diff options
Diffstat (limited to 'gcc/tree-ssa-structalias.c')
| -rw-r--r-- | gcc/tree-ssa-structalias.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c index 45efd55..8c9ed6c 100644 --- a/gcc/tree-ssa-structalias.c +++ b/gcc/tree-ssa-structalias.c @@ -3541,11 +3541,15 @@ do_structure_copy (tree lhsop, tree rhsop) lhsv = get_varinfo (lhsp->var); rhsv = get_varinfo (rhsp->var); if (lhsv->may_have_pointers - && ranges_overlap_p (lhsv->offset + rhsoffset, lhsv->size, - rhsv->offset + lhsoffset, rhsv->size)) + && (lhsv->is_full_var + || rhsv->is_full_var + || ranges_overlap_p (lhsv->offset + rhsoffset, lhsv->size, + rhsv->offset + lhsoffset, rhsv->size))) process_constraint (new_constraint (*lhsp, *rhsp)); - if (lhsv->offset + rhsoffset + lhsv->size - > rhsv->offset + lhsoffset + rhsv->size) + if (!rhsv->is_full_var + && (lhsv->is_full_var + || (lhsv->offset + rhsoffset + lhsv->size + > rhsv->offset + lhsoffset + rhsv->size))) { ++k; if (k >= VEC_length (ce_s, rhsc)) |