[Bug target/88877] rs6000 emits signed extension for unsigned int type(__floatunsidf).

[kamleshbhalui at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88877

--- Comment #1 from Kamlesh Kumar <kamleshbhalui at gmail dot com> ---
Following patch fixes the problem but would like to know the experts thought on
the below patch .

 static machine_mode
-rs6000_promote_function_mode (const_tree type ATTRIBUTE_UNUSED,
+rs6000_promote_function_mode (const_tree type ,
                              machine_mode mode,
-                             int *punsignedp ATTRIBUTE_UNUSED,
+                             int *punsignedp ,
                              const_tree, int)
 {
+  if(type)
   PROMOTE_MODE (mode, *punsignedp, type);
-
   return mode;
 }

Here, argument 'type' being null signifies that it's a libcalls.
So we will not promote the mode in this case,is that ok  ?