[turbofan] Don't serialize for CallNoFeedback bytecode

We don't normally generate code for that.

R=jarin@chromium.org

Bug: v8:7790
Change-Id: Icd8b61e894b721ac44fd1d79d2460def9c8c5af3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1535824
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60457}

src/compiler/serializer-for-background-compilation.cc

@@ -453,11 +453,6 @@ void SerializerForBackgroundCompilation::VisitCallAnyReceiver(
   ProcessCallVarArgs(iterator, ConvertReceiverMode::kAny);
 }
 
-void SerializerForBackgroundCompilation::VisitCallNoFeedback(
-    BytecodeArrayIterator* iterator) {
-  ProcessCallVarArgs(iterator, ConvertReceiverMode::kNullOrUndefined);
-}
-
 void SerializerForBackgroundCompilation::VisitCallProperty(
     BytecodeArrayIterator* iterator) {
   ProcessCallVarArgs(iterator, ConvertReceiverMode::kNullOrUndefined);
@@ -601,10 +596,7 @@ void SerializerForBackgroundCompilation::ProcessCallVarArgs(
       environment()->register_hints(iterator->GetRegisterOperand(0));
   interpreter::Register first_reg = iterator->GetRegisterOperand(1);
   int reg_count = static_cast<int>(iterator->GetRegisterCountOperand(2));
-  FeedbackSlot slot;
-  if (iterator->current_bytecode() != interpreter::Bytecode::kCallNoFeedback) {
-    slot = iterator->GetSlotOperand(3);
-  }
+  FeedbackSlot slot = iterator->GetSlotOperand(3);
 
   HintsVector arguments(zone());
   // The receiver is either given in the first register or it is implicitly

src/compiler/serializer-for-background-compilation.h

@@ -84,6 +84,7 @@ namespace compiler {
   V(JumpIfUndefinedConstant)
 
 #define INGORED_BYTECODE_LIST(V) \
+  V(CallNoFeedback)              \
   V(LdaNamedPropertyNoFeedback)  \
   V(StaNamedPropertyNoFeedback)  \
   V(TestEqual)                   \
@@ -104,7 +105,6 @@ namespace compiler {
 
 #define SUPPORTED_BYTECODE_LIST(V)   \
   V(CallAnyReceiver)                 \
-  V(CallNoFeedback)                  \
   V(CallProperty)                    \
   V(CallProperty0)                   \
   V(CallProperty1)                   \