Re: [PATCH] PR libgcc/83112, Fix warnings on libgcc float128-ifunc.c

[Michael Meissner <meissner@linux.vnet.ibm.com>]

After committing the previous patch, I noticed that it was now generating
warnings for __{mul,div}kc3_{sw,hw} not having a prototype that I hadn't
noticed during development of the patch.  This is due to the fact that before I
added the ifunc support, it was only compiling __{mul,div}kc3, and those have
built-in declarations.  I installed this patch as being obvious:

2017-11-30  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/_mulkc3.c (__mulkc3): Add forward declaration.
	* config/rs6000/_divkc3.c (__divkc3): Likewise.

Index: libgcc/config/rs6000/_divkc3.c
===================================================================
--- libgcc/config/rs6000/_divkc3.c	(revision 255288)
+++ libgcc/config/rs6000/_divkc3.c	(working copy)
@@ -37,6 +37,8 @@ typedef __complex float KCtype __attribu
 #define __divkc3 __divkc3_sw
 #endif
 
+extern KCtype __divkc3 (KFtype, KFtype, KFtype, KFtype);
+
 KCtype
 __divkc3 (KFtype a, KFtype b, KFtype c, KFtype d)
 {
Index: libgcc/config/rs6000/_mulkc3.c
===================================================================
--- libgcc/config/rs6000/_mulkc3.c	(revision 255288)
+++ libgcc/config/rs6000/_mulkc3.c	(working copy)
@@ -35,6 +35,8 @@ typedef __complex float KCtype __attribu
 #define __mulkc3 __mulkc3_sw
 #endif
 
+extern KCtype __mulkc3 (KFtype, KFtype, KFtype, KFtype);
+
 KCtype
 __mulkc3 (KFtype a, KFtype b, KFtype c, KFtype d)
 {

-- 
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meissner@linux.vnet.ibm.com, phone: +1 (978) 899-4797