diff options
Diffstat (limited to 'gcc/tree-vrp.c')
| -rw-r--r-- | gcc/tree-vrp.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c index 48b9f7a072c..d5548ff55eb 100644 --- a/gcc/tree-vrp.c +++ b/gcc/tree-vrp.c @@ -5410,10 +5410,14 @@ register_edge_assert_for_1 (tree op, enum tree_code code, && gimple_assign_rhs_code (op_def) == BIT_IOR_EXPR)) { /* Recurse on each operand. */ - retval |= register_edge_assert_for_1 (gimple_assign_rhs1 (op_def), - code, e, bsi); - retval |= register_edge_assert_for_1 (gimple_assign_rhs2 (op_def), - code, e, bsi); + tree op0 = gimple_assign_rhs1 (op_def); + tree op1 = gimple_assign_rhs2 (op_def); + if (TREE_CODE (op0) == SSA_NAME + && has_single_use (op0)) + retval |= register_edge_assert_for_1 (op0, code, e, bsi); + if (TREE_CODE (op1) == SSA_NAME + && has_single_use (op1)) + retval |= register_edge_assert_for_1 (op1, code, e, bsi); } else if (gimple_assign_rhs_code (op_def) == BIT_NOT_EXPR && TYPE_PRECISION (TREE_TYPE (gimple_assign_lhs (op_def))) == 1) |