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[PATCH] Add sin (fast and slow paths) to benchmark
- From: Siddhesh Poyarekar <siddhesh at redhat dot com>
- To: libc-alpha at sourceware dot org
- Date: Tue, 2 Apr 2013 16:14:28 +0530
- Subject: [PATCH] Add sin (fast and slow paths) to benchmark
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