diff options
Diffstat (limited to 'gcc/tree-data-ref.h')
| -rw-r--r-- | gcc/tree-data-ref.h | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/gcc/tree-data-ref.h b/gcc/tree-data-ref.h index 2edddc03d44..853dd813411 100644 --- a/gcc/tree-data-ref.h +++ b/gcc/tree-data-ref.h @@ -609,21 +609,29 @@ index_in_loop_nest (int var, VEC (loop_p, heap) *loop_nest) return var_index; } -void stores_from_loop (struct loop *, VEC (gimple, heap) **); -void stores_zero_from_loop (struct loop *, VEC (gimple, heap) **); bool rdg_defs_used_in_other_loops_p (struct graph *, int); -bool stmt_with_adjacent_zero_store_dr_p (gimple); -/* Returns true when STRIDE is equal in absolute value to the size of - the unit type of TYPE. */ +/* Returns true when the data reference DR the form "A[i] = ..." + with a stride equal to its unit type size. */ static inline bool -stride_of_unit_type_p (tree stride, tree type) +adjacent_store_dr_p (struct data_reference *dr) { - return (TREE_CODE (stride) == INTEGER_CST - && tree_int_cst_equal (fold_unary (ABS_EXPR, TREE_TYPE (stride), - stride), - TYPE_SIZE_UNIT (type))); + if (!DR_IS_WRITE (dr)) + return false; + + /* If this is a bitfield store bail out. */ + if (TREE_CODE (DR_REF (dr)) == COMPONENT_REF + && DECL_BIT_FIELD (TREE_OPERAND (DR_REF (dr), 1))) + return false; + + if (!DR_STEP (dr) + || TREE_CODE (DR_STEP (dr)) != INTEGER_CST) + return false; + + return tree_int_cst_equal (fold_unary (ABS_EXPR, TREE_TYPE (DR_STEP (dr)), + DR_STEP (dr)), + TYPE_SIZE_UNIT (TREE_TYPE (DR_REF (dr)))); } /* In tree-data-ref.c */ |