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| author | Bin Cheng <bin.cheng@arm.com> | 2017-05-31 09:01:36 +0000 |
|---|---|---|
| committer | Bin Cheng <amker@gcc.gnu.org> | 2017-05-31 09:01:36 +0000 |
| commit | c7d7e2227f72d54ce3ec725693a0fac35455c555 (patch) | |
| tree | 656b1cc5f244dff861422578f27cc9ae59bb46b7 /gcc/tree-data-ref.c | |
| parent | 945bafd67aae4e16b8ca0c44db2cf22606551f16 (diff) | |
| download | gcc-c7d7e2227f72d54ce3ec725693a0fac35455c555.zip gcc-c7d7e2227f72d54ce3ec725693a0fac35455c555.tar.gz gcc-c7d7e2227f72d54ce3ec725693a0fac35455c555.tar.bz2 | |
tree-data-ref.c (prune_runtime_alias_test_list): Relax minimal segment length for dr_b and compute it in wide_int.
* tree-data-ref.c (prune_runtime_alias_test_list): Relax minimal
segment length for dr_b and compute it in wide_int.
gcc/testsuite
* gcc.dg/vect/pr80815-3.c: New test.
From-SVN: r248725
Diffstat (limited to 'gcc/tree-data-ref.c')
| -rw-r--r-- | gcc/tree-data-ref.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index cfff7c2..c4275e2 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -1361,14 +1361,10 @@ prune_runtime_alias_test_list (vec<dr_with_seg_len_pair_t> *alias_pairs, wide_int min_seg_len_b; tree new_seg_len; - if (tree_fits_uhwi_p (dr_b1->seg_len)) - { - min_seg_len_b = dr_b1->seg_len; - if (tree_int_cst_sign_bit (dr_b1->seg_len)) - min_seg_len_b = wi::neg (min_seg_len_b); - } + if (TREE_CODE (dr_b1->seg_len) == INTEGER_CST) + min_seg_len_b = wi::abs (dr_b1->seg_len); else - min_seg_len_b = wi::uhwi (factor, TYPE_PRECISION (sizetype)); + min_seg_len_b = wi::mul (factor, wi::abs (DR_STEP (dr_b1->dr))); /* Now we try to merge alias check dr_a1 & dr_b and dr_a2 & dr_b. |