This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [PATCH][i386]Fix PR 57756


Hi Jakub,

   This simple patch fixes the -m32 -mno-sse bugs you reported. A few
more places where I did not change references to global_options.
Uros/Richard: Is this ok to commit?

* config/i386/i386.c (ix86_option_override_internal):
Change TARGET_SSE2 to TARGET_SSE2_P (opts->...)
(ix86_valid_target_attribute_tree):
Change TARGET_64BIT to TARGET_64BIT_P (opts->...)
Change TARGET_SSE to TARGET_SSE_P (opts->...)

Thanks
Sri

On Fri, Oct 18, 2013 at 7:10 PM, Sriraman Tallam <tmsriram@google.com> wrote:
> On Thu, Oct 17, 2013 at 3:10 PM, Jakub Jelinek <jakub@redhat.com> wrote:
>> On Thu, Oct 17, 2013 at 12:30:46PM -0700, Sriraman Tallam wrote:
>>> I checked my build again for these tests and they all pass.
>>
>> Even on x86_64-linux I can reproduce all of those with
>> -m32 -mno-sse.
>
> Figured out why this happens in -m32 -mno-sse mode. This simple patch
> that will fix it Basically, there are a couple of more places where
> references to global_options need to be fixed. . I am consolidating
> the patch for all the x86 test case failures into one patch which I
> will later send out for review.
>
> Index: config/i386/i386.c
> ===================================================================
> --- config/i386/i386.c (revision 203830)
> +++ config/i386/i386.c (working copy)
> @@ -3810,7 +3810,7 @@ ix86_option_override_internal (bool main_args_p,
>       codegen.  We may switch to 387 with -ffast-math for size optimized
>       functions. */
>    else if (fast_math_flags_set_p (&global_options)
> -   && TARGET_SSE2)
> +   && TARGET_SSE2_P (opts->x_ix86_isa_flags))
>      ix86_fpmath = FPMATH_SSE;
>    else
>      opts->x_ix86_fpmath = TARGET_FPMATH_DEFAULT_P (opts->x_ix86_isa_flags);
> @@ -4566,7 +4566,8 @@ ix86_valid_target_attribute_tree (tree args,
>        /* If fpmath= is not set, and we now have sse2 on 32-bit, use it.  */
>        if (enum_opts_set.x_ix86_fpmath)
>   opts_set->x_ix86_fpmath = (enum fpmath_unit) 1;
> -      else if (!TARGET_64BIT && TARGET_SSE)
> +      else if (!TARGET_64BIT_P (opts->x_ix86_isa_flags)
> +       && TARGET_SSE_P (opts->x_ix86_isa_flags))
>   {
>    opts->x_ix86_fpmath = (enum fpmath_unit) (FPMATH_SSE | FPMATH_387);
>
>>
>>         Jakub

Attachment: pr57756_aux.txt
Description: Text document


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]