[PATCH] Make get_or_create_ssa_default_def consistently use the fn parameter

[Martin Jambor]

Hi,

today I have noticed that get_or_create_ssa_default_def passes its
struct function parameter to ssa_default_def but then happily uses a
cfun-only make_ssa_name and even explicitely passes cfun to
set_ssa_default_def.  Fixed with the patch below.

Bootstrapped and tested on x86_64-linux.  Given that all current
callers pass cfun as the first parameter I believe this is so low risk
that I'd like to commit it to trunk even though it does not really
cause any regression.  However, I'm also fine with waiting for stage1.
What do you think?

Thanks,

Martin


2013-03-04  Martin Jambor  <mjambor@suse.cz>

	* tree-dfa.c (get_or_create_ssa_default_def): Use parameter fn in
	all appropriate places.

Index: src/gcc/tree-dfa.c
===================================================================
--- src.orig/gcc/tree-dfa.c
+++ src/gcc/tree-dfa.c
@@ -362,8 +362,8 @@ get_or_create_ssa_default_def (struct fu
   tree ddef = ssa_default_def (fn, var);
   if (ddef == NULL_TREE)
     {
-      ddef = make_ssa_name (var, gimple_build_nop ());
-      set_ssa_default_def (cfun, var, ddef);
+      ddef = make_ssa_name_fn (fn, var, gimple_build_nop ());
+      set_ssa_default_def (fn, var, ddef);
     }
   return ddef;
 }