diff options
| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-01-28 13:13:54 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-01-28 13:13:54 +0000 |
| commit | 6bdbd138cb4f5671e57901367157934bedb70478 (patch) | |
| tree | 1e08f815e4ec60565713a06f94c1f2981f1c8d51 /gcc/var-tracking.c | |
| parent | 4060ba27ac29507a78ba8f4d3e17400afbfad4d3 (diff) | |
| download | gcc-6bdbd138cb4f5671e57901367157934bedb70478.tar.gz | |
2014-01-28 Richard Biener <rguenther@suse.de>
Revert
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@207182 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/var-tracking.c')
| -rw-r--r-- | gcc/var-tracking.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c index 512c08bb120..cfa785079f6 100644 --- a/gcc/var-tracking.c +++ b/gcc/var-tracking.c @@ -2481,8 +2481,7 @@ static bool local_get_addr_clear_given_value (const void *v ATTRIBUTE_UNUSED, void **slot, void *x) { - if (*slot != NULL - && vt_get_canonicalize_base ((rtx)*slot) == x) + if (vt_get_canonicalize_base ((rtx)*slot) == x) *slot = NULL; return true; } @@ -2502,8 +2501,7 @@ val_reset (dataflow_set *set, decl_or_value dv) gcc_assert (var->n_var_parts == 1); - if (var->onepart == ONEPART_VALUE - && local_get_addr_cache != NULL) + if (var->onepart == ONEPART_VALUE) { rtx x = dv_as_value (dv); void **slot; @@ -6936,12 +6934,12 @@ vt_find_locations (void) bool success = true; timevar_push (TV_VAR_TRACKING_DATAFLOW); - /* Compute reverse top sord order of the inverted CFG + /* Compute reverse completion order of depth first search of the CFG so that the data-flow runs faster. */ - rc_order = XNEWVEC (int, n_basic_blocks_for_fn (cfun)); + rc_order = XNEWVEC (int, n_basic_blocks_for_fn (cfun) - NUM_FIXED_BLOCKS); bb_order = XNEWVEC (int, last_basic_block_for_fn (cfun)); - int num = inverted_post_order_compute (rc_order); - for (i = 0; i < num; i++) + pre_and_rev_post_order_compute (NULL, rc_order, false); + for (i = 0; i < n_basic_blocks_for_fn (cfun) - NUM_FIXED_BLOCKS; i++) bb_order[rc_order[i]] = i; free (rc_order); |