dump CTORs properly wrapped with _Literal with -gimple

This wraps { ... } in _Literal (type) for consumption by the GIMPLE FE.

2020-01-30  Richard Biener  <rguenther@suse.de>

	* tree-pretty-print.c (dump_generic_node): Wrap VECTOR_CST
	and CONSTRUCTOR in _Literal (type) with TDF_GIMPLE.

gcc/ChangeLog

+2020-01-30  Richard Biener  <rguenther@suse.de>
+
+	* tree-pretty-print.c (dump_generic_node): Wrap VECTOR_CST
+	and CONSTRUCTOR in _Literal (type) with TDF_GIMPLE.
+
 2020-01-30  John David Anglin  <danglin@gcc.gnu.org>
 
 	* config/pa/pa.c (pa_elf_select_rtx_section): Place function pointers

gcc/tree-pretty-print.c

@@ -2078,6 +2078,12 @@ dump_generic_node (pretty_printer *pp, tree node, int spc, dump_flags_t flags,
     case VECTOR_CST:
       {
 	unsigned i;
+	if (flags & TDF_GIMPLE)
+	  {
+	    pp_string (pp, "_Literal (");
+	    dump_generic_node (pp, TREE_TYPE (node), spc, flags, false);
+	    pp_string (pp, ") ");
+	  }
 	pp_string (pp, "{ ");
 	unsigned HOST_WIDE_INT nunits;
 	if (!VECTOR_CST_NELTS (node).is_constant (&nunits))
@@ -2315,6 +2321,12 @@ dump_generic_node (pretty_printer *pp, tree node, int spc, dump_flags_t flags,
 	bool is_struct_init = false;
 	bool is_array_init = false;
 	widest_int curidx;
+	if (flags & TDF_GIMPLE)
+	  {
+	    pp_string (pp, "_Literal (");
+	    dump_generic_node (pp, TREE_TYPE (node), spc, flags, false);
+	    pp_string (pp, ") ");
+	  }
 	pp_left_brace (pp);
 	if (TREE_CLOBBER_P (node))
 	  pp_string (pp, "CLOBBER");