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(__floorf): Copy commentary from bits/mathinclude.h. Kill unused defines.

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This commit is contained in:
Ulrich Drepper 1999-01-29 16:56:01 +00:00
parent 92a38c359c
commit 8380d4887d
1 changed files with 6 additions and 8 deletions
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14
sysdeps/alpha/fpu/s_floorf.c
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@ -17,14 +17,12 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */ Boston, MA 02111-1307, USA. */
#ifndef __USE_EXTERN_INLINES
#define __USE_EXTERN_INLINES
#endif
#define __floorf __i_floorf
#include <math.h> #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 float
__floorf (float x) __floorf (float x)
@ -37,7 +35,7 @@ __floorf (float x)
convert back to S_Floating in the end. The initial convert back to S_Floating in the end. The initial
conversion to T_Floating is needed to handle denormals. */ conversion to T_Floating is needed to handle denormals. */
float __tmp1, __tmp2; float tmp1, tmp2;
__asm ("cvtst/s %3,%2\n\t" __asm ("cvtst/s %3,%2\n\t"
#ifdef _IEEE_FP_INEXACT #ifdef _IEEE_FP_INEXACT
@ -46,7 +44,7 @@ __floorf (float x)
"cvttq/svm %2,%1\n\t" "cvttq/svm %2,%1\n\t"
#endif #endif
"cvtqt/m %1,%0\n\t" "cvtqt/m %1,%0\n\t"
: "=f"(x), "=&f"(__tmp1), "=&f"(__tmp2) : "=f"(x), "=&f"(tmp1), "=&f"(tmp2)
: "f"(x)); : "f"(x));
} }
return x; return x;