BPU: add false_hit and new_br_insert_pos in bpu update interface

src/main/scala/xiangshan/decoupled-frontend/Bim.scala

@@ -89,7 +89,8 @@ class BIM(implicit p: Parameters) extends BasePredictor with BimParams with BPUU
     satUpdate(oldCtrs(i), 2, newTakens(i))
   ))
 
-  val need_to_update = VecInit((0 until numBr).map(i => u_valid && update.preds.is_br(i)))
+  val update_mask = LowerMask(PriorityEncoderOH(update.preds.taken_mask.asUInt))
+  val need_to_update = VecInit((0 until numBr).map(i => u_valid && update.preds.is_br(i) && update_mask(i)))
 
   when (reset.asBool) { wrbypass_ctr_valids.foreach(_ := VecInit(Seq.fill(numBr)(false.B)))}
 

src/main/scala/xiangshan/decoupled-frontend/FTB.scala

@@ -163,7 +163,7 @@ class FTB(implicit p: Parameters) extends BasePredictor with FTBParams {
   }
 
   val s1_latch_is_br         = ftb_entry.brValids
-  val s1_latch_is_jal        = ftb_entry.jmpValid && !(ftb_entry.isJalr || ftb_entry.isCall ||ftb_entry.isRet)
+  val s1_latch_is_jal        = ftb_entry.jmpValid && !ftb_entry.isJalr
   val s1_latch_is_jalr       = ftb_entry.isJalr
   val s1_latch_is_call       = ftb_entry.isCall
   val s1_latch_is_ret        = ftb_entry.isRet