PPC: [stubs] Split ToNumberStub into reusable subparts.

src/ppc/macro-assembler-ppc.cc

 // Copyright 2014 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.
 
 #include <assert.h>  // For assert
 #include <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/base/bits.h"
@@ skipping 2891 matching lines @@
 }
 
 
 void MacroAssembler::JumpIfEitherSmi(Register reg1, Register reg2,
                                      Label* on_either_smi) {
   STATIC_ASSERT(kSmiTag == 0);
   JumpIfSmi(reg1, on_either_smi);
   JumpIfSmi(reg2, on_either_smi);
 }
 
+void MacroAssembler::AssertNotNumber(Register object) {
+  if (emit_debug_code()) {
+    STATIC_ASSERT(kSmiTag == 0);
+    TestIfSmi(object, r0);
+    Check(ne, kOperandIsANumber, cr0);
+    push(object);
+    CompareObjectType(object, object, object, HEAP_NUMBER_TYPE);
+    pop(object);
+    Check(ne, kOperandIsANumber);
+  }
+}
 
 void MacroAssembler::AssertNotSmi(Register object) {
   if (emit_debug_code()) {
     STATIC_ASSERT(kSmiTag == 0);
     TestIfSmi(object, r0);
     Check(ne, kOperandIsASmi, cr0);
   }
 }
 
 
@@ skipping 1708 matching lines @@
   }
   if (mag.shift > 0) srawi(result, result, mag.shift);
   ExtractBit(r0, dividend, 31);
   add(result, result, r0);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC