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author | Jakub Jelinek <jakub@redhat.com> | 2007-07-31 13:33:18 +0000 |
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committer | Jakub Jelinek <jakub@redhat.com> | 2007-07-31 13:33:18 +0000 |
commit | 32c075e1f01849e161724bbd400ba77244e482cc (patch) | |
tree | 5f083a3f352104f32bb6c902d57fa3f294bd8d4d /sysdeps/ieee754/ldbl-96/s_nexttowardf.c | |
parent | d6220e9ee38c1c9285221b023346201ec5f511b3 (diff) | |
download | glibc-32c075e1f01849e161724bbd400ba77244e482cc.tar.gz glibc-32c075e1f01849e161724bbd400ba77244e482cc.tar.xz glibc-32c075e1f01849e161724bbd400ba77244e482cc.zip |
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Diffstat (limited to 'sysdeps/ieee754/ldbl-96/s_nexttowardf.c')
-rw-r--r-- | sysdeps/ieee754/ldbl-96/s_nexttowardf.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/sysdeps/ieee754/ldbl-96/s_nexttowardf.c b/sysdeps/ieee754/ldbl-96/s_nexttowardf.c index a1c38b5d4c..6357975ffc 100644 --- a/sysdeps/ieee754/ldbl-96/s_nexttowardf.c +++ b/sysdeps/ieee754/ldbl-96/s_nexttowardf.c @@ -18,7 +18,8 @@ static char rcsid[] = "$NetBSD: $"; #endif #include "math.h" -#include "math_private.h" +#include <math_private.h> +#include <float.h> #ifdef __STDC__ float __nexttowardf(float x, long double y) @@ -41,10 +42,12 @@ static char rcsid[] = "$NetBSD: $"; return x+y; if((long double) x==y) return y; /* x=y, return y */ if(ix==0) { /* x == 0 */ - float x2; + float u; SET_FLOAT_WORD(x,((esy&0x8000)<<16)|1);/* return +-minsub*/ - x2 = x*x; - if(x2==x) return x2; else return x; /* raise underflow flag */ + u = math_opt_barrier (x); + u = u * u; + math_force_eval (u); /* raise underflow flag */ + return x; } if(hx>=0) { /* x > 0 */ if(esy>=0x8000||((ix>>23)&0xff)>iy-0x3f80 @@ -64,13 +67,16 @@ static char rcsid[] = "$NetBSD: $"; } } hy = hx&0x7f800000; - if(hy>=0x7f800000) return x+x; /* overflow */ - if(hy<0x00800000) { /* underflow */ - float x2 = x*x; - if(x2!=x) { /* raise underflow flag */ - SET_FLOAT_WORD(x2,hx); - return x2; - } + if(hy>=0x7f800000) { + x = x+x; /* overflow */ + if (FLT_EVAL_METHOD != 0) + /* Force conversion to float. */ + asm ("" : "+m"(x)); + return x; + } + if(hy<0x00800000) { + float u = x*x; /* underflow */ + math_force_eval (u); /* raise underflow flag */ } SET_FLOAT_WORD(x,hx); return x; |