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| author | Jakub Jelinek <jakub@redhat.com> | 2023-06-07 19:18:26 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2023-06-07 19:18:26 +0200 |
| commit | e2ebd22acac844ba74e69a34dbf064d41d102cc1 (patch) | |
| tree | 3ded2616ac90961ff16ab26762401425e871d504 /libgcc | |
| parent | 9963029a24f2d2510b82e7106fae3f364da33c5d (diff) | |
| download | gcc-e2ebd22acac844ba74e69a34dbf064d41d102cc1.zip gcc-e2ebd22acac844ba74e69a34dbf064d41d102cc1.tar.gz gcc-e2ebd22acac844ba74e69a34dbf064d41d102cc1.tar.bz2 | |
match.pd: Improve zero_one_valued_p
Recently zero_one_valued_p was changed to handle integer_zerop
case specially, because tree_nonzero_bits (@0) == 1 only returns
true for non-constant values with range [0, 1] or constant 1,
constant 0 has tree_nonzero_bits (integer_zero_node) == 0.
The following patch reverts that change and instead checks
that tree_nonzero_bits is <= 1U.
2023-06-07 Jakub Jelinek <jakub@redhat.com>
* match.pd (zero_one_valued_p): Don't handle integer_zerop specially,
instead compare tree_nonzero_bits <= 1U rather than just == 1.
Diffstat (limited to 'libgcc')
0 files changed, 0 insertions, 0 deletions