Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 0 insertions, 94 deletions

diff --git a/sysdeps/ieee754/flt-32/e_atan2f.c b/sysdeps/ieee754/flt-32/e_atan2f.c
deleted file mode 100644
index 29eefc0dd6..0000000000
--- a/sysdeps/ieee754/flt-32/e_atan2f.c
+++ /dev/null
@@ -1,94 +0,0 @@
-/* e_atan2f.c -- float version of e_atan2.c.
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- */
-
-/*
- * ====================================================
- * 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.
- * ====================================================
- */
-
-#include <math.h>
-#include <math_private.h>
-
-static const float
-tiny  = 1.0e-30,
-zero  = 0.0,
-pi_o_4  = 7.8539818525e-01,  /* 0x3f490fdb */
-pi_o_2  = 1.5707963705e+00,  /* 0x3fc90fdb */
-pi      = 3.1415927410e+00,  /* 0x40490fdb */
-pi_lo   = -8.7422776573e-08; /* 0xb3bbbd2e */
-
-float
-__ieee754_atan2f (float y, float x)
-{
-	float z;
-	int32_t k,m,hx,hy,ix,iy;
-
-	GET_FLOAT_WORD(hx,x);
-	ix = hx&0x7fffffff;
-	GET_FLOAT_WORD(hy,y);
-	iy = hy&0x7fffffff;
-	if((ix>0x7f800000)||
-	   (iy>0x7f800000))	/* x or y is NaN */
-	   return x+y;
-	if(hx==0x3f800000) return __atanf(y);   /* x=1.0 */
-	m = ((hy>>31)&1)|((hx>>30)&2);	/* 2*sign(x)+sign(y) */
-
-    /* when y = 0 */
-	if(iy==0) {
-	    switch(m) {
-		case 0:
-		case 1: return y;	/* atan(+-0,+anything)=+-0 */
-		case 2: return  pi+tiny;/* atan(+0,-anything) = pi */
-		case 3: return -pi-tiny;/* atan(-0,-anything) =-pi */
-	    }
-	}
-    /* when x = 0 */
-	if(ix==0) return (hy<0)?  -pi_o_2-tiny: pi_o_2+tiny;
-
-    /* when x is INF */
-	if(ix==0x7f800000) {
-	    if(iy==0x7f800000) {
-		switch(m) {
-		    case 0: return  pi_o_4+tiny;/* atan(+INF,+INF) */
-		    case 1: return -pi_o_4-tiny;/* atan(-INF,+INF) */
-		    case 2: return  (float)3.0*pi_o_4+tiny;/*atan(+INF,-INF)*/
-		    case 3: return (float)-3.0*pi_o_4-tiny;/*atan(-INF,-INF)*/
-		}
-	    } else {
-		switch(m) {
-		    case 0: return  zero  ;	/* atan(+...,+INF) */
-		    case 1: return -zero  ;	/* atan(-...,+INF) */
-		    case 2: return  pi+tiny  ;	/* atan(+...,-INF) */
-		    case 3: return -pi-tiny  ;	/* atan(-...,-INF) */
-		}
-	    }
-	}
-    /* when y is INF */
-	if(iy==0x7f800000) return (hy<0)? -pi_o_2-tiny: pi_o_2+tiny;
-
-    /* compute y/x */
-	k = (iy-ix)>>23;
-	if(k > 60) z=pi_o_2+(float)0.5*pi_lo;	/* |y/x| >  2**60 */
-	else if(hx<0&&k<-60) z=0.0;	/* |y|/x < -2**60 */
-	else z=__atanf(fabsf(y/x));	/* safe to do y/x */
-	switch (m) {
-	    case 0: return       z  ;	/* atan(+,+) */
-	    case 1: {
-		      u_int32_t zh;
-		      GET_FLOAT_WORD(zh,z);
-		      SET_FLOAT_WORD(z,zh ^ 0x80000000);
-		    }
-		    return       z  ;	/* atan(-,+) */
-	    case 2: return  pi-(z-pi_lo);/* atan(+,-) */
-	    default: /* case 3 */
-		    return  (z-pi_lo)-pi;/* atan(-,-) */
-	}
-}
-strong_alias (__ieee754_atan2f, __atan2f_finite)