rtl-optimization/99054 - fix leak in fixup_partitions

This fixes a leak of the vector retured by find_partition_fixes
by turning it into an auto_vec.

2021-02-10  Richard Biener  <rguenther@suse.de>

	PR rtl-optimization/99054
	* cfgrtl.c (rtl-optimization/99054): Return an auto_vec.
	(fixup_partitions): Adjust.
	(rtl_verify_edges): Likewise.
This commit is contained in:
Richard Biener 2021-02-10 10:17:15 +01:00
parent bd0e37f68a
commit 7293251105

View File

@ -2381,11 +2381,11 @@ find_bbs_reachable_by_hot_paths (hash_set<basic_block> *set)
cfg optimizations that may make hot blocks previously reached
by both hot and cold blocks now only reachable along cold paths. */
static vec<basic_block>
static auto_vec<basic_block>
find_partition_fixes (bool flag_only)
{
basic_block bb;
vec<basic_block> bbs_to_fix = vNULL;
auto_vec<basic_block> bbs_to_fix;
hash_set<basic_block> set;
/* Callers check this. */
@ -2431,7 +2431,7 @@ fixup_partitions (void)
  a cold partition cannot dominate a basic block in a hot partition.
Fixup any that now violate this requirement, as a result of edge
forwarding and unreachable block deletion.  */
vec<basic_block> bbs_to_fix = find_partition_fixes (false);
auto_vec<basic_block> bbs_to_fix = find_partition_fixes (false);
/* Do the partition fixup after all necessary blocks have been converted to
cold, so that we only update the region crossings the minimum number of
@ -2682,7 +2682,7 @@ rtl_verify_edges (void)
if (crtl->has_bb_partition && !err
&& current_ir_type () == IR_RTL_CFGLAYOUT)
{
vec<basic_block> bbs_to_fix = find_partition_fixes (true);
auto_vec<basic_block> bbs_to_fix = find_partition_fixes (true);
err = !bbs_to_fix.is_empty ();
}