From: Marius Hillenbrand <mhillen@linux.ibm.com>
Date: Wed, 16 Sep 2020 13:55:38 +0000 (+0200)
Subject: s390x: for clang use fp-contract=on instead of fast
X-Git-Tag: upstream/0.3.21~25^2~38^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=77ea73f5e5579ea35b6be03bac455643b84e343d;p=platform%2Fupstream%2Fopenblas.git

s390x: for clang use fp-contract=on instead of fast

Make clang slightly more cautious when contracting floating-point
operations (e.g., when applying fused multiply add) by setting
-ffp-contract=on (instead of fast).

Signed-off-by: Marius Hillenbrand <mhillen@linux.ibm.com>
---

diff --git a/Makefile.zarch b/Makefile.zarch
index b841d9b..092ca25 100644
--- a/Makefile.zarch
+++ b/Makefile.zarch
@@ -12,5 +12,5 @@ endif
 # Enable floating-point expression contraction for clang, since it is the
 # default for gcc
 ifeq ($(C_COMPILER), CLANG)
-CCOMMON_OPT += -ffp-contract=fast
+CCOMMON_OPT += -ffp-contract=on
 endif