+2011-01-21 Alexandre Oliva <aoliva@redhat.com>
+
+ PR debug/47106
+ * cfgexpand.c (account_used_vars_for_block): Only account vars
+ that are annotated as used.
+ (estimated_stack_frame_size): Don't set TREE_USED.
+ * tree-dfa.c (create_var_ann): Mark variable as used.
+
2011-01-21 Richard Guenther <rguenther@suse.de>
PR middle-end/47395
/* Expand all variables at this level. */
for (t = BLOCK_VARS (block); t ; t = DECL_CHAIN (t))
- if (TREE_USED (t))
+ if (var_ann (t) && var_ann (t)->used)
size += expand_one_var (t, toplevel, false);
/* Expand all variables at containing levels. */
FOR_EACH_LOCAL_DECL (cfun, ix, var)
{
+ /* TREE_USED marks local variables that do not appear in lexical
+ blocks. We don't want to expand those that do twice. */
if (TREE_USED (var))
size += expand_one_var (var, true, false);
- TREE_USED (var) = 1;
}
size += account_used_vars_for_block (outer_block, true);
ann = ggc_alloc_cleared_var_ann_d ();
*DECL_VAR_ANN_PTR (t) = ann;
+ /* Assume the variable is used, at least for now. */
+ ann->used = true;
+
return ann;
}