[Bug testsuite/103051] [12 regression] new test case gcc.dg/vect/tsvc/vect-tsvc-s112.c fails in r12-4840

[willschm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103051

Will Schmidt <willschm at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |segher at gcc dot gnu.org,
                   |                            |wschmidt at gcc dot gnu.org

--- Comment #6 from Will Schmidt <willschm at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #4)
> All right, so I would ideally use:
> 
> /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target
> { has_arch_pwr7 } } } } */
> 
> but I see the following problem with detection of the target:
> 
>  78 Executing on host: /dev/shm/objdir/gcc/xgcc -B/dev/shm/objdir/gcc/
> arch_pwr759296.c  -fdiagnostics-plain-output  -S   -o arch_pwr759296.s   
> (timeout = 300)
>  79 spawn -ignore SIGHUP /dev/shm/objdir/gcc/xgcc -B/dev/shm/objdir/gcc/
> arch_pwr759296.c -fdiagnostics-plain-output -S -o arch_pwr759296.s^M
>  80 arch_pwr759296.c:3:18: error: #error does not have power7 support.^M    
> 
>  81 compiler exited with status 1                                           
> 
>  82 output is:                                                              
> 
>  83 arch_pwr759296.c:3:18: error: #error does not have power7 support.^M    
> 
> 
> Note the 
> 
> #ifndef _ARCH_PWR7
> 
> only works when one uses -mcpu=native (or a corresponding -mflag), am I
> right?
> Shouldn't the function check_effective_target_has_arch_pwr7 pass
> -mcpu=native?

I would expect it to pass with -mcpu=native.   
Needs a closer look, not sure if I can get to it in short order.  Added Bill
and Segher to cc.