Allow uint32 value on optimized frames if they are consumed by safe operations.

src/x64/macro-assembler-x64.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 299 matching lines @@
 
   // Leave the current exit frame. Expects/provides the return value in
   // register rax (untouched).
   void LeaveApiExitFrame();
 
   // Push and pop the registers that can hold pointers.
   void PushSafepointRegisters() { Pushad(); }
   void PopSafepointRegisters() { Popad(); }
   // Store the value in register src in the safepoint register stack
   // slot for register dst.
+  void StoreToSafepointRegisterSlot(Register dst, const Immediate& imm);
   void StoreToSafepointRegisterSlot(Register dst, Register src);
   void LoadFromSafepointRegisterSlot(Register dst, Register src);
 
   void InitializeRootRegister() {
     ExternalReference roots_array_start =
         ExternalReference::roots_array_start(isolate());
     movq(kRootRegister, roots_array_start);
     addq(kRootRegister, Immediate(kRootRegisterBias));
   }
 
@@ skipping 607 matching lines @@
   // jcc instructions (je, ja, jae, jb, jbe, je, and jz).
   void FCmp();
 
   void ClampUint8(Register reg);
 
   void ClampDoubleToUint8(XMMRegister input_reg,
                           XMMRegister temp_xmm_reg,
                           Register result_reg,
                           Register temp_reg);
 
+  void LoadUint32(XMMRegister dst, Register src, XMMRegister scratch);
+
   void LoadInstanceDescriptors(Register map, Register descriptors);
 
   // Abort execution if argument is not a number. Used in debug code.
   void AbortIfNotNumber(Register object);
 
   // Abort execution if argument is a smi. Used in debug code.
   void AbortIfSmi(Register object);
 
   // Abort execution if argument is not a smi. Used in debug code.
   void AbortIfNotSmi(Register object);
@@ skipping 525 matching lines @@
     masm->popfd();                                                        \
   }                                                                       \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_MACRO_ASSEMBLER_X64_H_