From 66e950d2e90c29f826f0ad2c842861c4b6ab4b42 Mon Sep 17 00:00:00 2001
From: serge-sans-paille <serge.guelton@telecom-bretagne.eu>
Date: Thu, 2 Sep 2021 07:37:18 +0200
Subject: [PATCH] Prevent reordering of some floating point op under fast-math

---
 include/xsimd/arch/generic/xsimd_generic_math.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/xsimd/arch/generic/xsimd_generic_math.hpp b/include/xsimd/arch/generic/xsimd_generic_math.hpp
index 87e9626c5..0e477f2a4 100644
--- a/include/xsimd/arch/generic/xsimd_generic_math.hpp
+++ b/include/xsimd/arch/generic/xsimd_generic_math.hpp
@@ -1733,8 +1733,8 @@ namespace xsimd {
         // to v. That's not what we want, so prevent compiler optimization here.
         // FIXME: it may be better to emit a memory barrier here (?).
 #ifdef __FAST_MATH__
-        volatile batch_type d0 = v + t2n;
-        batch_type d = *(batch_type*)(void*)(&d0) - t2n;
+        volatile auto d0 = (v + t2n).data;
+        batch_type d = batch_type(d0) - t2n;
 #else
         batch_type d0 = v + t2n;
         batch_type d = d0 - t2n;