diff options
Diffstat (limited to 'gcc/tree-data-ref.c')
| -rw-r--r-- | gcc/tree-data-ref.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index f7c7ae5e45a..e57489e11d6 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -844,20 +844,35 @@ dr_analyze_indices (struct data_reference *dr, loop_p nest, loop_p loop) if (nest) before_loop = block_before_loop (nest); + /* Analyze access functions of dimensions we know to be independent. */ while (handled_component_p (aref)) { + /* For ARRAY_REFs the base is the reference with the index replaced + by zero. */ if (TREE_CODE (aref) == ARRAY_REF) { op = TREE_OPERAND (aref, 1); if (nest) { - access_fn = analyze_scalar_evolution (loop, op); + access_fn = analyze_scalar_evolution (loop, op); access_fn = instantiate_scev (before_loop, loop, access_fn); VEC_safe_push (tree, heap, access_fns, access_fn); } - TREE_OPERAND (aref, 1) = build_int_cst (TREE_TYPE (op), 0); } + /* REALPART_EXPR and IMAGPART_EXPR can be handled like accesses + into a two element array with a constant index. The base is + then just the immediate underlying object. */ + else if (TREE_CODE (aref) == REALPART_EXPR) + { + ref = TREE_OPERAND (ref, 0); + VEC_safe_push (tree, heap, access_fns, integer_zero_node); + } + else if (TREE_CODE (aref) == IMAGPART_EXPR) + { + ref = TREE_OPERAND (ref, 0); + VEC_safe_push (tree, heap, access_fns, integer_one_node); + } aref = TREE_OPERAND (aref, 0); } @@ -956,6 +971,7 @@ create_data_ref (loop_p nest, loop_p loop, tree memref, gimple stmt, if (dump_file && (dump_flags & TDF_DETAILS)) { + unsigned i; fprintf (dump_file, "\tbase_address: "); print_generic_expr (dump_file, DR_BASE_ADDRESS (dr), TDF_SLIM); fprintf (dump_file, "\n\toffset from base address: "); @@ -969,6 +985,11 @@ create_data_ref (loop_p nest, loop_p loop, tree memref, gimple stmt, fprintf (dump_file, "\n\tbase_object: "); print_generic_expr (dump_file, DR_BASE_OBJECT (dr), TDF_SLIM); fprintf (dump_file, "\n"); + for (i = 0; i < DR_NUM_DIMENSIONS (dr); i++) + { + fprintf (dump_file, "\tAccess function %d: ", i); + print_generic_stmt (dump_file, DR_ACCESS_FN (dr, i), TDF_SLIM); + } } return dr; |