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From: Matthias Kretz <mkretz@gcc.gnu.org>
To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org
Subject: [gcc r12-9184] libstdc++: Fix incorrect function call in -ffast-math optimization
Date: Thu, 16 Feb 2023 21:04:25 +0000 (GMT) [thread overview]
Message-ID: <20230216210425.68F43385828E@sourceware.org> (raw)
https://gcc.gnu.org/g:c70a6414d74431a9370c6806ea04882185774fe9
commit r12-9184-gc70a6414d74431a9370c6806ea04882185774fe9
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.
(cherry picked from commit a5de17d9120dde7e6598a05ea4d1556c2783c69b)
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 5fe44adceb5..b008139c11c 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
@@ -1180,7 +1180,7 @@ _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
reply other threads:[~2023-02-16 21:04 UTC|newest]
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