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tree-if-conv.c (if_convertible_loop_p_1): Do not compute dependences.

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2015-12-10  Richard Biener  <rguenther@suse.de>

	* tree-if-conv.c (if_convertible_loop_p_1): Do not compute
	dependences.
	(if_convertible_loop_p): Adjust.

From-SVN: r231492
This commit is contained in:
Richard Biener 2015-12-10 09:00:07 +00:00 • committed by Richard Biener
parent 08628df3c0
commit a839a8f708
2 changed files with 9 additions and 13 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2015-12-10 Richard Biener <rguenther@suse.de>
* tree-if-conv.c (if_convertible_loop_p_1): Do not compute
dependences.
(if_convertible_loop_p): Adjust.
2015-12-10 Tom de Vries <tom@codesourcery.com>
* tree-ssa-structalias.c (find_func_aliases_for_builtin_call): Remove

16
gcc/tree-if-conv.c
View file

@ -1173,18 +1173,13 @@ predicate_bbs (loop_p loop)
static bool
if_convertible_loop_p_1 (struct loop *loop,
vec<loop_p> *loop_nest,
vec<data_reference_p> *refs,
vec<ddr_p> *ddrs, bool *any_mask_load_store)
bool *any_mask_load_store)
{
bool res;
unsigned int i;
basic_block exit_bb = NULL;
/* Don't if-convert the loop when the data dependences cannot be
computed: the loop won't be vectorized in that case. */
res = compute_data_dependences_for_loop (loop, true, loop_nest, refs, ddrs);
if (!res)
if (find_data_references_in_loop (loop, refs) == chrec_dont_know)
return false;
calculate_dominance_info (CDI_DOMINATORS);
@ -1301,7 +1296,6 @@ if_convertible_loop_p (struct loop *loop, bool *any_mask_load_store)
edge_iterator ei;
bool res = false;
vec<data_reference_p> refs;
vec<ddr_p> ddrs;
/* Handle only innermost loop. */
if (!loop || loop->inner)
@ -1334,10 +1328,7 @@ if_convertible_loop_p (struct loop *loop, bool *any_mask_load_store)
return false;
refs.create (5);
ddrs.create (25);
auto_vec<loop_p, 3> loop_nest;
res = if_convertible_loop_p_1 (loop, &loop_nest, &refs, &ddrs,
any_mask_load_store);
res = if_convertible_loop_p_1 (loop, &refs, any_mask_load_store);
data_reference_p dr;
unsigned int i;
@ -1345,7 +1336,6 @@ if_convertible_loop_p (struct loop *loop, bool *any_mask_load_store)
free (dr->aux);
free_data_refs (refs);
free_dependence_relations (ddrs);
delete ref_DR_map;
ref_DR_map = NULL;