[PATCH] Add sin (fast and slow paths) to benchmark

[Siddhesh Poyarekar <siddhesh at redhat dot com>]

Hi,

This patch adds inputs for the fast and slow paths of sin to the
benchmark.  The inputs for the slow path were identified in bz #5781
and the fast path ones are just truncated versions of the slow ones.
I verified that the inputs still trigger the slow path.  OK to commit?

Siddhesh

	* bench/Makefile (bench): Add sin and slowsin.
	* benchtests/sin-inputs: New file.
	* benchtests/slowsin-inputs: New file.
	* benchtests/slowsin.c: New file.

diff --git a/benchtests/Makefile b/benchtests/Makefile
index 591c245..933645b 100644
--- a/benchtests/Makefile
+++ b/benchtests/Makefile
@@ -43,7 +43,7 @@
 #   See pow-inputs for an example.
 
 subdir := benchtests
-bench := exp pow rint slowexp slowpow
+bench := exp pow rint sin slowexp slowpow slowsin
 
 # exp function fast path
 exp-ITER = 5e8
@@ -69,6 +69,12 @@ slowexp-RET = double
 slowexp-INCLUDE = slowexp.c
 LDFLAGS-bench-slowexp = -lm
 
+# sin function fast path
+sin-ITER = 3e9
+sin-ARGLIST = double
+sin-RET = double
+LDFLAGS-bench-sin = -lm
+
 # pow function slowest path
 slowpow-ITER = 1e5
 slowpow-ARGLIST = double:double
@@ -76,5 +82,12 @@ slowpow-RET = double
 slowpow-INCLUDE = slowpow.c
 LDFLAGS-bench-slowpow = -lm
 
+# sin function slowest path
+slowsin-ITER = 3e7
+slowsin-ARGLIST = double
+slowsin-RET = double
+slowsin-INCLUDE = slowsin.c
+LDFLAGS-bench-slowsin = -lm
+
 include ../Makeconfig
 include ../Rules
diff --git a/benchtests/sin-inputs b/benchtests/sin-inputs
new file mode 100644
index 0000000..620cea8
--- /dev/null
+++ b/benchtests/sin-inputs
@@ -0,0 +1,7 @@
+0.9
+2.3
+3.7
+3.9
+4.0
+4.7
+5.9
diff --git a/benchtests/slowsin-inputs b/benchtests/slowsin-inputs
new file mode 100644
index 0000000..39daf80
--- /dev/null
+++ b/benchtests/slowsin-inputs
@@ -0,0 +1,7 @@
+0.93340582292648832662962377071381
+2.3328432680770916363144351635128
+3.7439477503636453548097051680088
+3.9225160069792437411706487182528
+4.0711651639931289992091478779912
+4.7858438478542097982426639646292
+5.9840767662578002727968851104379
diff --git a/benchtests/slowsin.c b/benchtests/slowsin.c
new file mode 100644
index 0000000..b6809bd
--- /dev/null
+++ b/benchtests/slowsin.c
@@ -0,0 +1,19 @@
+/* Define slowsin.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define slowsin sin