Fix vISA assert "mismatch in bb->funcInfo link"

fangliu2020 · igcbot · commit 44afb9465185 · 2025-01-24T01:21:37.000+01:00
Fix vISA assert "mismatch in bb-&gt;funcInfo link"
diff --git a/visa/FlowGraph.cpp b/visa/FlowGraph.cpp
@@ -1316,6 +1316,15 @@ void FlowGraph::handleReturn(Label_BB_Map &labelMap,
         retAddr->removePredEdge(bb);
       }
     }
+
+    if (bb->isLastInstEOT() && !bb->back()->isReturn()) {
+      G4_BB *succ = bb->getPhysicalSucc();
+      if (succ && succ->Preds.empty() &&
+           succ->getBBType() != G4_BB_INIT_TYPE) {
+        succ->Preds.push_back(bb);
+        bb->Succs.push_back(succ);
+      }
+    }
   }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -1316,6 +1316,15 @@ void FlowGraph::handleReturn(Label_BB_Map &labelMap,`
`1316`	`1316`	`retAddr->removePredEdge(bb);`
`1317`	`1317`	`}`
`1318`	`1318`	`}`
	`1319`	`+`
	`1320`	`+ if (bb->isLastInstEOT() && !bb->back()->isReturn()) {`
	`1321`	`+ G4_BB *succ = bb->getPhysicalSucc();`
	`1322`	`+ if (succ && succ->Preds.empty() &&`
	`1323`	`+ succ->getBBType() != G4_BB_INIT_TYPE) {`
	`1324`	`+ succ->Preds.push_back(bb);`
	`1325`	`+ bb->Succs.push_back(succ);`
	`1326`	`+ }`
	`1327`	`+ }`
`1319`	`1328`	`}`
`1320`	`1329`	`}`
`1321`	`1330`