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-rw-r--r--sysdeps/powerpc/fpu/bits/mathinline.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/sysdeps/powerpc/fpu/bits/mathinline.h b/sysdeps/powerpc/fpu/bits/mathinline.h
index e692df9..d9206d4 100644
--- a/sysdeps/powerpc/fpu/bits/mathinline.h
+++ b/sysdeps/powerpc/fpu/bits/mathinline.h
@@ -121,4 +121,56 @@ fdimf (float __x, float __y) __THROW
#endif /* __USE_ISOC99 */
#endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */
+
+/* This code is used internally in the GNU libc. */
+# ifdef __LIBC_INTERNAL_MATH_INLINES
+
+#include <sysdep.h>
+#include <ldsodefs.h>
+#include <dl-procinfo.h>
+
+extern double __slow_ieee754_sqrt (double);
+__MATH_INLINE double
+__ieee754_sqrt (double __x)
+{
+ double __z;
+
+ /* If the CPU is 64-bit we can use the optional FP instructions we. */
+ if ((GLRO(dl_hwcap) & PPC_FEATURE_64) != 0)
+ {
+ /* Volatile is required to prevent the compiler from moving the
+ fsqrt instruction above the branch. */
+ __asm __volatile (
+ " fsqrt %0,%1\n"
+ : "=f" (__z)
+ : "f" (__x));
+ }
+ else
+ __z = __slow_ieee754_sqrt(__x);
+
+ return __z;
+}
+
+extern float __slow_ieee754_sqrtf (float);
+__MATH_INLINE float
+__ieee754_sqrtf (float __x)
+{
+ float __z;
+
+ /* If the CPU is 64-bit we can use the optional FP instructions we. */
+ if ((GLRO(dl_hwcap) & PPC_FEATURE_64) != 0)
+ {
+ /* Volatile is required to prevent the compiler from moving the
+ fsqrts instruction above the branch. */
+ __asm __volatile (
+ " fsqrts %0,%1\n"
+ : "=f" (__z)
+ : "f" (__x));
+ }
+ else
+ __z = __slow_ieee754_sqrtf(__x);
+
+ return __z;
+}
+# endif /* __LIBC_INTERNAL_MATH_INLINES */
#endif /* __GNUC__ && !_SOFT_FLOAT */