.dg/vect tests. These
>> changes fix fails that could be seen on avx-built compilers. It also
>> introduces no FAILs/XFAILs/XPASSes/ERRORs on regular i686, x86_64,
>> avx2_32, avx2_64.
>> Is it ok for the trunk?
>
>
>> diff --git a/gcc/testsuite/gcc.dg/vect/vect-widen-mult-sum.c
> b/gcc/testsuite/gcc.dg/vect/vect-widen-mult-sum.c
>> index 2898918..1d190fc 100644
>> --- a/gcc/testsuite/gcc.dg/vect/vect-widen-mult-sum.c
>> +++ b/gcc/testsuite/gcc.dg/vect/vect-widen-mult-sum.c
>> @@ -43,5 +43,6 @@ int main (void)
>>
>>
>>  /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1
> "vect" { target vect_widen_mult_hi_to_si } } } */
>> -/* { dg-final { scan-tree-dump-times "vect_recog_widen_mult_pattern:
> detected" 1 "vect" } } */
>> +/* { dg-final { scan-tree-dump-times "vect_recog_widen_mult_pattern:
> detected" 1 "vect" { target {! vect_float_no_int } } } } */
>> +/* { dg-final { scan-tree-dump-times "vect_recog_widen_mult_pattern:
> detected" 2 "vect" { target vect_float_no_int } } } */
>>  /* { dg-final { cleanup-tree-dump "vect" } } */
>
> Could you please explain what are you trying to do? How is
>> +# Return 1 if the target supports hardware vectors of float and doesn't
> support
>> +# vectors of int, 0 otherwise.
> related to the number of times that pattern is detected?
>
> Thanks,
> Ira
>
>
>>
>> Thanks,
>> Igor
>>
>> 2011-12-28  Igor Zamyatin  <igor.zamya...@intel.com>
>>
>>        PR testsuite/51097
>>        * lib/target-supports.exp
> (check_effective_target_vect_float_no_int):
>>        New function.
>>        (check_avx2_available): Ditto.
>>        * gcc.dg/vect/no-scevccp-outer-7.c: Adjust dg-scans for AVX-built
>>        compiler.
>>        * gcc.dg/vect/no-scevccp-vect-iv-3.c: Likewise.
>>        * gcc.dg/vect/no-vfa-vect-depend-1.c: Likewise.
>>        * gcc.dg/vect/no-vfa-vect-dv-2.c: Likewise.
>>        * gcc.dg/vect/slp-perm-9.c: Likewise.
>>        * gcc.dg/vect/slp-reduc-6.c: Likewise.
>>        * gcc.dg/vect/slp-widen-mult-half.c: Likewise.
>>        * gcc.dg/vect/vect-109.c: Likewise.
>>        * gcc.dg/vect/vect-119.c: Likewise.
>>        * gcc.dg/vect/vect-35-big-array.c: Likewise.
>>        * gcc.dg/vect/vect-91.c: Likewise.
>>        * gcc.dg/vect/vect-multitypes-4.c: Likewise.
>>        * gcc.dg/vect/vect-multitypes-6.c: Likewise.
>>        * gcc.dg/vect/vect-outer-4c-big-array.c: Likewise.
>>        * gcc.dg/vect/vect-over-widen-1.c: Likewise.
>>        * gcc.dg/vect/vect-over-widen-4.c: Likewise.
>>        * gcc.dg/vect/vect-peel-1.c: Likewise.
>>        * gcc.dg/vect/vect-peel-3.c: Likewise.
>>        * gcc.dg/vect/vect-peel-4.c: Likewise.
>>        * gcc.dg/vect/vect-reduc-dot-s16a.c: Likewise.
>>        * gcc.dg/vect/vect-reduc-dot-s8a.c: Likewise.
>>        * gcc.dg/vect/vect-reduc-dot-u8a.c: Likewise.
>>        * gcc.dg/vect/vect-reduc-dot-u8b.c: Likewise.
>>        * gcc.dg/vect/vect-reduc-pattern-1a.c: Likewise.
>>        * gcc.dg/vect/vect-reduc-pattern-1b-big-array.c: Likewise.
>>        * gcc.dg/vect/vect-reduc-pattern-1c-big-array.c: Likewise.
>>        * gcc.dg/vect/vect-reduc-pattern-2a.c: Likewise.
>>        * gcc.dg/vect/vect-reduc-pattern-2b-big-array.c: Likewise.
>>        * gcc.dg/vect/vect-widen-mult-const-s16.c: Likewise.
>>        * gcc.dg/vect/vect-widen-mult-const-u16.c: Likewise.
>>        * gcc.dg/vect/vect-widen-mult-half-u8.c: Likewise.
>>        * gcc.dg/vect/vect-widen-mult-half.c: Likewise.
>>        * gcc.dg/vect/vect-widen-mult-sum.c: Likewise.
>>        * gcc.dg/vect/vect-widen-mult-u16.c: Likewise.
>>        * gcc.dg/vect/wrapv-vect-reduc-dot-s8b.c: Likewise.
>> [attachment "51097.patch" deleted by Ira Rosen/Haifa/IBM]
>

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