Add Smi::Zero and replace all Smi::FromInt(0) calls

test/cctest/test-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 158 matching lines @@
       Assembler::kMinimalBufferSize, &actual_size, true));
   CHECK(buffer);
   Isolate* isolate = CcTest::i_isolate();
   HandleScope handles(isolate);
   MacroAssembler assembler(isolate, buffer, static_cast<int>(actual_size),
                            v8::internal::CodeObjectRequired::kYes);
   MacroAssembler* masm = &assembler;  // Create a pointer for the __ macro.
   EntryCode(masm);
   Label exit;
 
-  TestMoveSmi(masm, &exit, 1, Smi::FromInt(0));
+  TestMoveSmi(masm, &exit, 1, Smi::kZero);
   TestMoveSmi(masm, &exit, 2, Smi::FromInt(127));
   TestMoveSmi(masm, &exit, 3, Smi::FromInt(128));
   TestMoveSmi(masm, &exit, 4, Smi::FromInt(255));
   TestMoveSmi(masm, &exit, 5, Smi::FromInt(256));
   TestMoveSmi(masm, &exit, 6, Smi::FromInt(Smi::kMaxValue));
   TestMoveSmi(masm, &exit, 7, Smi::FromInt(-1));
   TestMoveSmi(masm, &exit, 8, Smi::FromInt(-128));
   TestMoveSmi(masm, &exit, 9, Smi::FromInt(-129));
   TestMoveSmi(masm, &exit, 10, Smi::FromInt(-256));
   TestMoveSmi(masm, &exit, 11, Smi::FromInt(-257));
@@ skipping 118 matching lines @@
   MacroAssembler assembler(isolate, buffer, static_cast<int>(actual_size),
                            v8::internal::CodeObjectRequired::kYes);
 
   MacroAssembler* masm = &assembler;
   EntryCode(masm);
   Label exit;
 
   __ movq(rax, Immediate(1));  // Test number.
   __ movl(rcx, Immediate(0));
   __ Integer32ToSmi(rcx, rcx);
-  __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(0)));
+  __ Set(rdx, reinterpret_cast<intptr_t>(Smi::kZero));
   __ cmpq(rcx, rdx);
   __ j(not_equal, &exit);
 
   __ movq(rax, Immediate(2));  // Test number.
   __ movl(rcx, Immediate(1024));
   __ Integer32ToSmi(rcx, rcx);
   __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(1024)));
   __ cmpq(rcx, rdx);
   __ j(not_equal, &exit);
 
@@ skipping 16 matching lines @@
   __ Integer32ToSmi(rcx, rcx);
   __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(Smi::kMinValue)));
   __ cmpq(rcx, rdx);
   __ j(not_equal, &exit);
 
   // Different target register.
 
   __ movq(rax, Immediate(6));  // Test number.
   __ movl(rcx, Immediate(0));
   __ Integer32ToSmi(r8, rcx);
-  __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(0)));
+  __ Set(rdx, reinterpret_cast<intptr_t>(Smi::kZero));
   __ cmpq(r8, rdx);
   __ j(not_equal, &exit);
 
   __ movq(rax, Immediate(7));  // Test number.
   __ movl(rcx, Immediate(1024));
   __ Integer32ToSmi(r8, rcx);
   __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(1024)));
   __ cmpq(r8, rdx);
   __ j(not_equal, &exit);
 
@@ skipping 2530 matching lines @@
   __ ret(0);
 
   CodeDesc desc;
   masm->GetCode(&desc);
   // Call the function from C++.
   int result = FUNCTION_CAST<F0>(buffer)();
   CHECK_EQ(0, result);
 }
 
 #undef __