Docs: mention that we support float reductions when -ffast-math is used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171873 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/docs/Vectorizers.rst b/docs/Vectorizers.rst
index f3cbc42dc07a661ef8055342c6712a415708a05d..07486347e374ece62f1c2e612ba51f8d50bf4b3c 100644 (file)
--- a/docs/Vectorizers.rst
+++ b/docs/Vectorizers.rst
@@ -120,6 +120,8 @@ reduction operations, such as addition, multiplication, XOR, AND and OR.
     return sum;
   }
 
+We support floating point reduction operations when `-ffast-math` is used.
+
 Inductions
 ^^^^^^^^^^