diff options
Diffstat (limited to 'gcc/tree-ssa-structalias.c')
| -rw-r--r-- | gcc/tree-ssa-structalias.c | 20 |
1 files changed, 3 insertions, 17 deletions
diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c index f219909..26ee85a 100644 --- a/gcc/tree-ssa-structalias.c +++ b/gcc/tree-ssa-structalias.c @@ -962,10 +962,6 @@ set_union_with_increment (bitmap to, bitmap from, HOST_WIDE_INT inc) if (bitmap_bit_p (from, anything_id)) return bitmap_set_bit (to, anything_id); - /* For zero offset simply union the solution into the destination. */ - if (inc == 0) - return bitmap_ior_into (to, from); - /* If the offset is unknown we have to expand the solution to all subfields. */ if (inc == UNKNOWN_OFFSET) @@ -1788,14 +1784,13 @@ do_complex_constraint (constraint_graph_t graph, constraint_t c, bitmap delta) else { bitmap tmp; - bitmap solution; bool flag = false; - gcc_checking_assert (c->rhs.type == SCALAR && c->lhs.type == SCALAR); - solution = get_varinfo (c->rhs.var)->solution; + gcc_checking_assert (c->rhs.type == SCALAR && c->lhs.type == SCALAR + && c->rhs.offset != 0 && c->lhs.offset == 0); tmp = get_varinfo (c->lhs.var)->solution; - flag = set_union_with_increment (tmp, solution, c->rhs.offset); + flag = set_union_with_increment (tmp, delta, c->rhs.offset); if (flag) bitmap_set_bit (changed, c->lhs.var); @@ -3712,15 +3707,6 @@ make_transitive_closure_constraints (varinfo_t vi) lhs.offset = 0; rhs.type = DEREF; rhs.var = vi->id; - rhs.offset = 0; - process_constraint (new_constraint (lhs, rhs)); - - /* VAR = VAR + UNKNOWN; */ - lhs.type = SCALAR; - lhs.var = vi->id; - lhs.offset = 0; - rhs.type = SCALAR; - rhs.var = vi->id; rhs.offset = UNKNOWN_OFFSET; process_constraint (new_constraint (lhs, rhs)); } |