Handle array construction in native code (x64 version)

src/x64/macro-assembler-x64.cc

 // 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
@@ skipping 501 matching lines @@
 void MacroAssembler::JumpIfSmiEqualsConstant(Register src,
                                              int constant,
                                              Label* on_equals) {
   if (Smi::IsValid(constant)) {
     Condition are_equal = CheckSmiEqualsConstant(src, constant);
     j(are_equal, on_equals);
   }
 }
 
 
+void MacroAssembler::JumpIfSmiGreaterEqualsConstant(Register src,
+                                                    int constant,
+                                                    Label* on_greater_equals) {
+  if (Smi::IsValid(constant)) {
+    Condition are_greater_equal = CheckSmiGreaterEqualsConstant(src, constant);
+    j(are_greater_equal, on_greater_equals);
+  } else if (constant < Smi::kMinValue){
+    jmp(on_greater_equals);
+  }
+}
+
+
 void MacroAssembler::JumpIfNotValidSmiValue(Register src, Label* on_invalid) {
   Condition is_valid = CheckInteger32ValidSmiValue(src);
   j(ReverseCondition(is_valid), on_invalid);
 }
 
 
 
 void MacroAssembler::JumpIfNotBothSmi(Register src1,
                                       Register src2,
                                       Label* on_not_both_smi) {
@@ skipping 63 matching lines @@
   if (Smi::IsValid(constant)) {
     cmpl(src, Immediate(Smi::FromInt(constant)));
     return zero;
   }
   // Can't be equal.
   UNREACHABLE();
   return no_condition;
 }
 
 
+Condition MacroAssembler::CheckSmiGreaterEqualsConstant(Register src,
+                                                        int constant) {
+  if (constant == 0) {
+    testl(src, Immediate(static_cast<uint32_t>(0x80000000u)));
+    return positive;
+  }
+  if (Smi::IsValid(constant)) {
+    cmpl(src, Immediate(Smi::FromInt(constant)));
+    return greater_equal;
+  }
+  // Can't be equal.
+  UNREACHABLE();
+  return no_condition;
+}
+
+
 Condition MacroAssembler::CheckInteger32ValidSmiValue(Register src) {
   // A 32-bit integer value can be converted to a smi if it is in the
   // range [-2^30 .. 2^30-1]. That is equivalent to having its 32-bit
   // representation have bits 30 and 31 be equal.
   cmpl(src, Immediate(0xC0000000u));
   return positive;
 }
 
 
 void MacroAssembler::SmiNeg(Register dst,
@@ skipping 1527 matching lines @@
   // Indicate that code has changed.
   CPU::FlushICache(address_, size_);
 
   // Check that the code was patched as expected.
   ASSERT(masm_.pc_ == address_ + size_);
   ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap);
 }
 
 
 } }  // namespace v8::internal