From: Will Newton <will.newton@linaro.org>
Date: Mon, 31 Mar 2014 14:58:19 +0000 (+0100)
Subject: benchtests: Build ffs and ffsl benchtests with -fno-builtin
X-Git-Tag: glibc-2.20~661
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f6c557968c248b4554e708bd08983f0908ac09f1;p=thirdparty%2Fglibc.git

benchtests: Build ffs and ffsl benchtests with -fno-builtin

Without this flag it is possible that the compiler will optimize
away the calls to ffs/ffsll.

ChangeLog:

2014-04-01  Will Newton  <will.newton@linaro.org>

	* benchtests/Makefile (CFLAGS-bench-ffs.c): Add
	-fno-builtin.  (CFLAGS-bench-ffsll.c): Likewise.
---

diff --git a/ChangeLog b/ChangeLog
index 1ef37c7eda6..bfb30834fc1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2014-04-01  Will Newton  <will.newton@linaro.org>
+
+	* benchtests/Makefile (CFLAGS-bench-ffs.c): Add
+	-fno-builtin.  (CFLAGS-bench-ffsll.c): Likewise.
+
 2014-04-01  Florian Weimer  <fweimer@redhat.com>
 
 	[BZ #13347]
diff --git a/benchtests/Makefile b/benchtests/Makefile
index b184461ffdf..ca635cfe85b 100644
--- a/benchtests/Makefile
+++ b/benchtests/Makefile
@@ -37,6 +37,9 @@ stdlib-bench := strtod
 
 benchset := $(string-bench-all) $(stdlib-bench)
 
+CFLAGS-bench-ffs.c += -fno-builtin
+CFLAGS-bench-ffsll.c += -fno-builtin
+
 LDLIBS-bench-acos = -lm
 LDLIBS-bench-acosh = -lm
 LDLIBS-bench-asin = -lm