Don't make -gsplit-dwarf imply -g

-gsplit-dwarf introduces order dependency: it overrides previous -g0 and -g1.

Don't imply -g so that it can be plugged into a build without worrying
that unnecessary debugging information may be generated.

2020-05-13  Fangrui Song  <maskray@google.com>

	PR debug/95096
	* opts.c (common_handle_option): Don't make -gsplit-dwarf imply -g.
	* doc/invoke.texi (-gsplit-dwarf): Update documentation.

1 files changed, 0 insertions, 5 deletions

diff --git a/gcc/opts.c b/gcc/opts.c
index 6628f7e..68321cc 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -2704,11 +2704,6 @@ common_handle_option (struct gcc_options *opts,
       set_debug_level (DWARF2_DEBUG, false, "", opts, opts_set, loc);
       break;
 
-    case OPT_gsplit_dwarf:
-      set_debug_level (NO_DEBUG, DEFAULT_GDB_EXTENSIONS, "", opts, opts_set,
-		       loc);
-      break;
-
     case OPT_ggdb:
       set_debug_level (NO_DEBUG, 2, arg, opts, opts_set, loc);
       break;