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[DO NOT MERGE] synthesis: minimal synthesis to drive MAX_UNGROUP_SIZE policy #1755

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[DO NOT MERGE] synthesis: minimal synthesis to drive MAX_UNGROUP_SIZE policy #1755

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17 changes: 15 additions & 2 deletions flow/scripts/synth_hier_report.tcl
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Original file line number Diff line number Diff line change
@@ -1,7 +1,20 @@
source $::env(SCRIPTS_DIR)/synth_preamble.tcl

# Hierarchical synthesis
synth -top $::env(DESIGN_NAME)
# Minimal hierarchical synthesis to get rough area numbers to drive
# the MAX_UNGROUP_SIZE policy.
synth -run :coarse -top $::env(DESIGN_NAME)
# These commands are cherry-picked from the "synth -run coarse:" list
# of commands in the Yosys manual.
#
# 'proc' pass is called 'procs' to avoid conflict with tcl 'proc' command
procs
memory -nomap
memory_map
techmap
hierarchy -check
stat
check

if { [info exist ::env(ADDER_MAP_FILE)] && [file isfile $::env(ADDER_MAP_FILE)] } {
techmap -map $::env(ADDER_MAP_FILE)
}
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