[stubs] ToNumberStub --> ToNumber builtin.

src/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 153 matching lines @@
   {
     // Check if all parameters done.
     __ Subu(a0, a0, Operand(1));
     __ Branch(&done_loop, lt, a0, Operand(zero_reg));
 
     // Load the next parameter tagged value into a2.
     __ Lsa(at, sp, a0, kPointerSizeLog2);
     __ lw(a2, MemOperand(at));
 
     // Load the double value of the parameter into f2, maybe converting the
-    // parameter to a number first using the ToNumberStub if necessary.
+    // parameter to a number first using the ToNumber builtin if necessary.
     Label convert, convert_smi, convert_number, done_convert;
     __ bind(&convert);
     __ JumpIfSmi(a2, &convert_smi);
     __ lw(t0, FieldMemOperand(a2, HeapObject::kMapOffset));
     __ JumpIfRoot(t0, Heap::kHeapNumberMapRootIndex, &convert_number);
     {
-      // Parameter is not a Number, use the ToNumberStub to convert it.
+      // Parameter is not a Number, use the ToNumber builtin to convert it.
       FrameScope scope(masm, StackFrame::INTERNAL);
       __ SmiTag(a0);
       __ SmiTag(a3);
       __ Push(a0, a1, a3);
       __ mov(a0, a2);
-      ToNumberStub stub(masm->isolate());
-      __ CallStub(&stub);
+      __ Call(masm->isolate()->builtins()->ToNumber(), RelocInfo::CODE_TARGET);
       __ mov(a2, v0);
       __ Pop(a0, a1, a3);
       {
         // Restore the double accumulator value (f0).
         Label restore_smi, done_restore;
         __ JumpIfSmi(a1, &restore_smi);
         __ ldc1(f0, FieldMemOperand(a1, HeapNumber::kValueOffset));
         __ jmp(&done_restore);
         __ bind(&restore_smi);
         __ SmiToDoubleFPURegister(a1, f0, t0);
@@ skipping 59 matching lines @@
   Label no_arguments;
   {
     __ Branch(USE_DELAY_SLOT, &no_arguments, eq, a0, Operand(zero_reg));
     __ Subu(a0, a0, Operand(1));
     __ Lsa(sp, sp, a0, kPointerSizeLog2);
     __ lw(a0, MemOperand(sp));
     __ Drop(2);
   }
 
   // 2a. Convert first argument to number.
-  ToNumberStub stub(masm->isolate());
-  __ TailCallStub(&stub);
+  __ Jump(masm->isolate()->builtins()->ToNumber(), RelocInfo::CODE_TARGET);
 
   // 2b. No arguments, return +0.
   __ bind(&no_arguments);
   __ Move(v0, Smi::FromInt(0));
   __ DropAndRet(1);
 }
 
 
 // static
 void Builtins::Generate_NumberConstructor_ConstructStub(MacroAssembler* masm) {
@@ skipping 27 matching lines @@
 
   // 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));
     {
       FrameScope scope(masm, StackFrame::INTERNAL);
       __ Push(a1, a3);
-      ToNumberStub stub(masm->isolate());
-      __ CallStub(&stub);
+      __ Call(masm->isolate()->builtins()->ToNumber(), RelocInfo::CODE_TARGET);
       __ Move(a0, v0);
       __ Pop(a1, a3);
     }
     __ bind(&done_convert);
   }
 
   // 4. Check if new target and constructor differ.
   Label new_object;
   __ Branch(&new_object, ne, a1, Operand(a3));
 
@@ skipping 2447 matching lines @@
   __ And(at, a2, Operand(String::kContainsCachedArrayIndexMask));
   __ Branch(&runtime, ne, at, Operand(zero_reg));
   __ IndexFromHash(a2, v0);
   __ Ret();
 
   __ bind(&runtime);
   __ Push(a0);  // Push argument.
   __ TailCallRuntime(Runtime::kStringToNumber);
 }
 
+// static
+void Builtins::Generate_ToNumber(MacroAssembler* masm) {
+  // The ToNumber stub takes one argument in a0.
+  Label not_smi;
+  __ JumpIfNotSmi(a0, &not_smi);
+  __ Ret(USE_DELAY_SLOT);
+  __ mov(v0, a0);
+  __ bind(&not_smi);
+
+  Label not_heap_number;
+  __ GetObjectType(a0, a1, a1);
+  // a0: receiver
+  // a1: receiver instance type
+  __ Branch(&not_heap_number, ne, a1, Operand(HEAP_NUMBER_TYPE));
+  __ Ret(USE_DELAY_SLOT);
+  __ mov(v0, a0);
+  __ bind(&not_heap_number);
+
+  __ Jump(masm->isolate()->builtins()->NonNumberToNumber(),
+          RelocInfo::CODE_TARGET);
+}
+
+// static
+void Builtins::Generate_NonNumberToNumber(MacroAssembler* masm) {
+  // The NonNumberToNumber stub takes on argument in a0.
+  __ AssertNotNumber(a0);
+
+  Label not_string;
+  __ GetObjectType(a0, a1, a1);
+  // a0: receiver
+  // a1: receiver instance type
+  __ Branch(&not_string, hs, a1, Operand(FIRST_NONSTRING_TYPE));
+  __ Jump(masm->isolate()->builtins()->StringToNumber(),
+          RelocInfo::CODE_TARGET);
+  __ bind(&not_string);
+
+  Label not_oddball;
+  __ Branch(&not_oddball, ne, a1, Operand(ODDBALL_TYPE));
+  __ Ret(USE_DELAY_SLOT);
+  __ lw(v0, FieldMemOperand(a0, Oddball::kToNumberOffset));  // In delay slot.
+  __ bind(&not_oddball);
+
+  __ Push(a0);  // Push argument.
+  __ TailCallRuntime(Runtime::kToNumber);
+}
+
 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)
   // -----------------------------------
 
   Label invoke, dont_adapt_arguments, stack_overflow;
@@ skipping 118 matching lines @@
   }
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS