aboutsummaryrefslogtreecommitdiff
path: root/math/math_private.h
diff options
context:
space:
mode:
authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /math/math_private.h
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
downloadglibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar
glibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.gz
glibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.bz2
glibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.zip
2.5-18.1
Diffstat (limited to 'math/math_private.h')
-rw-r--r--math/math_private.h21
1 files changed, 20 insertions, 1 deletions
diff --git a/math/math_private.h b/math/math_private.h
index f545841df0..129646f8c5 100644
--- a/math/math_private.h
+++ b/math/math_private.h
@@ -11,7 +11,6 @@
/*
* from: @(#)fdlibm.h 5.1 93/09/24
- * $Id$
*/
#ifndef _MATH_PRIVATE_H_
@@ -192,6 +191,10 @@ extern int __kernel_rem_pio2 (double*,double*,int,int,int, const int32_t*);
/* internal functions. */
extern double __copysign (double x, double __y);
+#if __GNUC_PREREQ (4, 0)
+extern inline double __copysign (double x, double y)
+{ return __builtin_copysign (x, y); }
+#endif
/* ieee style elementary float functions */
extern float __ieee754_sqrtf (float);
@@ -235,6 +238,10 @@ extern int __kernel_rem_pio2f (float*,float*,int,int,int, const int32_t*);
/* internal functions. */
extern float __copysignf (float x, float __y);
+#if __GNUC_PREREQ (4, 0)
+extern inline float __copysignf (float x, float y)
+{ return __builtin_copysignf (x, y); }
+#endif
/* ieee style elementary long double functions */
extern long double __ieee754_sqrtl (long double);
@@ -298,6 +305,12 @@ extern long double fabsl (long double x);
extern void __sincosl (long double, long double *, long double *);
extern long double __logbl (long double x);
extern long double __significandl (long double x);
+
+#if __GNUC_PREREQ (4, 0)
+extern inline long double __copysignl (long double x, long double y)
+{ return __builtin_copysignl (x, y); }
+#endif
+
#endif
/* Prototypes for functions of the IBM Accurate Mathematical Library. */
@@ -319,4 +332,10 @@ extern double __slowexp (double __x);
extern double __slowpow (double __x, double __y, double __z);
extern void __docos (double __x, double __dx, double __v[]);
+#ifndef math_opt_barrier
+#define math_opt_barrier(x) \
+({ __typeof (x) __x = x; __asm ("" : "+m" (__x)); __x; })
+#define math_force_eval(x) __asm __volatile ("" : : "m" (x))
+#endif
+
#endif /* _MATH_PRIVATE_H_ */