This avoids .debug_types for the late debug where we shouldn't emit
any type DIEs anyway. This follows the recent change for pubnames.
Bootstrap & regtest running on x86_64-unknown-linux-gnu.
2019-02-27 Richard Biener <rguent...@suse.de>
PR debug/88878
* dwarf2out.c (use_debug_types): Disable when in_lto_p.
Index: gcc/dwarf2out.c
===================================================================
--- gcc/dwarf2out.c (revision 269250)
+++ gcc/dwarf2out.c (working copy)
@@ -2914,9 +2914,13 @@ const struct gcc_debug_hooks dwarf2_line
separate comdat sections since the linker will then be able to
remove duplicates. But not all tools support .debug_types sections
yet. For Dwarf V5 or higher .debug_types doesn't exist any more,
- it is DW_UT_type unit type in .debug_info section. */
-
-#define use_debug_types (dwarf_version >= 4 && flag_debug_types_section)
+ it is DW_UT_type unit type in .debug_info section. For late LTO
+ debug there should be almost no types emitted so avoid enabling
+ -fdebug-types-section there. */
+
+#define use_debug_types (dwarf_version >= 4 \
+ && flag_debug_types_section \
+ && !in_lto_p)
/* Various DIE's use offsets relative to the beginning of the
.debug_info section to refer to each other. */
