From 7a8330c01bea0cb98654ca25e3ca5db7d48694b3 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Fri, 21 Oct 2016 21:18:03 +0000 Subject: [PATCH] Use -fno-builtin for sqrt benchmark. This patch makes the sqrt benchmark use -fno-builtin, as already done for benchmarks of ffs and ffsll, so that it actually benchmarks the glibc function as (presumably) intended even in the presence of the compiler inlining sqrt. Tested for x86_64 and also used for benchmarking my ARM sqrt patch. * benchtests/Makefile (CFLAGS-bench-sqrt.c): New variable. --- ChangeLog | 4 ++++ benchtests/Makefile | 1 + 2 files changed, 5 insertions(+) diff --git a/ChangeLog b/ChangeLog index d2b0b76578..e41c3e7330 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,7 @@ +2016-10-21 Joseph Myers + + * benchtests/Makefile (CFLAGS-bench-sqrt.c): New variable. + 2016-10-21 Paul E. Murphy * sysdeps/powerpc/fpu/fenv_private.h: diff --git a/benchtests/Makefile b/benchtests/Makefile index 144b32ea38..5a61522689 100644 --- a/benchtests/Makefile +++ b/benchtests/Makefile @@ -72,6 +72,7 @@ benchset := $(string-benchset-all) $(stdlib-benchset) $(stdio-common-benchset) \ CFLAGS-bench-ffs.c += -fno-builtin CFLAGS-bench-ffsll.c += -fno-builtin +CFLAGS-bench-sqrt.c += -fno-builtin bench-malloc := malloc-thread