diff options
Diffstat (limited to 'gcc/tree-ssa-alias.c')
| -rw-r--r-- | gcc/tree-ssa-alias.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/gcc/tree-ssa-alias.c b/gcc/tree-ssa-alias.c index b0ab6fb..b516546 100644 --- a/gcc/tree-ssa-alias.c +++ b/gcc/tree-ssa-alias.c @@ -194,7 +194,7 @@ ptr_deref_may_alias_decl_p (tree ptr, tree decl) ptr = TREE_OPERAND (base, 0); else if (base && DECL_P (base)) - return base == decl; + return compare_base_decls (base, decl) != 0; else if (base && CONSTANT_CLASS_P (base)) return false; @@ -805,8 +805,10 @@ nonoverlapping_component_refs_of_decl_p (tree ref1, tree ref2) ref2 = TREE_OPERAND (TREE_OPERAND (ref2, 0), 0); } - /* We must have the same base DECL. */ - gcc_assert (ref1 == ref2); + /* Bases must be either same or uncomparable. */ + gcc_checking_assert (ref1 == ref2 + || (DECL_P (ref1) && DECL_P (ref2) + && compare_base_decls (ref1, ref2) != 0)); /* Pop the stacks in parallel and examine the COMPONENT_REFs of the same rank. This is sufficient because we start from the same DECL and you @@ -989,7 +991,7 @@ decl_refs_may_alias_p (tree ref1, tree base1, gcc_checking_assert (DECL_P (base1) && DECL_P (base2)); /* If both references are based on different variables, they cannot alias. */ - if (base1 != base2) + if (compare_base_decls (base1, base2) == 0) return false; /* If both references are based on the same variable, they cannot alias if |