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

src/builtins/mips/builtins-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_MIPS
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 248 matching lines @@
   }
 
   {
     // Drop all arguments including the receiver.
     __ Lsa(sp, sp, t0, kPointerSizeLog2);
     __ DropAndRet(1);
   }
 
   // 2b. No arguments, return +0.
   __ bind(&no_arguments);
-  __ Move(v0, Smi::FromInt(0));
+  __ Move(v0, Smi::kZero);
   __ DropAndRet(1);
 }
 
 // static
 void Builtins::Generate_NumberConstructor_ConstructStub(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- a0                     : number of arguments
   //  -- a1                     : constructor function
   //  -- a3                     : new target
   //  -- cp                     : context
   //  -- ra                     : return address
   //  -- sp[(argc - n - 1) * 4] : arg[n] (zero based)
   //  -- sp[argc * 4]           : receiver
   // -----------------------------------
 
   // 1. Make sure we operate in the context of the called function.
   __ lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset));
 
   // 2. Load the first argument into a0.
   {
     Label no_arguments, done;
     __ mov(t0, a0);  // Store argc in t0.
     __ Branch(USE_DELAY_SLOT, &no_arguments, eq, a0, Operand(zero_reg));
     __ Subu(t1, a0, Operand(1));  // In delay slot.
     __ Lsa(at, sp, t1, kPointerSizeLog2);
     __ lw(a0, MemOperand(at));
     __ jmp(&done);
     __ bind(&no_arguments);
-    __ Move(a0, Smi::FromInt(0));
+    __ Move(a0, Smi::kZero);
     __ bind(&done);
   }
 
   // 3. Make sure a0 is a number.
   {
     Label done_convert;
     __ JumpIfSmi(a0, &done_convert);
     __ GetObjectType(a0, a2, a2);
     __ Branch(&done_convert, eq, a2, Operand(HEAP_NUMBER_TYPE));
     {
@@ skipping 1009 matching lines @@
     // Unreachable code.
     __ break_(0xCC);
   }
 }
 
 void Builtins::Generate_InterpreterEnterBytecodeDispatch(MacroAssembler* masm) {
   // Set the return address to the correct point in the interpreter entry
   // trampoline.
   Smi* interpreter_entry_return_pc_offset(
       masm->isolate()->heap()->interpreter_entry_return_pc_offset());
-  DCHECK_NE(interpreter_entry_return_pc_offset, Smi::FromInt(0));
+  DCHECK_NE(interpreter_entry_return_pc_offset, Smi::kZero);
   __ li(t0, Operand(masm->isolate()->builtins()->InterpreterEntryTrampoline()));
   __ Addu(ra, t0, Operand(interpreter_entry_return_pc_offset->value() +
                           Code::kHeaderSize - kHeapObjectTag));
 
   // Initialize the dispatch table register.
   __ li(kInterpreterDispatchTableRegister,
         Operand(ExternalReference::interpreter_dispatch_table_address(
             masm->isolate())));
 
   // Get the bytecode array pointer from the frame.
@@ skipping 512 matching lines @@
   }
 
   {
     FrameScope scope(masm, StackFrame::INTERNAL);
     // Pass function as argument.
     __ push(a0);
     __ CallRuntime(Runtime::kCompileForOnStackReplacement);
   }
 
   // If the code object is null, just return to the caller.
-  __ Ret(eq, v0, Operand(Smi::FromInt(0)));
+  __ Ret(eq, v0, Operand(Smi::kZero));
 
   // Drop any potential handler frame that is be sitting on top of the actual
   // JavaScript frame. This is the case then OSR is triggered from bytecode.
   if (has_handler_frame) {
     __ LeaveFrame(StackFrame::STUB);
   }
 
   // Load deoptimization data from the code object.
   // <deopt_data> = <code>[#deoptimization_data_offset]
   __ lw(a1, MemOperand(v0, Code::kDeoptimizationDataOffset - kHeapObjectTag));
@@ skipping 961 matching lines @@
 }
 
 // static
 void Builtins::Generate_AllocateInNewSpace(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- a0 : requested object size (untagged)
   //  -- ra : return address
   // -----------------------------------
   __ SmiTag(a0);
   __ Push(a0);
-  __ Move(cp, Smi::FromInt(0));
+  __ Move(cp, Smi::kZero);
   __ TailCallRuntime(Runtime::kAllocateInNewSpace);
 }
 
 // static
 void Builtins::Generate_AllocateInOldSpace(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- a0 : requested object size (untagged)
   //  -- ra : return address
   // -----------------------------------
   __ SmiTag(a0);
   __ Move(a1, Smi::FromInt(AllocateTargetSpace::encode(OLD_SPACE)));
   __ Push(a0, a1);
-  __ Move(cp, Smi::FromInt(0));
+  __ Move(cp, Smi::kZero);
   __ TailCallRuntime(Runtime::kAllocateInTargetSpace);
 }
 
 // static
 void Builtins::Generate_Abort(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- a0 : message_id as Smi
   //  -- ra : return address
   // -----------------------------------
   __ Push(a0);
-  __ Move(cp, Smi::FromInt(0));
+  __ Move(cp, Smi::kZero);
   __ TailCallRuntime(Runtime::kAbort);
 }
 
 void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
   // State setup as expected by MacroAssembler::InvokePrologue.
   // ----------- S t a t e -------------
   //  -- a0: actual arguments count
   //  -- a1: function (passed through to callee)
   //  -- a2: expected arguments count
   //  -- a3: new target (passed through to callee)
@@ skipping 119 matching lines @@
     __ break_(0xCC);
   }
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS