Re: [Patch, testsuite, arm] Skip the arch conflict to enable case neon-thumb2-move pass on more targets.

[Richard Earnshaw <rearnsha at arm dot com>]

On 09/09/11 11:07, Richard Guenther wrote:
> On Fri, Sep 9, 2011 at 12:00 PM, Terry Guo <terry.guo@arm.com> wrote:
>> Hello,
>>
>> This patch enables the case pass on targets other than armv7-a by skipping
>> the architecture conflict message. Is it OK to trunk?
> 
> I don't like these kind of patches.  Why do the testcases have -march=armv7-a
> enabled in the first place?  If they really need it then they shouldn't be
> run with another -march and thus instead there should be a
> dg-requires-effective-target armv7-a.  If they don't really need it
> they shouldn't
> add it.
> 

I'm not particularly keen on them either, but with the current structure
of the testsuite framework the only way to test some unusual option
combinations is to force them (we can't test every option set, or even
every CPU supported via multilib testing as it would take ~forever to
run through all the variants).  So the only alternative is to force some
tests to run with specific options.

It might be easier if there were a specific part of the testsuite which
was designated to be non-executable, non-multilib.  That part would then
be used without all the multilib paraphernalia that leads to these hacks
(and would only ever be run once as well, regardless of the number of
multilibs being tested).  But until such time, this patch seems like the
only way forward.

R.

> Richard.
> 
>> BR,
>> Terry
>>
>> 2011-09-09  Terry Guo  <terry.guo@arm.com>
>>
>>          * gcc.target/arm/neon-thumb2-move.c: Skip the
>>        architecture conflict to enable the case pass
>>        on targets other than armv7-a.
>>
>> diff --git a/gcc/testsuite/gcc.target/arm/neon-thumb2-move.c
>> b/gcc/testsuite/gcc.target/arm/neon-thumb2-move.c
>> index 430a4d5..9cf86dd 100644
>> --- a/gcc/testsuite/gcc.target/arm/neon-thumb2-move.c
>> +++ b/gcc/testsuite/gcc.target/arm/neon-thumb2-move.c
>> @@ -3,6 +3,7 @@
>>  /* { dg-require-effective-target arm_thumb2_ok } */
>>  /* { dg-options "-O2 -mthumb -march=armv7-a" } */
>>  /* { dg-add-options arm_neon } */
>> +/* { dg-prune-output "switch .* conflicts with" } */
>>
>>  #include <arm_neon.h>
>>  #include <stddef.h>
>>
>>
>>
>>
>>
>>
>