Fix http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57260 (patch from

gcc's repository). This bugs show up with Xorg, preventing  xf86-video-sis and
xf86-video-silicon modules from being loaded.

external/gpl3/gcc/dist/gcc/config/mips/mips.c

@@ -6522,6 +6522,15 @@ mips_function_ok_for_sibcall (tree decl, tree exp ATTRIBUTE_UNUSED)
       && const_call_insn_operand (XEXP (DECL_RTL (decl), 0), VOIDmode))
     return false;
 
+   /* Sibling calls should not prevent lazy binding.  Lazy-binding stubs
+      require $gp to be valid on entry, so sibcalls can only use stubs
+      if $gp is call-clobbered.  */
+   if (decl
+       && TARGET_CALL_SAVED_GP
+       && !TARGET_ABICALLS_PIC0
+       && !targetm.binds_local_p (decl))
+     return false;
+
   /* Otherwise OK.  */
   return true;
 }