{
tree def_stmt = SSA_NAME_DEF_STMT (candidate);
if (TREE_CODE (def_stmt) == GIMPLE_MODIFY_STMT
- && (TREE_CODE (GIMPLE_STMT_OPERAND (def_stmt, 1)) == NOP_EXPR
- || TREE_CODE (GIMPLE_STMT_OPERAND (def_stmt, 1)) == CONVERT_EXPR))
+ && CONVERT_EXPR_P (GIMPLE_STMT_OPERAND (def_stmt, 1)))
{
tree rhs = GIMPLE_STMT_OPERAND (def_stmt, 1);
if (TYPE_PRECISION (TREE_TYPE (rhs))