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s390x: for clang use fp-contract=on instead of fast
author
Marius Hillenbrand
<mhillen@linux.ibm.com>
Wed, 16 Sep 2020 13:55:38 +0000
(15:55 +0200)
committer
Marius Hillenbrand
<mhillen@linux.ibm.com>
Mon, 21 Sep 2020 09:32:08 +0000
(11:32 +0200)
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>
Makefile.zarch
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diff --git
a/Makefile.zarch
b/Makefile.zarch
index
b841d9b
..
092ca25
100644
(file)
--- 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