diff options
Diffstat (limited to 'gcc/tree-vect-data-refs.c')
| -rw-r--r-- | gcc/tree-vect-data-refs.c | 56 |
1 files changed, 2 insertions, 54 deletions
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c index bb0b693..5d07cae 100644 --- a/gcc/tree-vect-data-refs.c +++ b/gcc/tree-vect-data-refs.c @@ -2816,56 +2816,6 @@ vect_check_gather (gimple stmt, loop_vec_info loop_vinfo, tree *basep, return decl; } -/* Check wether a non-affine load in STMT (being in the loop referred to - in LOOP_VINFO) is suitable for handling as strided load. That is the case - if its address is a simple induction variable. If so return the base - of that induction variable in *BASEP and the (loop-invariant) step - in *STEPP, both only when that pointer is non-zero. - - This handles ARRAY_REFs (with variant index) and MEM_REFs (with variant - base pointer) only. */ - -static bool -vect_check_strided_load (gimple stmt, loop_vec_info loop_vinfo) -{ - struct loop *loop = LOOP_VINFO_LOOP (loop_vinfo); - stmt_vec_info stmt_info = vinfo_for_stmt (stmt); - struct data_reference *dr = STMT_VINFO_DATA_REF (stmt_info); - tree base, off; - affine_iv iv; - - if (!DR_IS_READ (dr)) - return false; - - base = DR_REF (dr); - - if (TREE_CODE (base) == REALPART_EXPR - || TREE_CODE (base) == IMAGPART_EXPR) - base = TREE_OPERAND (base, 0); - - if (TREE_CODE (base) == ARRAY_REF) - { - off = TREE_OPERAND (base, 1); - base = TREE_OPERAND (base, 0); - } - else if (TREE_CODE (base) == MEM_REF) - { - off = TREE_OPERAND (base, 0); - base = TREE_OPERAND (base, 1); - } - else - return false; - - if (TREE_CODE (off) != SSA_NAME) - return false; - - if (!expr_invariant_in_loop_p (loop, base) - || !simple_iv (loop, loop_containing_stmt (stmt), off, &iv, true)) - return false; - - return true; -} - /* Function vect_analyze_data_refs. Find all the data references in the loop or basic block. @@ -3291,10 +3241,8 @@ vect_analyze_data_refs (loop_vec_info loop_vinfo, else if (loop_vinfo && TREE_CODE (DR_STEP (dr)) != INTEGER_CST) { - bool strided_load = false; - if (!nested_in_vect_loop_p (loop, stmt)) - strided_load = vect_check_strided_load (stmt, loop_vinfo); - if (!strided_load) + if (nested_in_vect_loop_p (loop, stmt) + || !DR_IS_READ (dr)) { if (dump_enabled_p ()) { |