Imported gcc-4.4.3

[msp430-gcc.git] / libjava / java / lang / e_fmod.c

diff --git a/libjava/java/lang/e_fmod.c b/libjava/java/lang/e_fmod.c
deleted file mode 100644 (file)
index 1cf0990..0000000
--- a/libjava/java/lang/e_fmod.c
+++ /dev/null
@@ -1,140 +0,0 @@
-
-/* @(#)e_fmod.c 5.1 93/09/24 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-/*
- * __ieee754_fmod(x,y)
- * Return x mod y in exact arithmetic
- * Method: shift and subtract
- */
-
-#include "fdlibm.h"
-
-#ifndef _DOUBLE_IS_32BITS
-
-#ifdef __STDC__
-static const double one = 1.0, Zero[] = {0.0, -0.0,};
-#else
-static double one = 1.0, Zero[] = {0.0, -0.0,};
-#endif
-
-#ifdef __STDC__
-       double __ieee754_fmod(double x, double y)
-#else
-       double __ieee754_fmod(x,y)
-       double x,y ;
-#endif
-{
-       int32_t n,hx,hy,hz,ix,iy,sx,i;
-       uint32_t lx,ly,lz;
-
-       EXTRACT_WORDS(hx,lx,x);
-       EXTRACT_WORDS(hy,ly,y);
-       sx = hx&0x80000000;             /* sign of x */
-       hx ^=sx;                /* |x| */
-       hy &= 0x7fffffff;       /* |y| */
-
-    /* purge off exception values */
-       if((hy|ly)==0||(hx>=0x7ff00000)||       /* y=0,or x not finite */
-         ((hy|((ly|-ly)>>31))>0x7ff00000))     /* or y is NaN */
-           return (x*y)/(x*y);
-       if(hx<=hy) {
-           if((hx<hy)||(lx<ly)) return x;      /* |x|<|y| return x */
-           if(lx==ly)
-               return Zero[(uint32_t)sx>>31];  /* |x|=|y| return x*0*/
-       }
-
-    /* determine ix = ilogb(x) */
-       if(hx<0x00100000) {     /* subnormal x */
-           if(hx==0) {
-               for (ix = -1043, i=lx; i>0; i<<=1) ix -=1;
-           } else {
-               for (ix = -1022,i=(hx<<11); i>0; i<<=1) ix -=1;
-           }
-       } else ix = (hx>>20)-1023;
-
-    /* determine iy = ilogb(y) */
-       if(hy<0x00100000) {     /* subnormal y */
-           if(hy==0) {
-               for (iy = -1043, i=ly; i>0; i<<=1) iy -=1;
-           } else {
-               for (iy = -1022,i=(hy<<11); i>0; i<<=1) iy -=1;
-           }
-       } else iy = (hy>>20)-1023;
-
-    /* set up {hx,lx}, {hy,ly} and align y to x */
-       if(ix >= -1022)
-           hx = 0x00100000|(0x000fffff&hx);
-       else {          /* subnormal x, shift x to normal */
-           n = -1022-ix;
-           if(n<=31) {
-               hx = (hx<<n)|(lx>>(32-n));
-               lx <<= n;
-           } else {
-               hx = lx<<(n-32);
-               lx = 0;
-           }
-       }
-       if(iy >= -1022)
-           hy = 0x00100000|(0x000fffff&hy);
-       else {          /* subnormal y, shift y to normal */
-           n = -1022-iy;
-           if(n<=31) {
-               hy = (hy<<n)|(ly>>(32-n));
-               ly <<= n;
-           } else {
-               hy = ly<<(n-32);
-               ly = 0;
-           }
-       }
-
-    /* fix point fmod */
-       n = ix - iy;
-       while(n--) {
-           hz=hx-hy;lz=lx-ly; if(lx<ly) hz -= 1;
-           if(hz<0){hx = hx+hx+(lx>>31); lx = lx+lx;}
-           else {
-               if((hz|lz)==0)          /* return sign(x)*0 */
-                   return Zero[(uint32_t)sx>>31];
-               hx = hz+hz+(lz>>31); lx = lz+lz;
-           }
-       }
-       hz=hx-hy;lz=lx-ly; if(lx<ly) hz -= 1;
-       if(hz>=0) {hx=hz;lx=lz;}
-
-    /* convert back to floating value and restore the sign */
-       if((hx|lx)==0)                  /* return sign(x)*0 */
-           return Zero[(uint32_t)sx>>31];
-       while(hx<0x00100000) {          /* normalize x */
-           hx = hx+hx+(lx>>31); lx = lx+lx;
-           iy -= 1;
-       }
-       if(iy>= -1022) {        /* normalize output */
-           hx = ((hx-0x00100000)|((iy+1023)<<20));
-           INSERT_WORDS(x,hx|sx,lx);
-       } else {                /* subnormal output */
-           n = -1022 - iy;
-           if(n<=20) {
-               lx = (lx>>n)|((uint32_t)hx<<(32-n));
-               hx >>= n;
-           } else if (n<=31) {
-               lx = (hx<<(32-n))|(lx>>n); hx = sx;
-           } else {
-               lx = hx>>(n-32); hx = sx;
-           }
-           INSERT_WORDS(x,hx|sx,lx);
-           x *= one;           /* create necessary signal */
-       }
-       return x;               /* exact output */
-}
-
-#endif /* defined(_DOUBLE_IS_32BITS) */