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| author | Jakub Jelinek <jakub@redhat.com> | 2023-01-19 21:00:08 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2023-01-19 21:00:08 +0100 |
| commit | 46644ec99cb355845b23bb1d02775c057ed8ee88 (patch) | |
| tree | 6337106ebc645131d1f267b8ea906b85f7f5cada /gcc | |
| parent | 0d6f7b1dd62e9c9dccb0b9b673f9cc3238b7ea6d (diff) | |
| download | gcc-46644ec99cb355845b23bb1d02775c057ed8ee88.zip gcc-46644ec99cb355845b23bb1d02775c057ed8ee88.tar.gz gcc-46644ec99cb355845b23bb1d02775c057ed8ee88.tar.bz2 | |
openmp: Fix up OpenMP expansion of non-rectangular loops [PR108459]
expand_omp_for_init_counts was using for the case where collapse(2)
inner loop has init expression dependent on non-constant multiple of
the outer iterator and the condition upper bound expression doesn't
depend on the outer iterator fold_unary (NEGATE_EXPR, ...). This
will just return NULL if it can't be folded, we need fold_build1
instead.
2023-01-19 Jakub Jelinek <jakub@redhat.com>
PR middle-end/108459
* omp-expand.cc (expand_omp_for_init_counts): Use fold_build1 rather
than fold_unary for NEGATE_EXPR.
* testsuite/libgomp.c/pr108459.c: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/omp-expand.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/omp-expand.cc b/gcc/omp-expand.cc index c7ef419..940454b 100644 --- a/gcc/omp-expand.cc +++ b/gcc/omp-expand.cc @@ -2003,8 +2003,8 @@ expand_omp_for_init_counts (struct omp_for_data *fd, gimple_stmt_iterator *gsi, t = fold_build2 (MINUS_EXPR, itype, unshare_expr (fd->loops[i].m2), unshare_expr (fd->loops[i].m1)); else if (fd->loops[i].m1) - t = fold_unary (NEGATE_EXPR, itype, - unshare_expr (fd->loops[i].m1)); + t = fold_build1 (NEGATE_EXPR, itype, + unshare_expr (fd->loops[i].m1)); else t = unshare_expr (fd->loops[i].m2); tree m2minusm1 |