diff options
Diffstat (limited to 'gcc/tree-data-ref.c')
| -rw-r--r-- | gcc/tree-data-ref.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index 7554549..bf9516c 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -4180,18 +4180,20 @@ find_loop_nest (struct loop *loop, VEC (loop_p, heap) **loop_nest) return true; } -/* Given a loop nest LOOP, the following vectors are returned: +/* Returns true when the data dependences have been computed, false otherwise. + Given a loop nest LOOP, the following vectors are returned: DATAREFS is initialized to all the array elements contained in this loop, DEPENDENCE_RELATIONS contains the relations between the data references. Compute read-read and self relations if COMPUTE_SELF_AND_READ_READ_DEPENDENCES is TRUE. */ -void +bool compute_data_dependences_for_loop (struct loop *loop, bool compute_self_and_read_read_dependences, VEC (data_reference_p, heap) **datarefs, VEC (ddr_p, heap) **dependence_relations) { + bool res = true; VEC (loop_p, heap) *vloops = VEC_alloc (loop_p, heap, 3); memset (&dependence_stats, 0, sizeof (dependence_stats)); @@ -4209,6 +4211,7 @@ compute_data_dependences_for_loop (struct loop *loop, chrec_dont_know. */ ddr = initialize_data_dependence_relation (NULL, NULL, vloops); VEC_safe_push (ddr_p, heap, *dependence_relations, ddr); + res = false; } else compute_all_dependences (*datarefs, dependence_relations, vloops, @@ -4260,7 +4263,9 @@ compute_data_dependences_for_loop (struct loop *loop, dependence_stats.num_miv_independent); fprintf (dump_file, "Number of miv tests unimplemented: %d\n", dependence_stats.num_miv_unimplemented); - } + } + + return res; } /* Entry point (for testing only). Analyze all the data references @@ -5032,3 +5037,20 @@ remove_similar_memory_refs (VEC (tree, heap) **stmts) htab_delete (seen); } +/* Returns the index of PARAMETER in the parameters vector of the + ACCESS_MATRIX. If PARAMETER does not exist return -1. */ + +int +access_matrix_get_index_for_parameter (tree parameter, + struct access_matrix *access_matrix) +{ + int i; + VEC (tree,heap) *lambda_parameters = AM_PARAMETERS (access_matrix); + tree lambda_parameter; + + for (i = 0; VEC_iterate (tree, lambda_parameters, i, lambda_parameter); i++) + if (lambda_parameter == parameter) + return i + AM_NB_INDUCTION_VARS (access_matrix); + + return -1; +} |