Module Name: src
Committed By: joerg
Date: Wed Oct 22 10:32:50 UTC 2014
Modified Files:
src/lib/libm/src: s_copysignl.c
src/sys/arch/powerpc/include: ieee.h math.h
Log Message:
Support copysignl on PowerPC.
To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/lib/libm/src/s_copysignl.c
cvs rdiff -u -r1.5 -r1.6 src/sys/arch/powerpc/include/ieee.h
cvs rdiff -u -r1.4 -r1.5 src/sys/arch/powerpc/include/math.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/lib/libm/src/s_copysignl.c
diff -u src/lib/libm/src/s_copysignl.c:1.2 src/lib/libm/src/s_copysignl.c:1.3
--- src/lib/libm/src/s_copysignl.c:1.2 Fri Sep 17 20:39:39 2010
+++ src/lib/libm/src/s_copysignl.c Wed Oct 22 10:32:50 2014
@@ -1,4 +1,4 @@
-/* $NetBSD: s_copysignl.c,v 1.2 2010/09/17 20:39:39 christos Exp $ */
+/* $NetBSD: s_copysignl.c,v 1.3 2014/10/22 10:32:50 joerg Exp $ */
/*-
* Copyright (c) 2010 The NetBSD Foundation, Inc.
@@ -26,7 +26,7 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: s_copysignl.c,v 1.2 2010/09/17 20:39:39 christos Exp $");
+__RCSID("$NetBSD: s_copysignl.c,v 1.3 2014/10/22 10:32:50 joerg Exp $");
#include <math.h>
#include <machine/ieee.h>
@@ -48,4 +48,17 @@ copysignl(long double x, long double y)
return (ux.extu_ld);
}
+#elif defined(__HAVE_IBM_LONGDOUBLE)
+long double
+copysignl(long double x, long double y)
+{
+ union ldbl_u ux, uy;
+
+ ux.ldblu_ld = x;
+ uy.ldblu_ld = y;
+ ux.ldblu_d[0] = copysign(ux.ldblu_d[0], uy.ldblu_d[0]);
+ ux.ldblu_d[1] = copysign(ux.ldblu_d[1], uy.ldblu_d[1]);
+
+ return ux.ldblu_ld;
+}
#endif
Index: src/sys/arch/powerpc/include/ieee.h
diff -u src/sys/arch/powerpc/include/ieee.h:1.5 src/sys/arch/powerpc/include/ieee.h:1.6
--- src/sys/arch/powerpc/include/ieee.h:1.5 Sun Dec 11 12:18:43 2005
+++ src/sys/arch/powerpc/include/ieee.h Wed Oct 22 10:32:50 2014
@@ -1,4 +1,4 @@
-/* $NetBSD: ieee.h,v 1.5 2005/12/11 12:18:43 christos Exp $ */
+/* $NetBSD: ieee.h,v 1.6 2014/10/22 10:32:50 joerg Exp $ */
#include <sys/ieee754.h>
@@ -11,3 +11,8 @@
#define SNG_QUIETNAN (1 << 22)
#define DBL_QUIETNAN (1 << 19)
#endif
+
+union ldbl_u {
+ long double ldblu_ld;
+ double ldblu_d[2];
+};
Index: src/sys/arch/powerpc/include/math.h
diff -u src/sys/arch/powerpc/include/math.h:1.4 src/sys/arch/powerpc/include/math.h:1.5
--- src/sys/arch/powerpc/include/math.h:1.4 Tue Feb 19 13:08:15 2002
+++ src/sys/arch/powerpc/include/math.h Wed Oct 22 10:32:50 2014
@@ -1,3 +1,4 @@
-/* $NetBSD: math.h,v 1.4 2002/02/19 13:08:15 simonb Exp $ */
+/* $NetBSD: math.h,v 1.5 2014/10/22 10:32:50 joerg Exp $ */
#define __HAVE_NANF
+#define __HAVE_IBM_LONGDOUBLE /* Uses double-double as long double */
