Handle array construction in native code (x64 version)

src/x64/macro-assembler-x64.h

 // Copyright 2009 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
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   Condition CheckNotBothSmi(Register first, Register second);
 
   // Is the value the minimum smi value (since we are using
   // two's complement numbers, negating the value is known to yield
   // a non-smi value).
   Condition CheckIsMinSmi(Register src);
 
   // Check whether a tagged smi is equal to a constant.
   Condition CheckSmiEqualsConstant(Register src, int constant);
 
+  // Check whether a tagged smi is greater than or equal to a constant.
+  Condition CheckSmiGreaterEqualsConstant(Register src, int constant);
+
   // Checks whether an 32-bit integer value is a valid for conversion
   // to a smi.
   Condition CheckInteger32ValidSmiValue(Register src);
 
   // Test-and-jump functions. Typically combines a check function
   // above with a conditional jump.
 
   // Jump if the value cannot be represented by a smi.
   void JumpIfNotValidSmiValue(Register src, Label* on_invalid);
 
   // Jump to label if the value is a tagged smi.
   void JumpIfSmi(Register src, Label* on_smi);
 
   // Jump to label if the value is not a tagged smi.
   void JumpIfNotSmi(Register src, Label* on_not_smi);
 
   // Jump to label if the value is not a positive tagged smi.
   void JumpIfNotPositiveSmi(Register src, Label* on_not_smi);
 
   // Jump to label if the value is a tagged smi with value equal
   // to the constant.
   void JumpIfSmiEqualsConstant(Register src, int constant, Label* on_equals);
 
+  // Jump to label if the value is a tagged smi with value greater than or equal
+  // to the constant.
+  void JumpIfSmiGreaterEqualsConstant(Register src,
+                                      int constant,
+                                      Label* on_equals);
+
   // Jump if either or both register are not smi values.
   void JumpIfNotBothSmi(Register src1, Register src2, Label* on_not_both_smi);
 
   // Operations on tagged smi values.
 
   // Smis represent a subset of integers. The subset is always equivalent to
   // a two's complement interpretation of a fixed number of bits.
 
   // Optimistically adds an integer constant to a supposed smi.
   // If the src is not a smi, or the result is not a smi, jump to
@@ skipping 438 matching lines @@
   }                                                                       \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_MACRO_ASSEMBLER_X64_H_