http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46037
--- Comment #20 from Jan Hubicka <hubicka at ucw dot cz> 2011-01-11 16:56:35 UTC --- > Why not retain the original code behavior unless generating lto? The patch Because the original code bahviour is wrong. It assumes that debug_hooks is initialized while it is not at the point. Honza > below works with both a standard and lto-bootstrap on x86_64-apple-darwin10. > > Index: gcc/config/darwin.c > =================================================================== > --- gcc/config/darwin.c (revision 168662) > +++ gcc/config/darwin.c (working copy) > @@ -2618,7 +2618,8 @@ > if (flag_var_tracking > && (generating_for_darwin_version >= 9) > && debug_info_level >= DINFO_LEVEL_NORMAL > - && debug_hooks->var_location != do_nothing_debug_hooks.var_location) > + && (flag_generate_lto ? (write_symbols == DWARF2_DEBUG) > + : (debug_hooks->var_location != do_nothing_debug_hooks.var_location))) > flag_var_tracking_uninit = 1; > > if (MACHO_DYNAMIC_NO_PIC_P)
