Rollback trunk to 3.21.16.2

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
diff --git a/src/x64/lithium-x64.h b/src/x64/lithium-x64.h
index e3faa89ccfde55323ddc26cabe2090f43eabd343..b3d08c8a4c08f9f07996439a63660840e9015a34 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -114,6 +114,7 @@ class LCodeGen;
   V(IsObjectAndBranch)                          \
   V(IsStringAndBranch)                          \
   V(IsSmiAndBranch)                             \
+  V(IsNumberAndBranch)                          \
   V(IsUndetectableAndBranch)                    \
   V(Label)                                      \
   V(LazyBailout)                                \
@@ -882,6 +883,19 @@ class LIsObjectAndBranch V8_FINAL : public LControlInstruction<1, 0> {
 };
 
 
+class LIsNumberAndBranch V8_FINAL : public LControlInstruction<1, 0> {
+ public:
+  explicit LIsNumberAndBranch(LOperand* value) {
+    inputs_[0] = value;
+  }
+
+  LOperand* value() { return inputs_[0]; }
+
+  DECLARE_CONCRETE_INSTRUCTION(IsNumberAndBranch, "is-number-and-branch")
+  DECLARE_HYDROGEN_ACCESSOR(IsNumberAndBranch)
+};
+
+
 class LIsStringAndBranch V8_FINAL : public LControlInstruction<1, 1> {
  public:
   explicit LIsStringAndBranch(LOperand* value, LOperand* temp) {
@@ -2035,7 +2049,7 @@ class LTaggedToI V8_FINAL : public LTemplateInstruction<1, 1, 1> {
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(TaggedToI, "tagged-to-i")
-  DECLARE_HYDROGEN_ACCESSOR(Change)
+  DECLARE_HYDROGEN_ACCESSOR(UnaryOperation)
 
   bool truncating() { return hydrogen()->CanTruncateToInt32(); }
 };
@@ -2687,7 +2701,7 @@ class LChunkBuilder V8_FINAL BASE_EMBEDDED {
   LInstruction* DoArithmeticD(Token::Value op,
                               HArithmeticBinaryOperation* instr);
   LInstruction* DoArithmeticT(Token::Value op,
-                              HBinaryOperation* instr);
+                              HArithmeticBinaryOperation* instr);
 
   LPlatformChunk* chunk_;
   CompilationInfo* info_;