1.1 --- a/patches/glibc/2_9/270-ldbl-nexttowardf.patch Sat Apr 11 19:03:02 2009 +0000
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,68 +0,0 @@
1.4 -Original patch from: gentoo/src/patchsets/glibc/2.9/1073_all_glibc-ldbl-nexttowardf.patch
1.5 -
1.6 --= BEGIN original header =-
1.7 -ripped from Debian
1.8 -
1.9 -this change was made to generic __nexttowardf, but not the long double version
1.10 -
1.11 -2008-05-05 Aurelien Jarno <aurelien@aurel32.net>
1.12 -
1.13 - * sysdeps/ieee754/ldbl-128/s_nexttowardf.c: Include float.h.
1.14 - (__nexttowardf): Use math_opt_barrier and
1.15 - math_force_eval macros. If FLT_EVAL_METHOD is not 0, force
1.16 - x to float using asm.
1.17 -
1.18 --= END original header =-
1.19 -
1.20 -diff -durN glibc-2_9.orig/sysdeps/ieee754/ldbl-128/s_nexttowardf.c glibc-2_9/sysdeps/ieee754/ldbl-128/s_nexttowardf.c
1.21 ---- glibc-2_9.orig/sysdeps/ieee754/ldbl-128/s_nexttowardf.c 1999-07-14 02:09:42.000000000 +0200
1.22 -+++ glibc-2_9/sysdeps/ieee754/ldbl-128/s_nexttowardf.c 2009-02-02 22:00:59.000000000 +0100
1.23 -@@ -19,7 +19,8 @@
1.24 - #endif
1.25 -
1.26 - #include "math.h"
1.27 --#include "math_private.h"
1.28 -+#include <math_private.h>
1.29 -+#include <float.h>
1.30 -
1.31 - #ifdef __STDC__
1.32 - float __nexttowardf(float x, long double y)
1.33 -@@ -44,10 +45,12 @@
1.34 - return x+y;
1.35 - if((long double) x==y) return y; /* x=y, return y */
1.36 - if(ix==0) { /* x == 0 */
1.37 -- float x2;
1.38 -+ float u;
1.39 - SET_FLOAT_WORD(x,(u_int32_t)((hy>>32)&0x80000000)|1);/* return +-minsub*/
1.40 -- x2 = x*x;
1.41 -- if(x2==x) return x2; else return x; /* raise underflow flag */
1.42 -+ u = math_opt_barrier (x);
1.43 -+ u = u * u;
1.44 -+ math_force_eval (u); /* raise underflow flag */
1.45 -+ return x;
1.46 - }
1.47 - if(hx>=0) { /* x > 0 */
1.48 - if(hy<0||(ix>>23)>(iy>>48)-0x3f80
1.49 -@@ -67,13 +70,16 @@
1.50 - }
1.51 - }
1.52 - hy = hx&0x7f800000;
1.53 -- if(hy>=0x7f800000) return x+x; /* overflow */
1.54 -+ if(hy>=0x7f800000) {
1.55 -+ x = x+x; /* overflow */
1.56 -+ if (FLT_EVAL_METHOD != 0)
1.57 -+ /* Force conversion to float. */
1.58 -+ asm ("" : "+m"(x));
1.59 -+ return x;
1.60 -+ }
1.61 - if(hy<0x00800000) { /* underflow */
1.62 -- float x2 = x*x;
1.63 -- if(x2!=x) { /* raise underflow flag */
1.64 -- SET_FLOAT_WORD(x2,hx);
1.65 -- return x2;
1.66 -- }
1.67 -+ float u = x*x;
1.68 -+ math_force_eval (u); /* raise underflow flag */
1.69 - }
1.70 - SET_FLOAT_WORD(x,hx);
1.71 - return x;