diff -r 9227d2a2c080 -r c4d124ed9f8e patches/glibc/2_9/270-ldbl-nexttowardf.patch --- a/patches/glibc/2_9/270-ldbl-nexttowardf.patch Sat Apr 11 19:03:02 2009 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,68 +0,0 @@ -Original patch from: gentoo/src/patchsets/glibc/2.9/1073_all_glibc-ldbl-nexttowardf.patch - --= BEGIN original header =- -ripped from Debian - -this change was made to generic __nexttowardf, but not the long double version - -2008-05-05 Aurelien Jarno - - * sysdeps/ieee754/ldbl-128/s_nexttowardf.c: Include float.h. - (__nexttowardf): Use math_opt_barrier and - math_force_eval macros. If FLT_EVAL_METHOD is not 0, force - x to float using asm. - --= END original header =- - -diff -durN glibc-2_9.orig/sysdeps/ieee754/ldbl-128/s_nexttowardf.c glibc-2_9/sysdeps/ieee754/ldbl-128/s_nexttowardf.c ---- glibc-2_9.orig/sysdeps/ieee754/ldbl-128/s_nexttowardf.c 1999-07-14 02:09:42.000000000 +0200 -+++ glibc-2_9/sysdeps/ieee754/ldbl-128/s_nexttowardf.c 2009-02-02 22:00:59.000000000 +0100 -@@ -19,7 +19,8 @@ - #endif - - #include "math.h" --#include "math_private.h" -+#include -+#include - - #ifdef __STDC__ - float __nexttowardf(float x, long double y) -@@ -44,10 +45,12 @@ - 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,(u_int32_t)((hy>>32)&0x80000000)|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(hy<0||(ix>>23)>(iy>>48)-0x3f80 -@@ -67,13 +70,16 @@ - } - } - hy = hx&0x7f800000; -- if(hy>=0x7f800000) return x+x; /* overflow */ -+ if(hy>=0x7f800000) { -+ x = x+x; /* overflow */ -+ if (FLT_EVAL_METHOD != 0) -+ /* Force conversion to float. */ -+ asm ("" : "+m"(x)); -+ return x; -+ } - if(hy<0x00800000) { /* underflow */ -- float x2 = x*x; -- if(x2!=x) { /* raise underflow flag */ -- SET_FLOAT_WORD(x2,hx); -- return x2; -- } -+ float u = x*x; -+ math_force_eval (u); /* raise underflow flag */ - } - SET_FLOAT_WORD(x,hx); - return x;