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| author | Andrew MacLeod <amacleod@redhat.com> | 2022-09-20 19:05:03 -0400 |
|---|---|---|
| committer | Andrew MacLeod <amacleod@redhat.com> | 2022-09-22 14:48:29 -0400 |
| commit | c750e675cb77f283ff991682db7740bc5f6d4cf4 (patch) | |
| tree | 25d10307ecd5d59e20e94168a5ca8b2bb601d71b /gcc/gimple-range-fold.cc | |
| parent | b6f670ff706e35dc51a62db4206cb241dcac4963 (diff) | |
| download | gcc-c750e675cb77f283ff991682db7740bc5f6d4cf4.zip gcc-c750e675cb77f283ff991682db7740bc5f6d4cf4.tar.gz gcc-c750e675cb77f283ff991682db7740bc5f6d4cf4.tar.bz2 | |
Convert CFN_BUILT_IN_STRLEN to range-ops.
* gimple-range-fold.cc (range_of_builtin_int_call): Remove case
for CFN_BUILT_IN_STRLEN.
* gimple-range-op.cc (class cfn_strlen): New.
(gimple_range_op_handler::maybe_builtin_call): Set arguments.
Diffstat (limited to 'gcc/gimple-range-fold.cc')
| -rw-r--r-- | gcc/gimple-range-fold.cc | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/gcc/gimple-range-fold.cc b/gcc/gimple-range-fold.cc index d445270..d22fb0e 100644 --- a/gcc/gimple-range-fold.cc +++ b/gcc/gimple-range-fold.cc @@ -908,27 +908,6 @@ fold_using_range::range_of_builtin_int_call (irange &r, gcall *call, return true; } - case CFN_BUILT_IN_STRLEN: - if (tree lhs = gimple_call_lhs (call)) - if (ptrdiff_type_node - && (TYPE_PRECISION (ptrdiff_type_node) - == TYPE_PRECISION (TREE_TYPE (lhs)))) - { - tree type = TREE_TYPE (lhs); - tree max = vrp_val_max (ptrdiff_type_node); - wide_int wmax - = wi::to_wide (max, TYPE_PRECISION (TREE_TYPE (max))); - tree range_min = build_zero_cst (type); - // To account for the terminating NULL, the maximum length - // is one less than the maximum array size, which in turn - // is one less than PTRDIFF_MAX (or SIZE_MAX where it's - // smaller than the former type). - // FIXME: Use max_object_size() - 1 here. - tree range_max = wide_int_to_tree (type, wmax - 2); - r.set (range_min, range_max); - return true; - } - break; default: break; } |