diff options
Diffstat (limited to 'sysdeps/alpha/fpu/s_floorf.c')
| -rw-r--r-- | sysdeps/alpha/fpu/s_floorf.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/sysdeps/alpha/fpu/s_floorf.c b/sysdeps/alpha/fpu/s_floorf.c index 7502b6781e..9e693642dd 100644 --- a/sysdeps/alpha/fpu/s_floorf.c +++ b/sysdeps/alpha/fpu/s_floorf.c @@ -17,14 +17,12 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#ifndef __USE_EXTERN_INLINES -#define __USE_EXTERN_INLINES -#endif -#define __floorf __i_floorf - #include <math.h> -#undef __floorf + +/* Use the -inf rounding mode conversion instructions to implement + floor. We note when the exponent is large enough that the value + must be integral, as this avoids unpleasant integer overflows. */ float __floorf (float x) @@ -37,7 +35,7 @@ __floorf (float x) convert back to S_Floating in the end. The initial conversion to T_Floating is needed to handle denormals. */ - float __tmp1, __tmp2; + float tmp1, tmp2; __asm ("cvtst/s %3,%2\n\t" #ifdef _IEEE_FP_INEXACT @@ -46,7 +44,7 @@ __floorf (float x) "cvttq/svm %2,%1\n\t" #endif "cvtqt/m %1,%0\n\t" - : "=f"(x), "=&f"(__tmp1), "=&f"(__tmp2) + : "=f"(x), "=&f"(tmp1), "=&f"(tmp2) : "f"(x)); } return x; |