VM: Remove more duplicate code between AOT and JIT compiler.

runtime/vm/aot_optimizer.h

Index: runtime/vm/aot_optimizer.h
diff --git a/runtime/vm/aot_optimizer.h b/runtime/vm/aot_optimizer.h
index a497b07b999bd5fb2eb25dcaa6d3d4ca5c70d8bd..972a71cf6e08b90091be204ee025e6cf96757b4a 100644
--- a/runtime/vm/aot_optimizer.h
+++ b/runtime/vm/aot_optimizer.h
@@ -41,11 +41,6 @@ class AotOptimizer : public FlowGraphVisitor {
   // Use propagated class ids to optimize, replace or eliminate instructions.
   void ApplyClassIds();
 
-  // Optimize (a << b) & c pattern: if c is a positive Smi or zero, then the
-  // shift can be a truncating Smi shift-left and result is always Smi.
-  // Merge instructions (only per basic-block).
-  void TryOptimizePatterns();
-
   void ReplaceArrayBoundChecks();
 
   virtual void VisitStaticCall(StaticCallInstr* instr);
@@ -115,12 +110,6 @@ class AotOptimizer : public FlowGraphVisitor {
   bool InstanceCallNeedsClassCheck(InstanceCallInstr* call,
                                    RawFunction::Kind kind) const;
 
-  bool InlineFloat32x4Getter(InstanceCallInstr* call,
-                             MethodRecognizer::Kind getter);
-  bool InlineFloat64x2Getter(InstanceCallInstr* call,
-                             MethodRecognizer::Kind getter);
-  bool InlineInt32x4Getter(InstanceCallInstr* call,
-                            MethodRecognizer::Kind getter);
   bool InlineFloat32x4BinaryOp(InstanceCallInstr* call,
                                Token::Kind op_kind);
   bool InlineInt32x4BinaryOp(InstanceCallInstr* call,
@@ -136,14 +125,6 @@ class AotOptimizer : public FlowGraphVisitor {
   void ReplaceWithMathCFunction(InstanceCallInstr* call,
                                 MethodRecognizer::Kind recognized_kind);
 
-  void OptimizeLeftShiftBitAndSmiOp(Definition* bit_and_instr,
-                                    Definition* left_instr,
-                                    Definition* right_instr);
-  void TryMergeTruncDivMod(GrowableArray<BinarySmiOpInstr*>* merge_candidates);
-  void TryMergeMathUnary(GrowableArray<MathUnaryInstr*>* merge_candidates);
-
-  void AppendExtractNthOutputForMerged(Definition* instr, intptr_t ix,
-                                       Representation rep, intptr_t cid);
   bool TryStringLengthOneEquality(InstanceCallInstr* call, Token::Kind op_kind);
 
   RawField* GetField(intptr_t class_id, const String& field_name);