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authorspop <spop@138bc75d-0d04-0410-961f-82ee72b054a4>2010-12-23 16:25:52 +0000
committerspop <spop@138bc75d-0d04-0410-961f-82ee72b054a4>2010-12-23 16:25:52 +0000
commita8af2e868d6e2eb08b40066e4fc888d8ca2424ab (patch)
tree560661198b65a199d12abbb757c1a4560e199292 /gcc/tree-parloops.c
parent12319e0aa5f1770ecf35d6064037d8da8e1a3460 (diff)
downloadgcc-a8af2e868d6e2eb08b40066e4fc888d8ca2424ab.tar.gz
Fix PR47002: memory leaks.
2010-12-23 Sebastian Pop <sebastian.pop@amd.com> PR tree-optimization/47002 * tree-data-ref.c (compute_data_dependences_for_loop): Pass in a pointer to the loop_nest. (analyze_all_data_dependences): Initialize and free the loop_nest. (free_dependence_relations): Do not free loop_nest. (build_rdg): Pass in the loop_nest, datarefs, and dependence_relations. (free_rdg): Also free the data on edges. * tree-data-ref.h (build_rdg): Update declaration. (compute_data_dependences_for_loop): Same. * tree-if-conv.c (if_convertible_loop_p_1): Pass in the loop_nest. (if_convertible_loop_p): Allocate and free loop_nest. * tree-loop-distribution.c (rdg_flag_loop_exits): Free conds. (free_rdg_components): VEC_free components. (distribute_loop): Update call to build_rdg. Allocate and free loop_nest, datarefs, and dependence_relations. * tree-loop-linear.c (linear_transform_loops): Allocate and free loop_nest. * tree-parloops.c (loop_parallel_p): Same. * tree-predcom.c (tree_predictive_commoning_loop): Same. * tree-vect-data-refs.c (vect_analyze_data_refs): Pass to compute_data_dependences_for_loop a pointer to LOOP_VINFO_LOOP_NEST. * tree-vect-loop.c (new_loop_vec_info): Initialize LOOP_VINFO_LOOP_NEST. (destroy_loop_vec_info): Free LOOP_VINFO_MAY_ALIAS_DDRS and LOOP_VINFO_LOOP_NEST. * tree-vect-slp.c (destroy_bb_vec_info): Call free_data_refs and free_dependence_relations. * tree-vectorizer.h (struct _loop_vec_info): Add a field loop_nest. (LOOP_VINFO_LOOP_NEST): New. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@168210 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-parloops.c')
-rw-r--r--gcc/tree-parloops.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/tree-parloops.c b/gcc/tree-parloops.c
index ea1911a81fa..aba70c8f082 100644
--- a/gcc/tree-parloops.c
+++ b/gcc/tree-parloops.c
@@ -252,7 +252,8 @@ name_to_copy_elt_hash (const void *aa)
static bool
loop_parallel_p (struct loop *loop, struct obstack * parloop_obstack)
{
- VEC (ddr_p, heap) * dependence_relations;
+ VEC (loop_p, heap) *loop_nest;
+ VEC (ddr_p, heap) *dependence_relations;
VEC (data_reference_p, heap) *datarefs;
lambda_trans_matrix trans;
bool ret = false;
@@ -270,7 +271,8 @@ loop_parallel_p (struct loop *loop, struct obstack * parloop_obstack)
the iterations are independent. */
datarefs = VEC_alloc (data_reference_p, heap, 10);
dependence_relations = VEC_alloc (ddr_p, heap, 10 * 10);
- compute_data_dependences_for_loop (loop, true, &datarefs,
+ loop_nest = VEC_alloc (loop_p, heap, 3);
+ compute_data_dependences_for_loop (loop, true, &loop_nest, &datarefs,
&dependence_relations);
if (dump_file && (dump_flags & TDF_DETAILS))
dump_data_dependence_relations (dump_file, dependence_relations);
@@ -288,6 +290,7 @@ loop_parallel_p (struct loop *loop, struct obstack * parloop_obstack)
fprintf (dump_file,
" FAILED: data dependencies exist across iterations\n");
+ VEC_free (loop_p, heap, loop_nest);
free_dependence_relations (dependence_relations);
free_data_refs (datarefs);