Fixed power-of-2 predicates, excluding 0.

src/gdb-jit.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 234 matching lines @@
   };
 
   MachOSection(const char* name,
                const char* segment,
                uintptr_t align,
                uint32_t flags)
     : name_(name),
       segment_(segment),
       align_(align),
       flags_(flags) {
-    ASSERT(IsPowerOf2(align));
     if (align_ != 0) {
+      ASSERT(IsPowerOf2(align));
       align_ = WhichPowerOf2(align_);
     }
   }
 
   virtual ~MachOSection() { }
 
   virtual void PopulateHeader(Writer::Slot<Header> header) {
     header->addr = 0;
     header->size = 0;
     header->offset = 0;
@@ skipping 1924 matching lines @@
   LockGuard<Mutex> lock_guard(mutex.Pointer());
   ASSERT(!IsLineInfoTagged(line_info));
   HashMap::Entry* e = GetEntries()->Lookup(code, HashForCodeObject(code), true);
   ASSERT(e->value == NULL);
   e->value = TagLineInfo(line_info);
 }
 
 
 } }  // namespace v8::internal
 #endif