+2014-01-28 Richard Biener <rguenther@suse.de>
+
+ PR rtl-optimization/45364
+ PR rtl-optimization/59890
+ * var-tracking.c (local_get_addr_clear_given_value): Handle
+ already cleared slot.
+ (val_reset): Handle not allocated local_get_addr_cache.
+ (vt_find_locations): Use post-order on the inverted CFG.
+
2014-01-28 Alan Modra <amodra@gmail.com>
* Makefile.in (BUILD_CPPFLAGS): Do not use ALL_CPPFLAGS.
local_get_addr_clear_given_value (const void *v ATTRIBUTE_UNUSED,
void **slot, void *x)
{
- if (vt_get_canonicalize_base ((rtx)*slot) == x)
+ if (*slot != NULL
+ && vt_get_canonicalize_base ((rtx)*slot) == x)
*slot = NULL;
return true;
}
gcc_assert (var->n_var_parts == 1);
- if (var->onepart == ONEPART_VALUE)
+ if (var->onepart == ONEPART_VALUE
+ && local_get_addr_cache != NULL)
{
rtx x = dv_as_value (dv);
void **slot;
bool success = true;
timevar_push (TV_VAR_TRACKING_DATAFLOW);
- /* Compute reverse completion order of depth first search of the CFG
+ /* Compute reverse top sord order of the inverted CFG
so that the data-flow runs faster. */
- rc_order = XNEWVEC (int, n_basic_blocks_for_fn (cfun) - NUM_FIXED_BLOCKS);
+ rc_order = XNEWVEC (int, n_basic_blocks_for_fn (cfun));
bb_order = XNEWVEC (int, last_basic_block_for_fn (cfun));
- pre_and_rev_post_order_compute (NULL, rc_order, false);
- for (i = 0; i < n_basic_blocks_for_fn (cfun) - NUM_FIXED_BLOCKS; i++)
+ int num = inverted_post_order_compute (rc_order);
+ for (i = 0; i < num; i++)
bb_order[rc_order[i]] = i;
free (rc_order);