diff options
Diffstat (limited to 'gcc/tree-ssa-loop-ivopts.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ivopts.c | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c index 10c9352..527c911 100644 --- a/gcc/tree-ssa-loop-ivopts.c +++ b/gcc/tree-ssa-loop-ivopts.c @@ -2405,28 +2405,26 @@ add_candidate (struct ivopts_data *data, add_autoinc_candidates (data, base, step, important, use); } -/* Add a standard "0 + 1 * iteration" iv candidate for a - type with SIZE bits. */ - -static void -add_standard_iv_candidates_for_size (struct ivopts_data *data, - unsigned int size) -{ - tree type = lang_hooks.types.type_for_size (size, true); - add_candidate (data, build_int_cst (type, 0), build_int_cst (type, 1), - true, NULL); -} - /* Adds standard iv candidates. */ static void add_standard_iv_candidates (struct ivopts_data *data) { - add_standard_iv_candidates_for_size (data, INT_TYPE_SIZE); + add_candidate (data, integer_zero_node, integer_one_node, true, NULL); + + /* The same for a double-integer type if it is still fast enough. */ + if (TYPE_PRECISION + (long_integer_type_node) > TYPE_PRECISION (integer_type_node) + && TYPE_PRECISION (long_integer_type_node) <= BITS_PER_WORD) + add_candidate (data, build_int_cst (long_integer_type_node, 0), + build_int_cst (long_integer_type_node, 1), true, NULL); /* The same for a double-integer type if it is still fast enough. */ - if (BITS_PER_WORD >= INT_TYPE_SIZE * 2) - add_standard_iv_candidates_for_size (data, INT_TYPE_SIZE * 2); + if (TYPE_PRECISION + (long_long_integer_type_node) > TYPE_PRECISION (long_integer_type_node) + && TYPE_PRECISION (long_long_integer_type_node) <= BITS_PER_WORD) + add_candidate (data, build_int_cst (long_long_integer_type_node, 0), + build_int_cst (long_long_integer_type_node, 1), true, NULL); } |