gigi.h (end_subprog_body): Tweak comment.

	* gcc-interface/gigi.h (end_subprog_body): Tweak comment.
	* gcc-interface/utils.c (end_subprog_body): Likewise.
	* gcc-interface/trans.c (gigi): Likewise.
	(gnat_to_gnu): Likewise.

From-SVN: r150352

4 files changed, 16 insertions, 19 deletions

diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 35aa542..aed7ce6 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,10 @@
+2009-08-02  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/gigi.h (end_subprog_body): Tweak comment.
+	* gcc-interface/utils.c (end_subprog_body): Likewise.
+	* gcc-interface/trans.c (gigi): Likewise.
+	(gnat_to_gnu): Likewise.
+
 2009-07-30  Ben Brosgol  <brosgol@adacore.com>
 
 	* gnat_ugn.texi: Correct minor texi glitch.
diff --git a/gcc/ada/gcc-interface/gigi.h b/gcc/ada/gcc-interface/gigi.h
index 05a4686..a6171b2 100644
--- a/gcc/ada/gcc-interface/gigi.h
+++ b/gcc/ada/gcc-interface/gigi.h
@@ -677,8 +677,7 @@ extern tree create_label_decl (tree label_name);
    appearing in the subprogram.  */
 extern void begin_subprog_body (tree subprog_decl);
 
-/* Finish the definition of the current subprogram BODY and compile it all the
-   way to assembler language output.  */
+/* Finish the definition of the current subprogram BODY and finalize it.  */
 extern void end_subprog_body (tree body);
 
 /* Build a template of type TEMPLATE_TYPE from the array bounds of ARRAY_TYPE.
diff --git a/gcc/ada/gcc-interface/trans.c b/gcc/ada/gcc-interface/trans.c
index 0dcc593..84053a4 100644
--- a/gcc/ada/gcc-interface/trans.c
+++ b/gcc/ada/gcc-interface/trans.c
@@ -626,8 +626,7 @@ gigi (Node_Id gnat_root, int max_gnat_node, int number_name,
   /* Finally see if we have any elaboration procedures to deal with.  */
   for (info = elab_info_list; info; info = info->next)
     {
-      tree gnu_body = DECL_SAVED_TREE (info->elab_proc);
-      tree gnu_stmts;
+      tree gnu_body = DECL_SAVED_TREE (info->elab_proc), gnu_stmts;
 
       /* Unshare SAVE_EXPRs between subprograms.  These are not unshared by
 	 the gimplifier for obvious reasons, but it turns out that we need to
@@ -639,21 +638,16 @@ gigi (Node_Id gnat_root, int max_gnat_node, int number_name,
 	 an upstream bug for which we would not change the outcome.  */
       walk_tree_without_duplicates (&gnu_body, unshare_save_expr, NULL);
 
-
-      /* We should have a BIND_EXPR, but it may or may not have any statements
-	 in it.  If it doesn't have any, we have nothing to do.  */
+      /* We should have a BIND_EXPR but it may not have any statements in it.
+	 If it doesn't have any, we have nothing to do except for setting the
+	 flag on the GNAT node.  Otherwise, process the function as others.  */
       gnu_stmts = gnu_body;
       if (TREE_CODE (gnu_stmts) == BIND_EXPR)
 	gnu_stmts = BIND_EXPR_BODY (gnu_stmts);
-
-      /* If there are no statements, there is no elaboration code.  */
       if (!gnu_stmts || !STATEMENT_LIST_HEAD (gnu_stmts))
-	{
-	  Set_Has_No_Elaboration_Code (info->gnat_node, 1);
-	}
+	Set_Has_No_Elaboration_Code (info->gnat_node, 1);
       else
 	{
-	  /* Process the function as others.  */
 	  begin_subprog_body (info->elab_proc);
 	  end_subprog_body (gnu_body);
 	}
@@ -5294,12 +5288,11 @@ gnat_to_gnu (Node_Id gnat_node)
       gnu_result = alloc_stmt_list ();
       break;
 
-    /* SCIL nodes require no processing by this backend */
-
     case N_SCIL_Dispatch_Table_Object_Init:
     case N_SCIL_Dispatch_Table_Tag_Init:
     case N_SCIL_Dispatching_Call:
     case N_SCIL_Tag_Init:
+      /* SCIL nodes require no processing for GCC.  */
       gnu_result = alloc_stmt_list ();
       break;
 
diff --git a/gcc/ada/gcc-interface/utils.c b/gcc/ada/gcc-interface/utils.c
index 1548f6d..e61a0fa 100644
--- a/gcc/ada/gcc-interface/utils.c
+++ b/gcc/ada/gcc-interface/utils.c
@@ -2069,8 +2069,7 @@ gnat_genericize (tree fndecl)
   pointer_set_destroy (p_set);
 }
 
-/* Finish the definition of the current subprogram BODY and compile it all the
-   way to assembler language output.  */
+/* Finish the definition of the current subprogram BODY and finalize it.  */
 
 void
 end_subprog_body (tree body)
@@ -2109,8 +2108,7 @@ end_subprog_body (tree body)
   /* Dump functions before gimplification.  */
   dump_function (TDI_original, fndecl);
 
-  /* We do different things for nested and non-nested functions.
-     ??? This should be in cgraph.  */
+  /* ??? This special handling of nested functions is probably obsolete.  */
   if (!DECL_CONTEXT (fndecl))
     cgraph_finalize_function (fndecl, false);
   else