tree-cfg.c (remove_bb): Only warn if line is non-zero.

gcc:
	* tree-cfg.c (remove_bb): Only warn if line is non-zero.
	* c-pch.c (c_common_read_pch): Restore current location after
	reading PCH file.
	* tree.c (expand_location): Update.
	(expr_filename): Changed return type.  Unified the two cases.
	(expr_lineno): Likewise.
	(annotate_with_file_line): Don't use EXPR_LINENO and EXPR_FILENAME
	as lvalues.
	* toplev.c (line_table): Changed type.
	(general_init): Update.
	(realloc_for_line_map): New function.
	(general_init): Allocate line_table using GC.
	* fix-header.c (line_table): Changed type.
	(read_scan_file): Update.
	(read_scan_file): Update.
	* c-ppoutput.c (maybe_print_line): Update.
	(print_line): Update.
	(cb_line_change): Update.
	(cb_define): Update.
	(pp_file_change): Update.
	* c-opts.c (c_common_init_options): Update.
	(finish_options): Update.
	(push_command_line_include): Update.
	* c-lex.c (cb_line_change): Update.
	(cb_def_pragma): Update.
	(cb_define): Update.
	(cb_undef): Update.
	(c_lex_with_flags): Use cpp_get_token_with_location.
	* input.h (line_table): Changed type.
	(location_from_locus): New macro.
	* tree.h (EXPR_FILENAME): No longer an lvalue.
	(EXPR_LINENO): Likewise.
	(expr_locus, set_expr_locus): Declare separately for
	USE_MAPPED_LOCATION.
	(expr_filename, expr_lineno): Changed return type.
	* gimplify.c (tree_to_gimple_tuple): Use SET_EXPR_LOCUS.
	* cfgexpand.c (expand_gimple_cond_expr): Use location_from_locus.
	(expand_gimple_basic_block): Likewise.
	* final.c (final_scan_insn): Use expanded_location.
gcc/cp:
	* decl.c (finish_function): Put return's location on line zero of
	file.
gcc/fortran:
	* scanner.c (get_file): Update.
	(load_file): Update.
	(gfc_next_char_literal): Use gfc_linebuf_linenum.
	* f95-lang.c (gfc_init): Update.
	* gfortran.h (gfc_linebuf_linenum): New macro.
gcc/java:
	* lang.c (java_post_options): Update.
	* jcf-parse.c (set_source_filename): Update.
	(give_name_to_class): Update.
	(jcf_parse): Update.
	(duplicate_class_warning): Update.
	(parse_class_file): Update.
	(java_parse_file): Update.
	* expr.c (expand_byte_code): Update.
gcc/testsuite:
	* lib/g++.exp (g++_target_compile): Use -fno-show-column.
gcc/treelang:
	* tree1.c (treelang_init): Update.
	(treelang_parse_file): Update.
	(treelang_parse_file): Update.
	(treelang_parse_file): Update.
	* lex.l: Update.
	(update_lineno_charno): Likewise.
libcpp:
	* internal.h (struct cpp_reader) <invocation_location>: New
	field.
	(struct cpp_reader) <set_invocation_location>: Likewise.
	* init.c (cpp_set_line_map): New function.
	* line-map.c (linemap_add): Use linemap's allocator.
	* include/line-map.h (GTY): Define.
	(line_map_realloc): New typedef.
	(struct line_map): Mark with GTY.
	(struct line_maps): Likewise.
	(struct line_maps) <maps>: Likewise.
	(struct line_maps) <reallocator>: New field.
	* include/symtab.h (GTY): Conditionally define.
	* include/cpplib.h (cpp_set_line_map): Declare.
	(cpp_get_token_with_location): Declare.
	* macro.c (cpp_get_token): Set invocation_location on the reader.
	(cpp_get_token_with_location): New function.

From-SVN: r128190

1 files changed, 12 insertions, 2 deletions

diff --git a/gcc/toplev.c b/gcc/toplev.c
index 31d8c5f..b8d1f9c 100644
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -146,7 +146,7 @@ location_t unknown_location = { NULL, 0 };
 
 location_t input_location;
 
-struct line_maps line_table;
+struct line_maps *line_table;
 
 /* Stack of currently pending input files.  */
 
@@ -1601,6 +1601,14 @@ default_tree_printer (pretty_printer * pp, text_info *text, const char *spec,
   return true;
 }
 
+/* A helper function; used as the reallocator function for cpp's line
+   table.  */
+static void *
+realloc_for_line_map (void *ptr, size_t len)
+{
+  return ggc_realloc (ptr, len);
+}
+
 /* Initialization of the front end environment, before command line
    options are parsed.  Signal handlers, internationalization etc.
    ARGV0 is main's argv[0].  */
@@ -1657,7 +1665,9 @@ general_init (const char *argv0)
      table.  */
   init_ggc ();
   init_stringpool ();
-  linemap_init (&line_table);
+  line_table = GGC_NEW (struct line_maps);
+  linemap_init (line_table);
+  line_table->reallocator = realloc_for_line_map;
   init_ttree ();
 
   /* Initialize register usage now so switches may override.  */