Predecode: Fixed the bug that Predecode did not compare jal offset when predicting taken

src/main/scala/xiangshan/frontend/PreDecode.scala

@@ -185,9 +185,9 @@ class PreDecode(implicit p: Parameters) extends XSModule with HasPdConst{
                        //An not-CFI instruction is predicted taken
     val notCFIFault    = (validStart(i)  && i.U === bbOffset && io.out.pd(i).notCFI && bbTaken)
                        //A jal instruction is predicted not taken
-    val jalFault       = (validStart(i)  && !bbTaken && io.out.pd(i).isJal)
+    val jalFault       = (validStart(i)  && !bbTaken && io.out.pd(i).isJal) || (validStart(i) && bbTaken && i.U < bbOffset && io.out.pd(i).isJal)
                        //A ret instruction is predicted not taken
-    val retFault       = (validStart(i)  && !bbTaken && io.out.pd(i).isRet)
+    val retFault       = (validStart(i)  && !bbTaken && io.out.pd(i).isRet) || (validStart(i) && bbTaken && i.U < bbOffset && io.out.pd(i).isRet)
                        //An invalid instruction is predicted taken
     val invalidInsFault  = (!validStart(i)  && i.U === bbOffset && bbTaken)