AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-12-21 02:10:05 +00:00
Code Issues Packages Projects Releases Wiki Activity

(__floorf): Don't depend on inlining, duplicate the code.

Browse Source
This commit is contained in:
Ulrich Drepper 1999-01-29 10:57:31 +00:00
parent a87b0e3624
commit 068bbaf6e0
1 changed files with 22 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
sysdeps/alpha/fpu/s_floorf.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1998 Free Software Foundation, Inc. /* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
Contributed by Richard Henderson. Contributed by Richard Henderson.
@ -29,7 +29,27 @@
float float
__floorf (float x) __floorf (float x)
{ {
return __i_floorf(x); /* Check not zero since floor(-0) == -0. */
if (x != 0 && fabsf (x) < 16777216.0f) /* 1 << FLT_MANT_DIG */
{
/* Note that Alpha S_Floating is stored in registers in a
restricted T_Floating format, so we don't even need to
convert back to S_Floating in the end. The initial
conversion to T_Floating is needed to handle denormals. */
float __tmp1, __tmp2;
__asm ("cvtst/s %3,%2\n\t"
#ifdef _IEEE_FP_INEXACT
"cvttq/svim %2,%1\n\t"
#else
"cvttq/svm %2,%1\n\t"
#endif
"cvtqt/m %1,%0\n\t"
: "=f"(x), "=&f"(__tmp1), "=&f"(__tmp2)
: "f"(x));
}
return x;
} }
weak_alias (__floorf, floorf) weak_alias (__floorf, floorf)