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GNU C Library master sources branch master updated. glibc-2.19-250-gf6c5579

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       via  f6c557968c248b4554e708bd08983f0908ac09f1 (commit)
      from  13f7fe35ae2b0ea55dc4b9628763aafdc8bdc30c (commit)

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- Log -----------------------------------------------------------------;a=commitdiff;h=f6c557968c248b4554e708bd08983f0908ac09f1

commit f6c557968c248b4554e708bd08983f0908ac09f1
Author: Will Newton <>
Date:   Mon Mar 31 15:58:19 2014 +0100

    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.
    2014-04-01  Will Newton  <>
    	* benchtests/Makefile (CFLAGS-bench-ffs.c): Add
    	-fno-builtin.  (CFLAGS-bench-ffsll.c): Likewise.

diff --git a/ChangeLog b/ChangeLog
index 1ef37c7..bfb3083 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2014-04-01  Will Newton  <>
+	* benchtests/Makefile (CFLAGS-bench-ffs.c): Add
+	-fno-builtin.  (CFLAGS-bench-ffsll.c): Likewise.
 2014-04-01  Florian Weimer  <>
 	[BZ #13347]
diff --git a/benchtests/Makefile b/benchtests/Makefile
index b184461..ca635cf 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


Summary of changes:
 ChangeLog           |    5 +++++
 benchtests/Makefile |    3 +++
 2 files changed, 8 insertions(+), 0 deletions(-)

GNU C Library master sources

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