This if branch checks for comdat_type_p (GTY union tag) and then uses
incorrect union variant die_id.die_symbol. There is no way to create
this combination of valid values even if we ignore the GTY.
Running testsuite with abort() in branch confirms that it is never taken.
gcc/ChangeLog:
* dwarf2out.cc (output_comp_unit): Delete dead code.
---
gcc/dwarf2out.cc | 25 +++++--------------------
1 file changed, 5 insertions(+), 20 deletions(-)
diff --git a/gcc/dwarf2out.cc b/gcc/dwarf2out.cc
index 38aedb64470..e10a5c78fe9 100644
--- a/gcc/dwarf2out.cc
+++ b/gcc/dwarf2out.cc
@@ -11234,8 +11234,7 @@ static void
output_comp_unit (dw_die_ref die, int output_if_empty,
const unsigned char *dwo_id)
{
- const char *secname, *oldsym;
- char *tmp;
+ const char *oldsym;
/* Unless we are outputting main CU, we may throw away empty ones. */
if (!output_if_empty && die->die_child == NULL)
@@ -11269,21 +11268,10 @@ output_comp_unit (dw_die_ref die, int output_if_empty,
calc_die_sizes (die);
oldsym = die->die_id.die_symbol;
- if (oldsym && die->comdat_type_p)
- {
- tmp = XALLOCAVEC (char, strlen (oldsym) + 24);
- sprintf (tmp, ".gnu.linkonce.wi.%s", oldsym);
- secname = tmp;
- die->die_id.die_symbol = NULL;
- switch_to_section (get_section (secname, SECTION_DEBUG, NULL));
- }
- else
- {
- switch_to_section (debug_info_section);
- ASM_OUTPUT_LABEL (asm_out_file, debug_info_section_label);
- info_section_emitted = true;
- }
+ switch_to_section (debug_info_section);
+ ASM_OUTPUT_LABEL (asm_out_file, debug_info_section_label);
+ info_section_emitted = true;
/* For LTO cross unit DIE refs we want a symbol on the start of the
debuginfo section, not on the CU DIE. */
@@ -11322,10 +11310,7 @@ output_comp_unit (dw_die_ref die, int output_if_empty,
/* Leave the marks on the main CU, so we can check them in
output_pubnames. */
if (oldsym)
- {
- unmark_dies (die);
- die->die_id.die_symbol = oldsym;
- }
+ unmark_dies (die);
}
/* Whether to generate the DWARF accelerator tables in .debug_pubnames
--
2.47.0
