createHier.tcl

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###############################################################################
# Copyright (c) 2005-2024 by Altair Engineering, Inc.
# All rights reserved.
#
# Altair Engineering, Inc. makes this software available as part of the Vision
# tool platform.  As long as you are a licensee of the Vision tool platform
# you may make copies of the software and modify it to be used within the
# Vision tool platform, but you must include all of this notice on any copy.
# Redistribution without written permission to any third party, with or
# without modification, is not permitted.
# Altair Engineering, Inc. does not warrant that this software is error free
# or fit for any purpose.  Altair Engineering, Inc. disclaims any liability for
# all claims, expenses, losses, damages and costs any user may incur as a
# result of using, copying or modifying the software.
# =============================================================================
#   @userware
#       Re-Create Hierarchy
#   @section
#       Modify the Loaded Database
#   @description
#       Re-create the hierarchy structure of a flat design based on the
#       instance names using `$db oper addhier`.
#   @files
#       createHier.tcl
#   @example
#       demo/verilog/bus85.f
#   @cmdline
#       -F @example[0]
#       -userware @files[0]
#   @tag
#       zdb spice netlist
###############################################################################


# -----------------------------------------------------------------------------
# createHier - Loop over all instances in a flat design and (re)create the
#              hierarchy structure based on the instance names.
# -----------------------------------------------------------------------------
#
proc createHier {db} {
    set cnt 0

    if {$db == {}} {
        set db [gui database get]
    }

    array set _hash {}
    $db foreach top top {
        $db foreach inst $top inst {
            set path [split [$db oid oname $inst] .]
            while {[llength $path] > 0} {
                set iName [lindex $path end]
                set path  [lrange $path 0 end-1]
                lappend _hash($path) $inst
            }
        }
    }

    foreach path [lsort -command _compare [array names _hash]] {
        if {[llength $path] == 0} {
            continue
        }
        set idx  [expr {[llength $path] - 1}]
        set elem [lindex $path $idx]
        $db oper addhier m${cnt}_$elem i${cnt}_$elem $_hash($path)
        incr cnt
    }
    gui database changed $db
}


# -----------------------------------------------------------------------------
# _compare - custom lsort compare function. Compares the length of a path.
# -----------------------------------------------------------------------------
#
proc _compare {a b} {
    if {[llength $a] < [llength $b]} {
        return -1
    } else {
        return 1
    }
    return 0
}


# =============================================================================
# Add "Create Hierarchy" to a new Userware main menu.
# If we have a database, then start createHier now.
# =============================================================================
#
set db [gui database get]

gui menu command {"Userware" "Create Hierarchy"} [list createHier $db]

if {$db != {}} {
    createHier $db
}