PPC: Fix AssertFunction.

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 2568 matching lines @@
     Check(le, kOperandIsNotAName);
   }
 }
 
 
 void MacroAssembler::AssertFunction(Register object) {
   if (emit_debug_code()) {
     STATIC_ASSERT(kSmiTag == 0);
     TestIfSmi(object, r0);
     Check(ne, kOperandIsASmiAndNotAFunction, cr0);
-    CompareObjectType(object, r0, r0, JS_FUNCTION_TYPE);
+    push(object);
+    CompareObjectType(object, object, object, JS_FUNCTION_TYPE);
+    pop(object);
     Check(eq, kOperandIsNotAFunction);
   }
 }
 
 
 void MacroAssembler::AssertUndefinedOrAllocationSite(Register object,
                                                      Register scratch) {
   if (emit_debug_code()) {
     Label done_checking;
     AssertNotSmi(object);
@@ skipping 1754 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