svn commit: r234533 - stable/7/lib/msun/src
David Schultz
das at FreeBSD.org
Sat Apr 21 06:59:49 UTC 2012
Author: das
Date: Sat Apr 21 06:59:48 2012
New Revision: 234533
URL: http://svn.freebsd.org/changeset/base/234533
Log:
MFC r233973 (partial):
Fix bugs in remquo{,f}.
Modified:
stable/7/lib/msun/src/s_remquo.c
stable/7/lib/msun/src/s_remquof.c
Directory Properties:
stable/7/lib/msun/ (props changed)
Modified: stable/7/lib/msun/src/s_remquo.c
==============================================================================
--- stable/7/lib/msun/src/s_remquo.c Sat Apr 21 06:29:44 2012 (r234532)
+++ stable/7/lib/msun/src/s_remquo.c Sat Apr 21 06:59:48 2012 (r234533)
@@ -49,7 +49,7 @@ remquo(double x, double y, int *quo)
goto fixup; /* |x|<|y| return x or x-y */
}
if(lx==ly) {
- *quo = 1;
+ *quo = (sxy ? -1 : 1);
return Zero[(u_int32_t)sx>>31]; /* |x|=|y| return x*0*/
}
}
@@ -112,6 +112,7 @@ remquo(double x, double y, int *quo)
/* convert back to floating value and restore the sign */
if((hx|lx)==0) { /* return sign(x)*0 */
+ q &= 0x7fffffff;
*quo = (sxy ? -q : q);
return Zero[(u_int32_t)sx>>31];
}
@@ -127,9 +128,9 @@ remquo(double x, double y, int *quo)
lx = (lx>>n)|((u_int32_t)hx<<(32-n));
hx >>= n;
} else if (n<=31) {
- lx = (hx<<(32-n))|(lx>>n); hx = sx;
+ lx = (hx<<(32-n))|(lx>>n); hx = 0;
} else {
- lx = hx>>(n-32); hx = sx;
+ lx = hx>>(n-32); hx = 0;
}
}
fixup:
Modified: stable/7/lib/msun/src/s_remquof.c
==============================================================================
--- stable/7/lib/msun/src/s_remquof.c Sat Apr 21 06:29:44 2012 (r234532)
+++ stable/7/lib/msun/src/s_remquof.c Sat Apr 21 06:59:48 2012 (r234533)
@@ -46,7 +46,7 @@ remquof(float x, float y, int *quo)
q = 0;
goto fixup; /* |x|<|y| return x or x-y */
} else if(hx==hy) {
- *quo = 1;
+ *quo = (sxy ? -1 : 1);
return Zero[(u_int32_t)sx>>31]; /* |x|=|y| return x*0*/
}
@@ -88,6 +88,7 @@ remquof(float x, float y, int *quo)
/* convert back to floating value and restore the sign */
if(hx==0) { /* return sign(x)*0 */
+ q &= 0x7fffffff;
*quo = (sxy ? -q : q);
return Zero[(u_int32_t)sx>>31];
}
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