Merge pull request #2481 from The-OpenROAD-Project-staging/skip-last-gasp

add varaible SKIP_LAST_GASP to control repair_setup

Author: maliberty

flow/scripts/util.tcl

@@ -26,6 +26,7 @@ proc repair_timing_helper { {hold_margin 1} } {
   append_env_var additional_args SKIP_PIN_SWAP -skip_pin_swap 0
   append_env_var additional_args SKIP_GATE_CLONING -skip_gate_cloning 0
   append_env_var additional_args SKIP_BUFFER_REMOVAL -skip_buffer_removal 0
+  append_env_var additional_args SKIP_LAST_GASP -skip_last_gasp 0
   puts "repair_timing [join $additional_args " "]"
   repair_timing {*}$additional_args
 }

flow/scripts/variables.yaml

@@ -344,6 +344,9 @@ SETUP_SLACK_MARGIN:
 SKIP_GATE_CLONING:
   description: >
     Do not use gate cloning transform to fix timing violations (default: use gate cloning).
+SKIP_LAST_GASP:
+  description: >
+    Do not use last gasp optimization to fix timing violations (default: use gate last gasp).
 SKIP_PIN_SWAP:
   description: >
     Do not use pin swapping as a transform to fix timing violations (default: use pin swapping).