benchtests: Switch string benchmarks to use bench-timing.h.

Switch the string benchmarks to using bench-timing.h instead
of hp-timing.h directly. This allows the string benchmarks to
be run usefully on architectures such as ARM that do not have
support for hp-timing.h.

In order to do this the tests have been changed from timing each
individual call and picking the lowest execution time recorded to
timing a number of calls and taking the mean execution time.

ChangeLog:

2013-09-04   Will Newton  <will.newton@linaro.org>

	* benchtests/bench-timing.h (TIMING_PRINT_MEAN): New macro.
	* benchtests/bench-string.h: Include bench-timing.h instead
	of including hp-timing.h directly. (INNER_LOOP_ITERS): New
	define. (HP_TIMING_BEST): Delete macro. (test_init): Remove
	call to HP_TIMING_DIFF_INIT.
	* benchtests/bench-memccpy.c: Use bench-timing.h macros
	instead of hp-timing.h macros.
	* benchtests/bench-memchr.c: Likewise.
	* benchtests/bench-memcmp.c: Likewise.
	* benchtests/bench-memcpy.c: Likewise.
	* benchtests/bench-memmem.c: Likewise.
	* benchtests/bench-memmove.c: Likewise.
	* benchtests/bench-memset.c: Likewise.
	* benchtests/bench-rawmemchr.c: Likewise.
	* benchtests/bench-strcasecmp.c: Likewise.
	* benchtests/bench-strcasestr.c: Likewise.
	* benchtests/bench-strcat.c: Likewise.
	* benchtests/bench-strchr.c: Likewise.
	* benchtests/bench-strcmp.c: Likewise.
	* benchtests/bench-strcpy.c: Likewise.
	* benchtests/bench-strcpy_chk.c: Likewise.
	* benchtests/bench-strlen.c: Likewise.
	* benchtests/bench-strncasecmp.c: Likewise.
	* benchtests/bench-strncat.c: Likewise.
	* benchtests/bench-strncmp.c: Likewise.
	* benchtests/bench-strncpy.c: Likewise.
	* benchtests/bench-strnlen.c: Likewise.
	* benchtests/bench-strpbrk.c: Likewise.
	* benchtests/bench-strrchr.c: Likewise.
	* benchtests/bench-strspn.c: Likewise.
	* benchtests/bench-strstr.c: Likewise.

1 files changed, 34 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 743d718361..28120a581c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,37 @@
+2013-09-04   Will Newton  <will.newton@linaro.org>
+
+	* benchtests/bench-timing.h (TIMING_PRINT_MEAN): New macro.
+	* benchtests/bench-string.h: Include bench-timing.h instead
+	of including hp-timing.h directly. (INNER_LOOP_ITERS): New
+	define. (HP_TIMING_BEST): Delete macro. (test_init): Remove
+	call to HP_TIMING_DIFF_INIT.
+	* benchtests/bench-memccpy.c: Use bench-timing.h macros
+	instead of hp-timing.h macros.
+	* benchtests/bench-memchr.c: Likewise.
+	* benchtests/bench-memcmp.c: Likewise.
+	* benchtests/bench-memcpy.c: Likewise.
+	* benchtests/bench-memmem.c: Likewise.
+	* benchtests/bench-memmove.c: Likewise.
+	* benchtests/bench-memset.c: Likewise.
+	* benchtests/bench-rawmemchr.c: Likewise.
+	* benchtests/bench-strcasecmp.c: Likewise.
+	* benchtests/bench-strcasestr.c: Likewise.
+	* benchtests/bench-strcat.c: Likewise.
+	* benchtests/bench-strchr.c: Likewise.
+	* benchtests/bench-strcmp.c: Likewise.
+	* benchtests/bench-strcpy.c: Likewise.
+	* benchtests/bench-strcpy_chk.c: Likewise.
+	* benchtests/bench-strlen.c: Likewise.
+	* benchtests/bench-strncasecmp.c: Likewise.
+	* benchtests/bench-strncat.c: Likewise.
+	* benchtests/bench-strncmp.c: Likewise.
+	* benchtests/bench-strncpy.c: Likewise.
+	* benchtests/bench-strnlen.c: Likewise.
+	* benchtests/bench-strpbrk.c: Likewise.
+	* benchtests/bench-strrchr.c: Likewise.
+	* benchtests/bench-strspn.c: Likewise.
+	* benchtests/bench-strstr.c: Likewise.
+
 2013-09-04  Will Newton  <will.newton@linaro.org>
 
 	* benchtests/Makefile: Use LDLIBS instead of LDFLAGS.