Hi! During htab_delete (dropped_values), loc_exp_dep_pool allocated objects might be accessed, so it is better to free the pool afterwards.
Bootstrapped/regtested on i686-linux, ok for trunk? 2012-06-21 Jakub Jelinek <ja...@redhat.com> PR debug/53706 * var-tracking.c (vt_emit_notes): Free loc_exp_dep_pool only after htab_delete call. --- gcc/var-tracking.c.jj 2012-06-14 20:26:02.000000000 +0200 +++ gcc/var-tracking.c 2012-06-18 09:02:56.142742617 +0200 @@ -9127,9 +9127,9 @@ vt_emit_notes (void) if (MAY_HAVE_DEBUG_INSNS) { + htab_delete (dropped_values); free_alloc_pool (loc_exp_dep_pool); loc_exp_dep_pool = NULL; - htab_delete (dropped_values); } emit_notes = false; Jakub