Generate some intrinsics using our IR.

runtime/vm/flow_graph_compiler.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_FLOW_GRAPH_COMPILER_H_
 #define VM_FLOW_GRAPH_COMPILER_H_
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
 #include "vm/code_descriptors.h"
@@ skipping 43 matching lines @@
 
    private:
     ParallelMoveResolver* resolver_;
     Register reg_;
     bool spilled_;
   };
 
 
   bool IsScratchLocation(Location loc);
   intptr_t AllocateScratchRegister(Location::Kind kind,
-                                   intptr_t blocked,
+                                   uword blocked_mask,
                                    intptr_t first_free_register,
                                    intptr_t last_free_register,
                                    bool* spilled);
 
   void SpillScratch(Register reg);
   void RestoreScratch(Register reg);
   void SpillFpuScratch(FpuRegister reg);
   void RestoreFpuScratch(FpuRegister reg);
 
   // friend class ScratchXmmRegisterScope;
@@ skipping 14 matching lines @@
 
   // Verify the move list before performing moves.
   void Verify();
 
   // Helpers for non-trivial source-destination combinations that cannot
   // be handled by a single instruction.
   void MoveMemoryToMemory(const Address& dst, const Address& src);
   void StoreObject(const Address& dst, const Object& obj);
   void Exchange(Register reg, const Address& mem);
   void Exchange(const Address& mem1, const Address& mem2);
-  void Exchange(Register reg, intptr_t stack_offset);
-  void Exchange(intptr_t stack_offset1, intptr_t stack_offset2);
+  void Exchange(Register reg, Register base_reg, intptr_t stack_offset);
+  void Exchange(Register base_reg1,
+                intptr_t stack_offset1,
+                Register base_reg2,
+                intptr_t stack_offset2);
 
   FlowGraphCompiler* compiler_;
 
   // List of moves not yet resolved.
   GrowableArray<MoveOperands*> moves_;
 };
 
 
 // Used for describing a deoptimization point after call (lazy deoptimization).
 // For deoptimization before instruction use class CompilerDeoptInfoWithStub.
@@ skipping 171 matching lines @@
   }
   BlockEntryInstr* current_block() const { return current_block_; }
   void set_current_block(BlockEntryInstr* value) {
     current_block_ = value;
   }
   static bool CanOptimize();
   bool CanOptimizeFunction() const;
   bool CanOSRFunction() const;
   bool is_optimizing() const { return is_optimizing_; }
 
+  void EnterIntrinsicMode();
+  void ExitIntrinsicMode();
+  bool intrinsic_mode() const { return intrinsic_mode_; }
+
   bool ForceSlowPathForStackOverflow() const;
 
   const GrowableArray<BlockInfo*>& block_info() const { return block_info_; }
   ParallelMoveResolver* parallel_move_resolver() {
     return &parallel_move_resolver_;
   }
 
   // Constructor is lighweight, major initialization work should occur here.
   // This makes it easier to measure time spent in the compiler.
   void InitCompiler();
@@ skipping 308 matching lines @@
   DescriptorList* pc_descriptors_list_;
   StackmapTableBuilder* stackmap_table_builder_;
   GrowableArray<BlockInfo*> block_info_;
   GrowableArray<CompilerDeoptInfo*> deopt_infos_;
   GrowableArray<SlowPathCode*> slow_path_code_;
   // Stores: [code offset, function, null(code)].
   const GrowableObjectArray& static_calls_target_table_;
   const bool is_optimizing_;
   // Set to true if optimized code has IC calls.
   bool may_reoptimize_;
+  // True while emitting intrinsic code.
+  bool intrinsic_mode_;
+  Label intrinsic_deopt_label_;
 
   const Class& double_class_;
   const Class& mint_class_;
   const Class& float32x4_class_;
   const Class& float64x2_class_;
   const Class& int32x4_class_;
   const Class& list_class_;
 
   ParallelMoveResolver parallel_move_resolver_;
 
   // Currently instructions generate deopt stubs internally by
   // calling AddDeoptStub.  To communicate deoptimization environment
   // that should be used when deoptimizing we store it in this variable.
   // In future AddDeoptStub should be moved out of the instruction template.
   Environment* pending_deoptimization_env_;
 
   intptr_t entry_patch_pc_offset_;
   intptr_t patch_code_pc_offset_;
   intptr_t lazy_deopt_pc_offset_;
 
   ZoneGrowableArray<const ICData*>* deopt_id_to_ic_data_;
 
   DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_COMPILER_H_