PPC: [builtins] Migrate Number constructor similar to String constructor.

src/ppc/macro-assembler-ppc.cc

Index: src/ppc/macro-assembler-ppc.cc
diff --git a/src/ppc/macro-assembler-ppc.cc b/src/ppc/macro-assembler-ppc.cc
index 783d5a4b169f30ec8edf061a74d360b32453fa78..ebae52a90d877523c49f3ceee10e6134b6ae1162 100644
--- a/src/ppc/macro-assembler-ppc.cc
+++ b/src/ppc/macro-assembler-ppc.cc
@@ -2767,6 +2767,28 @@ void MacroAssembler::AllocateHeapNumberWithValue(
 }
 
 
+void MacroAssembler::AllocateJSValue(Register result, Register constructor,
+                                     Register value, Register scratch1,
+                                     Register scratch2, Label* gc_required) {
+  DCHECK(!result.is(constructor));
+  DCHECK(!result.is(scratch1));
+  DCHECK(!result.is(scratch2));
+  DCHECK(!result.is(value));
+
+  // Allocate JSValue in new space.
+  Allocate(JSValue::kSize, result, scratch1, scratch2, gc_required, TAG_OBJECT);
+
+  // Initialize the JSValue.
+  LoadGlobalFunctionInitialMap(constructor, scratch1, scratch2);
+  StoreP(scratch1, FieldMemOperand(result, HeapObject::kMapOffset), r0);
+  LoadRoot(scratch1, Heap::kEmptyFixedArrayRootIndex);
+  StoreP(scratch1, FieldMemOperand(result, JSObject::kPropertiesOffset), r0);
+  StoreP(scratch1, FieldMemOperand(result, JSObject::kElementsOffset), r0);
+  StoreP(value, FieldMemOperand(result, JSValue::kValueOffset), r0);
+  STATIC_ASSERT(JSValue::kSize == 4 * kPointerSize);
+}
+
+
 void MacroAssembler::CopyBytes(Register src, Register dst, Register length,
                                Register scratch) {
   Label align_loop, aligned, word_loop, byte_loop, byte_loop_1, done;