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Re: [PATCH, testsuite, i386] FMA3 testcases + typo fix in MD


On Thu, Oct 6, 2011 at 3:48 PM, Kirill Yukhin <kirill.yukhin@gmail.com> wrote:
>>
>> BTW, don't you also need "-mfmpath=sse" in dg-options?
>>
>
> According to doc/invoke.texi
> ...
> @itemx -mfma
> ...
> These options will enable GCC to use these extended instructions in
> generated code, even without @option{-mfpmath=sse}.
>
> Seems it -mfpmath=sse is useless..
> Although, if this is wrong, we probably have to update doc as well.

Apparently [1], this is wrong, you need -mfpmath=sse in dg-options.

The reason you didn't see these failures with -m32 is due to
-mfpmath=sse added to your ./configure flags.

[1] http://gcc.gnu.org/ml/gcc-testresults/2011-10/msg01151.html

Uros.


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