diff options
Diffstat (limited to 'gcc/tree-ssa-structalias.c')
| -rw-r--r-- | gcc/tree-ssa-structalias.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c index fbe9ddf..2ddbe0f 100644 --- a/gcc/tree-ssa-structalias.c +++ b/gcc/tree-ssa-structalias.c @@ -3239,7 +3239,33 @@ find_func_aliases (tree origt) get_constraint_for (PHI_RESULT (t), &lhsc); for (i = 0; i < PHI_NUM_ARGS (t); i++) { + tree rhstype; + tree strippedrhs = PHI_ARG_DEF (t, i); + + STRIP_NOPS (strippedrhs); + rhstype = TREE_TYPE (strippedrhs); get_constraint_for (PHI_ARG_DEF (t, i), &rhsc); + + if (TREE_CODE (strippedrhs) == ADDR_EXPR + && AGGREGATE_TYPE_P (TREE_TYPE (rhstype)) + && VEC_length (ce_s, rhsc) == 1) + { + struct constraint_expr *origrhs; + varinfo_t origvar; + struct constraint_expr tmp; + + gcc_assert (VEC_length (ce_s, rhsc) == 1); + origrhs = VEC_last (ce_s, rhsc); + tmp = *origrhs; + VEC_pop (ce_s, rhsc); + origvar = get_varinfo (origrhs->var); + for (; origvar; origvar = origvar->next) + { + tmp.var = origvar->id; + VEC_safe_push (ce_s, heap, rhsc, &tmp); + } + } + for (j = 0; VEC_iterate (ce_s, lhsc, j, c); j++) { struct constraint_expr *c2; |