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authorbde <bde@FreeBSD.org>2005-11-21 04:57:12 +0000
committerbde <bde@FreeBSD.org>2005-11-21 04:57:12 +0000
commitd8a5fc0b49835059d3f35f4b6e105b9c360dac79 (patch)
tree45bbeec89e517c4e748f40746486e2deedeb4076 /lib
parent3b3fcd18bf398cd942cf88cb7f5cc7a6aae1a25a (diff)
downloadFreeBSD-src-d8a5fc0b49835059d3f35f4b6e105b9c360dac79.zip
FreeBSD-src-d8a5fc0b49835059d3f35f4b6e105b9c360dac79.tar.gz
Mess up the "kernel" float trig function .c files with ifdefs so that
they can be #included in other .c files to give inline functions, and use them to inline the functions in most callers (not in e_lgammaf_r.c). __kernel_tanf() is too large and complicated for gcc to inline very well. An athlons, this gives a speed increase under favourable pipeline conditions of about 10% overall (larger for AXP, smaller for A64). E.g., on AXP, sinf() on uniformly distributed args in [-2Pi, 2Pi] now takes 30-56 cycles; it used to take 45-61 cycles; hardware fsin takes 65-129.
Diffstat (limited to 'lib')
-rw-r--r--lib/msun/src/k_cosf.c5
-rw-r--r--lib/msun/src/k_sinf.c5
-rw-r--r--lib/msun/src/k_tanf.c5
-rw-r--r--lib/msun/src/s_cosf.c4
-rw-r--r--lib/msun/src/s_sinf.c4
-rw-r--r--lib/msun/src/s_tanf.c2
6 files changed, 25 insertions, 0 deletions
diff --git a/lib/msun/src/k_cosf.c b/lib/msun/src/k_cosf.c
index 885af94..4e04fd8 100644
--- a/lib/msun/src/k_cosf.c
+++ b/lib/msun/src/k_cosf.c
@@ -14,9 +14,11 @@
* ====================================================
*/
+#ifndef INLINE_KERNEL_COSF
#ifndef lint
static char rcsid[] = "$FreeBSD$";
#endif
+#endif
#include "math.h"
#include "math_private.h"
@@ -28,6 +30,9 @@ C1 = 0xaaaaa5.0p-28, /* 0.041666645557 */
C2 = -0xb60615.0p-33, /* -0.0013887310633 */
C3 = 0xccf47d.0p-39; /* 0.000024432542887 */
+#ifdef INLINE_KERNEL_COSF
+extern inline
+#endif
float
__kernel_cosf(float x, float y)
{
diff --git a/lib/msun/src/k_sinf.c b/lib/msun/src/k_sinf.c
index d393db7..ad8d9de 100644
--- a/lib/msun/src/k_sinf.c
+++ b/lib/msun/src/k_sinf.c
@@ -14,9 +14,11 @@
* ====================================================
*/
+#ifndef INLINE_KERNEL_SINF
#ifndef lint
static char rcsid[] = "$FreeBSD$";
#endif
+#endif
#include "math.h"
#include "math_private.h"
@@ -29,6 +31,9 @@ S2 = 0x8888bb.0p-30, /* 0.0083333803341 */
S3 = -0xd02de1.0p-36, /* -0.00019853517006 */
S4 = 0xbe6dbe.0p-42; /* 0.0000028376084629 */
+#ifdef INLINE_KERNEL_SINF
+extern inline
+#endif
float
__kernel_sinf(float x, float y, int iy)
{
diff --git a/lib/msun/src/k_tanf.c b/lib/msun/src/k_tanf.c
index 377db78..cc498d5 100644
--- a/lib/msun/src/k_tanf.c
+++ b/lib/msun/src/k_tanf.c
@@ -12,9 +12,11 @@
* ====================================================
*/
+#ifndef INLINE_KERNEL_TANF
#ifndef lint
static char rcsid[] = "$FreeBSD$";
#endif
+#endif
#include "math.h"
#include "math_private.h"
@@ -32,6 +34,9 @@ T[] = {
0xeaf97e.0p-31, /* 0.0071708550677 */
};
+#ifdef INLINE_KERNEL_TANF
+extern inline
+#endif
float
__kernel_tanf(float x, float y, int iy)
{
diff --git a/lib/msun/src/s_cosf.c b/lib/msun/src/s_cosf.c
index ec7f0cf..ced11eb 100644
--- a/lib/msun/src/s_cosf.c
+++ b/lib/msun/src/s_cosf.c
@@ -18,7 +18,11 @@ static char rcsid[] = "$FreeBSD$";
#endif
#include "math.h"
+#define INLINE_KERNEL_COSF
+#define INLINE_KERNEL_SINF
#include "math_private.h"
+#include "k_cosf.c"
+#include "k_sinf.c"
/* Small multiples of pi/2 rounded to double precision. */
static const double
diff --git a/lib/msun/src/s_sinf.c b/lib/msun/src/s_sinf.c
index cac6e26..1e4270e 100644
--- a/lib/msun/src/s_sinf.c
+++ b/lib/msun/src/s_sinf.c
@@ -18,7 +18,11 @@ static char rcsid[] = "$FreeBSD$";
#endif
#include "math.h"
+#define INLINE_KERNEL_COSF
+#define INLINE_KERNEL_SINF
#include "math_private.h"
+#include "k_cosf.c"
+#include "k_sinf.c"
/* Small multiples of pi/2 rounded to double precision. */
static const double
diff --git a/lib/msun/src/s_tanf.c b/lib/msun/src/s_tanf.c
index 852dc12..470b336 100644
--- a/lib/msun/src/s_tanf.c
+++ b/lib/msun/src/s_tanf.c
@@ -18,7 +18,9 @@ static char rcsid[] = "$FreeBSD$";
#endif
#include "math.h"
+#define INLINE_KERNEL_TANF
#include "math_private.h"
+#include "k_tanf.c"
/* Small multiples of pi/2 rounded to double precision. */
static const double
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