http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307
--- Comment #12 from dave.anglin at bell dot net 2013-03-13 01:50:05 UTC --- On 12-Mar-13, at 1:48 PM, jamborm at gcc dot gnu.org wrote: > I'm just guessing, but is it possible that MAY_HAVE_DEBUG_STMTS is 0 > > even with -g on hppa-hpux? Yes, your guess is correct. 1) In dbx_debug_hooks, var_location is debug_nothing_rtx. 2) This causes flag_var_tracking to be set to 0 at toplev.c:1412. 3) flag_selective_scheduling and flag_selective_scheduling2 are both 0, so flag_var_tracking_assignments is set to flag_var_tracking at toplev.c:1435. This only happens when flag_var_tracking_assignments initially has the AUTODETECT_VALUE. Explicitly passing the -fvar_tracking_assignments option overrides this. -- John David Anglin dave.ang...@bell.net
