rsz: fix tie placement status

src/rsz/src/Resizer.cc

@@ -3360,6 +3360,22 @@ sta::Instance* Resizer::createNewTieCellForLoadPin(const sta::Pin* load_pin,
                      new_tie_loc,
                      odb::dbNameUniquifyType::IF_NEEDED_WITH_UNDERSCORE);
 
+  // If the load pin's instance is not placed, the computed location is
+  // meaningless; mark the new tie cell as unplaced
+  if (!db_network_->isPlaced(load_pin)) {
+    dbInst* new_tie_db_inst = db_network_->staToDb(new_tie_inst);
+    new_tie_db_inst->setPlacementStatus(odb::dbPlacementStatus::UNPLACED);
+  }
+  debugPrint(logger_,
+             RSZ,
+             "repair_tie_fanout",
+             1,
+             "Created tie instance {} for load pin {} at location ({}, {})",
+             network_->name(new_tie_inst),
+             sdc_network_->pathName(load_pin),
+             dbuToMeters(new_tie_loc.getX()),
+             dbuToMeters(new_tie_loc.getY()));
+
   // If the load pin is not in the top module, move the new tie instance
   sta::Instance* load_inst = network_->instance(load_pin);
   if (!network_->isTopInstance(load_inst)) {

src/rsz/test/repair_tie10_hier.ok

@@ -60,7 +60,7 @@ Net gcd/ALU_16_0_16_0_16_unused_CO[14:0]_X_HAN_CARLSON/BI
  Number of pins: 2
 
 Driver pins
- _395__1/H output (TIEHIx1_ASAP7_75t_R) (0, 0)
+ _395__1/H output (TIEHIx1_ASAP7_75t_R)
 
 Load pins
  _395_/_087_/A input (BUFx2_ASAP7_75t_R) 0.44-0.58
@@ -77,7 +77,7 @@ Net gcd/ALU_16_0_16_0_16_unused_CO[14:0]_X_HAN_CARLSON/CI
  Number of pins: 2
 
 Driver pins
- _395__2/H output (TIEHIx1_ASAP7_75t_R) (0, 0)
+ _395__2/H output (TIEHIx1_ASAP7_75t_R)
 
 Load pins
  _395_/_153_/B input (FAx1_ASAP7_75t_R) 1.80-2.18

src/rsz/test/repair_tie11_hier.ok

@@ -41,4 +41,6 @@ Hierarchical pins
 0.0 0.0
 0.0 0.1
 No differences found.
-No differences found.
+Differences found at line 9.
+    - alu0_1 TIEHIx1_ASAP7_75t_R + SOURCE TIMING + PLACED ( 0 0 ) N ;
+    - alu0_1 TIEHIx1_ASAP7_75t_R + SOURCE TIMING + UNPLACED ;

src/rsz/test/repair_tie12_hier.ok

@@ -42,4 +42,6 @@ Hierarchical pins
 0.0 0.0
 0.0 0.1
 No differences found.
-No differences found.
+Differences found at line 9.
+    - alu0_1 TIEHIx1_ASAP7_75t_R + SOURCE TIMING + PLACED ( 0 0 ) N ;
+    - alu0_1 TIEHIx1_ASAP7_75t_R + SOURCE TIMING + UNPLACED ;

src/rsz/test/repair_tie9.ok

@@ -4,4 +4,6 @@
 [INFO ODB-0131]     Created 3 components and 12 component-terminals.
 [INFO ODB-0133]     Created 1 nets and 3 connections.
 [INFO RSZ-0042] Inserted 1 tie sky130_fd_sc_hd__conb_1 instances.
-No differences found.
+Differences found at line 10.
+    - u0_1 sky130_fd_sc_hd__conb_1 + SOURCE TIMING + PLACED ( 280 1195 ) N ;
+    - u0_1 sky130_fd_sc_hd__conb_1 + SOURCE TIMING + UNPLACED ;