[csa][cleanup] Remove unused functions

Bug: v8:9708, v8:6949
Change-Id: I60237b03a474a9d8e30bf48b6d9196a07fb81171
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2212261Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67941}

src/codegen/code-stub-assembler.cc

@@ -136,17 +136,6 @@ void CodeStubAssembler::Check(SloppyTNode<Word32T> condition_node,
   Check(branch, message, file, line, extra_nodes);
 }
 
-template <>
-TNode<Smi> CodeStubAssembler::IntPtrToParameter<Smi>(TNode<IntPtrT> value) {
-  return SmiTag(value);
-}
-template <>
-TNode<IntPtrT> CodeStubAssembler::IntPtrToParameter<IntPtrT>(
-    TNode<IntPtrT> value) {
-  return value;
-}
-
-
 void CodeStubAssembler::IncrementCallCount(
     TNode<FeedbackVector> feedback_vector, TNode<UintPtrT> slot_id) {
   Comment("increment call count");
@@ -292,33 +281,6 @@ Node* CodeStubAssembler::IntPtrOrSmiConstant(int value, ParameterMode mode) {
   }
 }
 
-bool CodeStubAssembler::IsIntPtrOrSmiConstantZero(TNode<Smi> test) {
-  Smi smi_test;
-  if (ToSmiConstant(test, &smi_test) && smi_test.value() == 0) {
-    return true;
-  }
-  return false;
-}
-
-bool CodeStubAssembler::IsIntPtrOrSmiConstantZero(TNode<IntPtrT> test) {
-  int32_t constant_test;
-  if (ToInt32Constant(test, &constant_test) && constant_test == 0) {
-    return true;
-  }
-  return false;
-}
-
-bool CodeStubAssembler::IsIntPtrOrSmiConstantZero(Node* test,
-                                                  ParameterMode mode) {
-  if (mode == INTPTR_PARAMETERS) {
-    return IsIntPtrOrSmiConstantZero(UncheckedCast<IntPtrT>(test));
-  } else {
-    DCHECK_EQ(mode, SMI_PARAMETERS);
-    return IsIntPtrOrSmiConstantZero(UncheckedCast<Smi>(test));
-  }
-  return false;
-}
-
 bool CodeStubAssembler::TryGetIntPtrOrSmiConstantValue(Node* maybe_constant,
                                                        int* value,
                                                        ParameterMode mode) {

src/codegen/code-stub-assembler.h

@@ -370,15 +370,6 @@ class V8_EXPORT_PRIVATE CodeStubAssembler
 #endif
   }
 
-  MachineRepresentation ParameterRepresentation(ParameterMode mode) const {
-    return mode == INTPTR_PARAMETERS ? MachineType::PointerRepresentation()
-                                     : MachineRepresentation::kTaggedSigned;
-  }
-
-  MachineRepresentation OptimalParameterRepresentation() const {
-    return ParameterRepresentation(OptimalParameterMode());
-  }
-
   TNode<IntPtrT> ParameterToIntPtr(TNode<Smi> value) { return SmiUntag(value); }
   TNode<IntPtrT> ParameterToIntPtr(TNode<IntPtrT> value) { return value; }
   // TODO(v8:9708): remove once all uses are ported.
@@ -387,18 +378,6 @@ class V8_EXPORT_PRIVATE CodeStubAssembler
     return UncheckedCast<IntPtrT>(value);
   }
 
-  template <typename TIndex>
-  TNode<TIndex> IntPtrToParameter(TNode<IntPtrT> value);
-
-  Node* IntPtrToParameter(SloppyTNode<IntPtrT> value, ParameterMode mode) {
-    if (mode == SMI_PARAMETERS) return SmiTag(value);
-    return value;
-  }
-
-  Node* Int32ToParameter(SloppyTNode<Int32T> value, ParameterMode mode) {
-    return IntPtrToParameter(ChangeInt32ToIntPtr(value), mode);
-  }
-
   TNode<Smi> ParameterToTagged(TNode<Smi> value) { return value; }
 
   TNode<Smi> ParameterToTagged(TNode<IntPtrT> value) { return SmiTag(value); }
@@ -666,11 +645,6 @@ class V8_EXPORT_PRIVATE CodeStubAssembler
   // TODO(v8:9708): remove once all uses are ported.
   Node* IntPtrOrSmiConstant(int value, ParameterMode mode);
 
-  bool IsIntPtrOrSmiConstantZero(TNode<Smi> test);
-  bool IsIntPtrOrSmiConstantZero(TNode<IntPtrT> test);
-  // TODO(v8:9708): remove once all uses are ported.
-  bool IsIntPtrOrSmiConstantZero(Node* test, ParameterMode mode);
-
   bool TryGetIntPtrOrSmiConstantValue(Node* maybe_constant, int* value,
                                       ParameterMode mode);
 
@@ -784,15 +758,6 @@ class V8_EXPORT_PRIVATE CodeStubAssembler
     }
   }
 
-  Node* WordOrSmiShl(Node* a, int shift, ParameterMode mode) {
-    if (mode == SMI_PARAMETERS) {
-      return SmiShl(CAST(a), shift);
-    } else {
-      DCHECK_EQ(INTPTR_PARAMETERS, mode);
-      return WordShl(a, shift);
-    }
-  }
-
   Node* WordOrSmiShr(Node* a, int shift, ParameterMode mode) {
     if (mode == SMI_PARAMETERS) {
       return SmiShr(CAST(a), shift);