Following order in Irule processing.

e.g.

 config

root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    pool foo
    profiles {
        http { }
        tcp { }
    }
    rules {
        qux
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 55
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm data-group internal allowed_IPs
ltm data-group internal allowed_IPs {
    records {
        172.28.24.15/32 { }
    }
    type ip
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule qux
ltm rule qux {
    when HTTP_REQUEST {
  set path [string tolower [HTTP::path]]
  log local0. "*********************"
  log local0. "client=[IP::client_addr] host=[HTTP::host] path=$path"

  if { $path starts_with "/blah" } {
    if { [string match "/blah/*/blah2*" $path] } {
      log local0. "$path matches /blah/*/blah2*"
    } else {
      log local0. "$path starts with /blah but not /blah/*/blah2*"
      if { ! [class match [IP::client_addr] equals allowed_IPs]} {
        log local0. "[IP::client_addr] does not match allowed IP list"
      } else {
        log local0. "[IP::client_addr] matches allowed IP list"
      }
    }
  }
}
}

 /var/log/ltm

[root@ve11a:Active:In Sync] config  tail -f /var/log/ltm
Jul  8 00:38:53 ve11a info tmm[29362]: Rule /Common/qux : *********************
Jul  8 00:38:53 ve11a info tmm[29362]: Rule /Common/qux : client=172.28.24.1 host=172.28.24.10 path=/blah/something
Jul  8 00:38:53 ve11a info tmm[29362]: Rule /Common/qux : /blah/something starts with /blah but not /blah/*/blah2*
Jul  8 00:38:53 ve11a info tmm[29362]: Rule /Common/qux : 172.28.24.1 does not match allowed IP list
Jul  8 00:39:23 ve11a info tmm[29362]: Rule /Common/qux : *********************
Jul  8 00:39:23 ve11a info tmm[29362]: Rule /Common/qux : client=172.28.24.15 host=172.28.24.10 path=/blah/something
Jul  8 00:39:23 ve11a info tmm[29362]: Rule /Common/qux : /blah/something starts with /blah but not /blah/*/blah2*
Jul  8 00:39:23 ve11a info tmm[29362]: Rule /Common/qux : 172.28.24.15 matches allowed IP list
Jul  8 00:39:36 ve11a info tmm1[29362]: Rule /Common/qux : *********************
Jul  8 00:39:36 ve11a info tmm1[29362]: Rule /Common/qux : client=172.28.24.1 host=172.28.24.10 path=/blah/1/2/blah2/something
Jul  8 00:39:36 ve11a info tmm1[29362]: Rule /Common/qux : /blah/1/2/blah2/something matches /blah/*/blah2*
Jul  8 00:39:57 ve11a info tmm[29362]: Rule /Common/qux : *********************
Jul  8 00:39:57 ve11a info tmm[29362]: Rule /Common/qux : client=172.28.24.1 host=172.28.24.10 path=/somethingelse