diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2024-02-19 09:42:22 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2024-02-19 09:42:22 +0100 |
| commit | 2bfdeca19d96239479488cd07b1e952d95a02f72 (patch) | |
| tree | 954f54f7dca89d14526450371fdf87e2be1784a8 /libcpp | |
| parent | 6082024891e421bfd81d8f708a7411f4019d0d97 (diff) | |
| download | gcc-2bfdeca19d96239479488cd07b1e952d95a02f72.zip gcc-2bfdeca19d96239479488cd07b1e952d95a02f72.tar.gz gcc-2bfdeca19d96239479488cd07b1e952d95a02f72.tar.bz2 | |
match.pd: Fix ICE on BIT_INSERT_EXPR of BIT_FIELD_REF folding [PR113967]
The following testcase ICEs, because BIT_FIELD_REF's position is not
multiple of the vector element's bit size and the code uses exact_div
to divide those 2 values.
For BIT_INSERT_EXPR, the tree-cfg.cc verification verifies the position
is a multiple of the inserted bit size when inserting into vectors,
but for BIT_FIELD_REF the position can be arbitrary if within the range.
The following patch fixes that.
2024-02-19 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/113967
* match.pd (bit_insert @0 (BIT_FIELD_REF @1 ..) ..): Require
in condition that @rpos is multiple of vector element size.
* gcc.dg/pr113967.c: New test.
Diffstat (limited to 'libcpp')
0 files changed, 0 insertions, 0 deletions