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* [gcc r13-6792] libstdc++: Use more precise __RECIPROCAL_MATH__ macro
@ 2023-03-21 19:31 Matthias Kretz
  0 siblings, 0 replies; only message in thread
From: Matthias Kretz @ 2023-03-21 19:31 UTC (permalink / raw)
  To: gcc-cvs, libstdc++-cvs

https://gcc.gnu.org/g:fac64bf456cf56f0c6309d21286b7eaf170f668e

commit r13-6792-gfac64bf456cf56f0c6309d21286b7eaf170f668e
Author: Matthias Kretz <m.kretz@gsi.de>
Date:   Tue Mar 21 17:40:21 2023 +0100

    libstdc++: Use more precise __RECIPROCAL_MATH__ macro
    
    Signed-off-by: Matthias Kretz <m.kretz@gsi.de>
    
    libstdc++-v3/ChangeLog:
    
            * include/experimental/bits/simd_x86.h
            (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
            with __RECIPROCAL_MATH__.

Diff:
---
 libstdc++-v3/include/experimental/bits/simd_x86.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/include/experimental/bits/simd_x86.h b/libstdc++-v3/include/experimental/bits/simd_x86.h
index 28ba344c2b2..2a3e74d9119 100644
--- a/libstdc++-v3/include/experimental/bits/simd_x86.h
+++ b/libstdc++-v3/include/experimental/bits/simd_x86.h
@@ -1469,7 +1469,7 @@ template <typename _Abi, typename>
 		[&__xf, &__yf](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA
 		  -> _SimdWrapper<_Float, __n_intermediate>
 		{
-#if __GCC_IEC_559 == 0
+#if __RECIPROCAL_MATH__
 		  // If -freciprocal-math is active, using the `/` operator is
 		  // incorrect because it may be translated to an imprecise
 		  // multiplication with reciprocal. We need to use inline

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