rsz: add -max_iterations option for repair_timing

Signed-off-by: Eder Monteiro <emrmonteiro@precisioninno.com>

Author: eder-matheus

src/rsz/include/rsz/Resizer.hh

@@ -276,6 +276,7 @@ class Resizer : public dbStaState, public dbNetworkObserver
   bool repairSetup(double setup_margin,
                    double repair_tns_end_percent,
                    int max_passes,
+                   int max_iterations,
                    int max_repairs_per_pass,
                    bool match_cell_footprint,
                    bool verbose,
@@ -304,6 +305,7 @@ class Resizer : public dbStaState, public dbNetworkObserver
                   // Max buffer count as percent of design instance count.
                   float max_buffer_percent,
                   int max_passes,
+                  int max_iterations,
                   bool match_cell_footprint,
                   bool verbose);
   void repairHold(const Pin* end_pin,

src/rsz/src/Resizer.cc

@@ -4354,6 +4354,7 @@ void Resizer::cloneClkInverter(Instance* inv)
 bool Resizer::repairSetup(double setup_margin,
                           double repair_tns_end_percent,
                           int max_passes,
+                          int max_iterations,
                           int max_repairs_per_pass,
                           bool match_cell_footprint,
                           bool verbose,
@@ -4379,6 +4380,7 @@ bool Resizer::repairSetup(double setup_margin,
   return repair_setup_->repairSetup(setup_margin,
                                     repair_tns_end_percent,
                                     max_passes,
+                                    max_iterations,
                                     max_repairs_per_pass,
                                     verbose,
                                     sequence,
@@ -4419,6 +4421,7 @@ bool Resizer::repairHold(
     // Max buffer count as percent of design instance count.
     float max_buffer_percent,
     int max_passes,
+    int max_iterations,
     bool match_cell_footprint,
     bool verbose)
 {
@@ -4445,6 +4448,7 @@ bool Resizer::repairHold(
                                   allow_setup_violations,
                                   max_buffer_percent,
                                   max_passes,
+                                  max_iterations,
                                   verbose);
 }
 

src/rsz/src/Resizer.i

@@ -362,6 +362,7 @@ bool
 repair_setup(double setup_margin,
              double repair_tns_end_percent,
              int max_passes,
+             int max_iterations,
              int max_repairs_per_pass,
              bool match_cell_footprint,
              bool verbose,
@@ -378,9 +379,9 @@ repair_setup(double setup_margin,
   ensureLinked();
   Resizer *resizer = getResizer();
   return resizer->repairSetup(setup_margin, repair_tns_end_percent,
-                       max_passes, max_repairs_per_pass,
-                       match_cell_footprint, verbose,
-                       sequence,
+                       max_passes, max_iterations,
+                       max_repairs_per_pass, match_cell_footprint,
+                       verbose, sequence,
                        skip_pin_swap, skip_gate_cloning,
                        skip_size_down,
                        skip_buffering, skip_buffer_removal,
@@ -409,6 +410,7 @@ repair_hold(double setup_margin,
             bool allow_setup_violations,
             float max_buffer_percent,
             int max_passes,
+            int max_iterations,
             bool match_cell_footprint,
             bool verbose)
 {
@@ -417,7 +419,8 @@ repair_hold(double setup_margin,
   return resizer->repairHold(setup_margin, hold_margin,
                       allow_setup_violations,
                       max_buffer_percent, max_passes,
-                      match_cell_footprint, verbose);
+                      max_iterations, match_cell_footprint,
+                      verbose);
 }
 
 void

src/rsz/src/Resizer.tcl

@@ -251,6 +251,7 @@ sta::define_cmd_args "repair_timing" {[-setup] [-hold]\
                                         [-skip_crit_vt_swap]\
                                         [-repair_tns tns_end_percent]\
                                         [-max_passes passes]\
+                                        [-max_iterations iterations]\
                                         [-max_buffer_percent buffer_percent]\
                                         [-max_utilization util] \
                                         [-match_cell_footprint] \
@@ -261,7 +262,7 @@ proc repair_timing { args } {
   sta::parse_key_args "repair_timing" args \
     keys {-setup_margin -hold_margin -slack_margin \
             -libraries -max_utilization -max_buffer_percent -sequence \
-            -recover_power -repair_tns -max_passes -max_repairs_per_pass} \
+            -recover_power -repair_tns -max_passes -max_iterations -max_repairs_per_pass} \
     flags {-setup -hold -allow_setup_violations -skip_pin_swap -skip_gate_cloning \
              -skip_size_down -skip_buffering -skip_buffer_removal -skip_last_gasp \
              -skip_vt_swap -skip_crit_vt_swap -match_cell_footprint -verbose}
@@ -336,6 +337,11 @@ proc repair_timing { args } {
     set max_passes $keys(-max_passes)
   }
 
+  set max_iterations -1
+  if { [info exists keys(-max_iterations)] } {
+    set max_iterations $keys(-max_iterations)
+  }
+
   set match_cell_footprint [info exists flags(-match_cell_footprint)]
   if { [design_is_routed] } {
     est::set_parasitics_src "detailed_routing"
@@ -357,15 +363,15 @@ proc repair_timing { args } {
   } else {
     if { $setup } {
       set repaired_setup [rsz::repair_setup $setup_margin $repair_tns_end_percent $max_passes \
-        $max_repairs_per_pass $match_cell_footprint $verbose \
+        $max_iterations $max_repairs_per_pass $match_cell_footprint $verbose \
         $sequence \
         $skip_pin_swap $skip_gate_cloning $skip_size_down $skip_buffering \
         $skip_buffer_removal $skip_last_gasp $skip_vt_swap $skip_crit_vt_swap]
     }
     if { $hold } {
       set repaired_hold [rsz::repair_hold $setup_margin $hold_margin \
         $allow_setup_violations $max_buffer_percent $max_passes \
-        $match_cell_footprint $verbose]
+        $max_iterations $match_cell_footprint $verbose]
     }
   }