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Diffstat (limited to 'gcc/tree-ssa-structalias.c')
| -rw-r--r-- | gcc/tree-ssa-structalias.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c index 09b8762..ac2c7dc 100644 --- a/gcc/tree-ssa-structalias.c +++ b/gcc/tree-ssa-structalias.c @@ -3674,8 +3674,17 @@ find_func_aliases (gimple origt) } get_constraint_for_ptr_offset (dest, NULL_TREE, &lhsc); do_deref (&lhsc); - ac.type = SCALAR; - ac.var = integer_id; + if (flag_delete_null_pointer_checks + && integer_zerop (gimple_call_arg (t, 1))) + { + ac.type = ADDRESSOF; + ac.var = nothing_id; + } + else + { + ac.type = SCALAR; + ac.var = integer_id; + } ac.offset = 0; for (i = 0; VEC_iterate (ce_s, lhsc, i, lhsp); ++i) process_constraint (new_constraint (*lhsp, ac)); |