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 --git a/libstdc++-v3/include/experimental/bits/simd_x86.h b/libstdc++-v3/include/experimental/bits/simd_x86.h
index 28ba344c2b2084f79f7f46d80cdd9f3f118ba059..2a3e74d9119c2cbc4276b036f4ccd827e1cfc400 100644 (file)
--- 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