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| author | Matthias Kretz <kretz@kde.org> | 2021-02-03 15:49:29 +0000 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2021-02-03 15:49:29 +0000 |
| commit | db256f9bef8c376e9d88e8f32ce94a03b6d105ee (patch) | |
| tree | abc40ba0da11205f3f78d50239e0d443bae52a9a | |
| parent | 4f22942841edabbdda8a15b172a5c143da7bdafe (diff) | |
| download | gcc-db256f9bef8c376e9d88e8f32ce94a03b6d105ee.zip gcc-db256f9bef8c376e9d88e8f32ce94a03b6d105ee.tar.gz gcc-db256f9bef8c376e9d88e8f32ce94a03b6d105ee.tar.bz2 | |
libstdc++: Support -mlong-double-64 on PPC
libstdc++-v3/ChangeLog:
* include/experimental/bits/simd.h: Let __intrinsic_type<long
double, N> be valid if sizeof(long double) == sizeof(double) and
use a __vector double as member type.
| -rw-r--r-- | libstdc++-v3/include/experimental/bits/simd.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/libstdc++-v3/include/experimental/bits/simd.h b/libstdc++-v3/include/experimental/bits/simd.h index c379721..477af86 100644 --- a/libstdc++-v3/include/experimental/bits/simd.h +++ b/libstdc++-v3/include/experimental/bits/simd.h @@ -2285,7 +2285,9 @@ template <typename _Tp, size_t _Bytes> struct __intrinsic_type<_Tp, _Bytes, enable_if_t<__is_vectorizable_v<_Tp> && _Bytes <= 16>> { - static_assert(!is_same_v<_Tp, long double>, + static constexpr bool _S_is_ldouble = is_same_v<_Tp, long double>; + // allow _Tp == long double with -mlong-double-64 + static_assert(!(_S_is_ldouble && sizeof(long double) > sizeof(double)), "no __intrinsic_type support for long double on PPC"); #ifndef __VSX__ static_assert(!is_same_v<_Tp, double>, @@ -2297,8 +2299,11 @@ template <typename _Tp, size_t _Bytes> "no __intrinsic_type support for integers larger than 4 Bytes " "on PPC w/o POWER8 vectors"); #endif - using type = typename __intrinsic_type_impl<conditional_t< - is_floating_point_v<_Tp>, _Tp, __int_for_sizeof_t<_Tp>>>::type; + using type = + typename __intrinsic_type_impl< + conditional_t<is_floating_point_v<_Tp>, + conditional_t<_S_is_ldouble, double, _Tp>, + __int_for_sizeof_t<_Tp>>>::type; }; #endif // __ALTIVEC__ |