File size: 1,696 Bytes
5cdf637 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | # Opening the Clock Tree Viewer on a design that has a virtual clock (a
# create_clock with no object list, so sta::Clock::pins() is empty) must not
# error out. ClockTree's constructor used to dereference pins().begin()
# unconditionally; that is undefined behaviour for a virtual clock and raised
# ORD-2018 in libc++ builds while silently yielding a null net in libstdc++
# builds. See OpenROAD-flow-scripts #4371.
set script_dir [file dirname [info script]]
set openroad_test_dir [file normalize [file join $script_dir .. .. .. test]]
source [file join $openroad_test_dir helpers.tcl]
if { ![gui::supported] } {
# Built without the GUI; nothing to exercise.
puts "pass"
} else {
if { ![info exists ::env(QT_QPA_PLATFORM)] } {
set ::env(QT_QPA_PLATFORM) offscreen
}
suppress_message ODB 127
suppress_message ODB 128
suppress_message ODB 130
suppress_message ODB 131
suppress_message ODB 132
suppress_message ODB 133
suppress_message ODB 134
suppress_message ODB 227
read_liberty [file join $openroad_test_dir Nangate45 Nangate45_typ.lib]
read_lef [file join $openroad_test_dir Nangate45 Nangate45.lef]
read_def [file join $openroad_test_dir gcd_nangate45.def]
create_clock -name core_clock -period 2 [get_ports clk]
# No object list: this clock is virtual and has no pins.
create_clock -name vclk_core_clock -period 2
set image [make_result_file clocktree_virtual_clock.png]
gui::show [subst -nocommands {
gui::show_widget {Clock Tree Viewer}
save_clocktree_image -clock core_clock -width 256 -height 256 $image
}] false
if { [file exists $image] && [file size $image] > 0 } {
puts "pass"
} else {
puts "fail"
}
}
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