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, 130 deletions

diff --git a/sysdeps/ieee754/flt-32/s_expm1f.c b/sysdeps/ieee754/flt-32/s_expm1f.c
deleted file mode 100644
index c515d25e28..0000000000
--- a/sysdeps/ieee754/flt-32/s_expm1f.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/* s_expm1f.c -- float version of s_expm1.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 <errno.h>
-#include <float.h>
-#include <math.h>
-#include <math_private.h>
-
-static const float huge = 1.0e+30;
-static const float tiny = 1.0e-30;
-
-static const float
-one		= 1.0,
-o_threshold	= 8.8721679688e+01,/* 0x42b17180 */
-ln2_hi		= 6.9313812256e-01,/* 0x3f317180 */
-ln2_lo		= 9.0580006145e-06,/* 0x3717f7d1 */
-invln2		= 1.4426950216e+00,/* 0x3fb8aa3b */
-	/* scaled coefficients related to expm1 */
-Q1  =  -3.3333335072e-02, /* 0xbd088889 */
-Q2  =   1.5873016091e-03, /* 0x3ad00d01 */
-Q3  =  -7.9365076090e-05, /* 0xb8a670cd */
-Q4  =   4.0082177293e-06, /* 0x36867e54 */
-Q5  =  -2.0109921195e-07; /* 0xb457edbb */
-
-float
-__expm1f(float x)
-{
-	float y,hi,lo,c,t,e,hxs,hfx,r1;
-	int32_t k,xsb;
-	u_int32_t hx;
-
-	GET_FLOAT_WORD(hx,x);
-	xsb = hx&0x80000000;		/* sign bit of x */
-	if(xsb==0) y=x; else y= -x;	/* y = |x| */
-	hx &= 0x7fffffff;		/* high word of |x| */
-
-    /* filter out huge and non-finite argument */
-	if(hx >= 0x4195b844) {			/* if |x|>=27*ln2 */
-	    if(hx >= 0x42b17218) {		/* if |x|>=88.721... */
-		if(hx>0x7f800000)
-		    return x+x;		 /* NaN */
-		if(hx==0x7f800000)
-		    return (xsb==0)? x:-1.0;/* exp(+-inf)={inf,-1} */
-		if(x > o_threshold) {
-		  __set_errno (ERANGE);
-		  return huge*huge; /* overflow */
-		}
-	    }
-	    if(xsb!=0) { /* x < -27*ln2, return -1.0 with inexact */
-		math_force_eval(x+tiny);/* raise inexact */
-		return tiny-one;	/* return -1 */
-	    }
-	}
-
-    /* argument reduction */
-	if(hx > 0x3eb17218) {		/* if  |x| > 0.5 ln2 */
-	    if(hx < 0x3F851592) {	/* and |x| < 1.5 ln2 */
-		if(xsb==0)
-		    {hi = x - ln2_hi; lo =  ln2_lo;  k =  1;}
-		else
-		    {hi = x + ln2_hi; lo = -ln2_lo;  k = -1;}
-	    } else {
-		k  = invln2*x+((xsb==0)?(float)0.5:(float)-0.5);
-		t  = k;
-		hi = x - t*ln2_hi;	/* t*ln2_hi is exact here */
-		lo = t*ln2_lo;
-	    }
-	    x  = hi - lo;
-	    c  = (hi-x)-lo;
-	}
-	else if(hx < 0x33000000) {	/* when |x|<2**-25, return x */
-	    math_check_force_underflow (x);
-	    t = huge+x;	/* return x with inexact flags when x!=0 */
-	    return x - (t-(huge+x));
-	}
-	else k = 0;
-
-    /* x is now in primary range */
-	hfx = (float)0.5*x;
-	hxs = x*hfx;
-	r1 = one+hxs*(Q1+hxs*(Q2+hxs*(Q3+hxs*(Q4+hxs*Q5))));
-	t  = (float)3.0-r1*hfx;
-	e  = hxs*((r1-t)/((float)6.0 - x*t));
-	if(k==0) return x - (x*e-hxs);		/* c is 0 */
-	else {
-	    e  = (x*(e-c)-c);
-	    e -= hxs;
-	    if(k== -1) return (float)0.5*(x-e)-(float)0.5;
-	    if(k==1) {
-		if(x < (float)-0.25) return -(float)2.0*(e-(x+(float)0.5));
-		else	      return  one+(float)2.0*(x-e);
-	    }
-	    if (k <= -2 || k>56) {   /* suffice to return exp(x)-1 */
-		int32_t i;
-		y = one-(e-x);
-		GET_FLOAT_WORD(i,y);
-		SET_FLOAT_WORD(y,i+(k<<23));	/* add k to y's exponent */
-		return y-one;
-	    }
-	    t = one;
-	    if(k<23) {
-		int32_t i;
-		SET_FLOAT_WORD(t,0x3f800000 - (0x1000000>>k)); /* t=1-2^-k */
-		y = t-(e-x);
-		GET_FLOAT_WORD(i,y);
-		SET_FLOAT_WORD(y,i+(k<<23));	/* add k to y's exponent */
-	   } else {
-		int32_t i;
-		SET_FLOAT_WORD(t,((0x7f-k)<<23));	/* 2^-k */
-		y = x-(e+t);
-		y += one;
-		GET_FLOAT_WORD(i,y);
-		SET_FLOAT_WORD(y,i+(k<<23));	/* add k to y's exponent */
-	    }
-	}
-	return y;
-}
-weak_alias (__expm1f, expm1f)