[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Minios-devel] [UNIKRAFT/INTEL-INTRINSICS PATCH 1/3] Implement _mm_pause
Hey Felipe, The patch looks great, thanks! Vlad Reviewed-by: Vlad-Andrei Badoiu<vlad_andrei.badoiu@xxxxxxxxxxxxxxx> On 6/12/19 4:15 PM, Felipe Huici wrote: > From: Sharan Santhanam <sharan.santhanam@xxxxxxxxx> > > Signed-off-by: Sharan Santhanam <sharan.santhanam@xxxxxxxxx> > Signed-off-by: Felipe Huici <felipe.huici@xxxxxxxxx> > --- > include/emmintrin.h | 9 --------- > include/xmmintrin.h | 21 +++++++++++++++++++++ > 2 files changed, 21 insertions(+), 9 deletions(-) > > diff --git a/include/emmintrin.h b/include/emmintrin.h > index 8703b9a..c0573a1 100644 > --- a/include/emmintrin.h > +++ b/include/emmintrin.h > @@ -4999,15 +4999,6 @@ _mm_castsi128_pd(__m128i __a) > extern "C" { > #endif > > -/// Indicates that a spin loop is being executed for the purposes of > -/// optimizing power consumption during the loop. > -/// > -/// \headerfile <x86intrin.h> > -/// > -/// This intrinsic corresponds to the <c> PAUSE </c> instruction. > -/// > -void _mm_pause(void); > - > #if defined(__cplusplus) > } // extern "C" > #endif > diff --git a/include/xmmintrin.h b/include/xmmintrin.h > index e2543a7..2dfa4d5 100644 > --- a/include/xmmintrin.h > +++ b/include/xmmintrin.h > @@ -25,6 +25,15 @@ > #define __XMMINTRIN_H > > #include <mmintrin.h> > +/* Define the default attributes for the functions in this file. */ > +#ifdef __GNUC__ > +#define __DEFAULT_FN_ATTRS __attribute__((__gnu_inline__, __always_inline__, > __artificial__)) > +#define __DEFAULT_FN_ATTRS_MMX __attribute__((__gnu_inline__, > __always_inline__, __artificial__)) > +#else > +#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, > __target__("sse2"), __min_vector_width__(128))) > +#define __DEFAULT_FN_ATTRS_MMX __attribute__((__always_inline__, > __nodebug__, __target__("mmx,sse2"), __min_vector_width__(64))) > +#endif > + > > typedef int __v4si __attribute__((__vector_size__(16))); > typedef float __v4sf __attribute__((__vector_size__(16))); > @@ -3086,6 +3095,18 @@ do { \ > #define _m_ _mm_ > #define _m_ _mm_ > > +/// Indicates that a spin loop is being executed for the purposes of > +/// optimizing power consumption during the loop. > +/// > +/// \headerfile <x86intrin.h> > +/// > +/// This intrinsic corresponds to the <c> PAUSE </c> instruction. > +/// > +static inline void __DEFAULT_FN_ATTRS _mm_pause(void) > +{ > + __builtin_ia32_pause(); > +} > + > #undef __DEFAULT_FN_ATTRS > #undef __DEFAULT_FN_ATTRS_MMX > _______________________________________________ Minios-devel mailing list Minios-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/minios-devel
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