Shorten floorplan

Signed-off-by: Bartłomiej Chmiel <bchmiel@antmicro.com>

Author: b-chmiel

flow/scripts/floorplan.tcl

@@ -145,7 +145,7 @@ if { $::env(REMOVE_ABC_BUFFERS) } {
   remove_buffers
 } else {
   # Skip clone & split
-  repair_timing_helper -setup -skip_last_gasp -sequence "unbuffer,sizeup,swap,vt_swap"
+  remove_buffers
 }
 
 puts "Default units for flow"

flow/scripts/synth.tcl

@@ -125,7 +125,6 @@ if { [env_var_exists_and_non_empty SYNTH_RETIME_MODULES] } {
   select $::env(SYNTH_RETIME_MODULES)
   opt -fast -full
   memory_map
-  opt -full
   techmap
   abc -dff -script $::env(SCRIPTS_DIR)/abc_retime.script
   select -clear
@@ -150,7 +149,7 @@ delete t:\$print
 renames -wire
 
 # Optimize the design
-opt -purge
+opt -fast -purge
 
 # Technology mapping of adders
 if {
@@ -188,7 +187,6 @@ if { [env_var_exists_and_non_empty DFF_LIB_FILE] } {
 } else {
   dfflibmap {*}$lib_args {*}$lib_dont_use_args
 }
-opt
 
 # Replace undef values with defined constants
 setundef -zero

flow/scripts/util.tcl

@@ -209,7 +209,7 @@ proc hier_options { } {
     error "SYNTH_WRAPPED_OPERATORS or SWAP_ARITH_OPERATORS require OPENROAD_HIERARCHICAL to be set."
   }
   if { $::env(OPENROAD_HIERARCHICAL) } {
-    return "-hier"
+    return ""
   } else {
     return ""
   }