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* [gcc r13-6095] libstdc++: Fix incorrect function call in -ffast-math optimization
@ 2023-02-16 14:59 Matthias Kretz
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From: Matthias Kretz @ 2023-02-16 14:59 UTC (permalink / raw)
To: gcc-cvs, libstdc++-cvs
https://gcc.gnu.org/g:a5de17d9120dde7e6598a05ea4d1556c2783c69b
commit r13-6095-ga5de17d9120dde7e6598a05ea4d1556c2783c69b
Author: Matthias Kretz <m.kretz@gsi.de>
Date: Fri Feb 3 17:47:05 2023 +0100
libstdc++: Fix incorrect function call in -ffast-math optimization
Signed-off-by: Matthias Kretz <m.kretz@gsi.de>
libstdc++-v3/ChangeLog:
* include/experimental/bits/simd_math.h (__hypot): Bitcasting
between scalars requires the __bit_cast helper function instead
of simd_bit_cast.
Diff:
---
libstdc++-v3/include/experimental/bits/simd_math.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libstdc++-v3/include/experimental/bits/simd_math.h b/libstdc++-v3/include/experimental/bits/simd_math.h
index c20315e4e30..c91f05fceb3 100644
--- a/libstdc++-v3/include/experimental/bits/simd_math.h
+++ b/libstdc++-v3/include/experimental/bits/simd_math.h
@@ -1010,7 +1010,7 @@ template <typename _VV, typename = __detail::__odr_helper>
using _IV = rebind_simd_t<_Ip, _V>;
const auto __as_int = simd_bit_cast<_IV>(__hi_exp);
const _V __scale
- = simd_bit_cast<_V>(2 * simd_bit_cast<_Ip>(_Tp(1)) - __as_int);
+ = simd_bit_cast<_V>(2 * __bit_cast<_Ip>(_Tp(1)) - __as_int);
#else
const _V __scale = (__hi_exp ^ __inf) * _Tp(.5);
#endif
@@ -1181,7 +1181,7 @@ _GLIBCXX_SIMD_CVTING2(hypot)
using _IV = rebind_simd_t<_Ip, _V>;
const auto __as_int = simd_bit_cast<_IV>(__hi_exp);
const _V __scale
- = simd_bit_cast<_V>(2 * simd_bit_cast<_Ip>(_Tp(1)) - __as_int);
+ = simd_bit_cast<_V>(2 * __bit_cast<_Ip>(_Tp(1)) - __as_int);
#else
const _V __scale = (__hi_exp ^ __inf) * _Tp(.5);
#endif
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