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eliminate conditional when calculating object size

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This commit is contained in:
Joel Dice 2007-07-01 15:47:26 -06:00
parent 38cea04322
commit f698d347ac
1 changed files with 8 additions and 17 deletions
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25
src/vm.cpp
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@ -492,14 +492,10 @@ collect(Machine* m, Heap::CollectionType type)
p = m->heap->follow(mask(p));
object class_ = m->heap->follow(objectClass(t, p));
unsigned n = divide(classFixedSize(t, class_), BytesPerWord);
if (classArrayElementSize(t, class_)) {
n += divide(classArrayElementSize(t, class_)
* cast<uint32_t>(p, classFixedSize(t, class_) - 4),
BytesPerWord);
}
return n;
return divide(classFixedSize(t, class_), BytesPerWord)
+ divide(classArrayElementSize(t, class_)
* cast<uint32_t>(p, classFixedSize(t, class_) - 4),
BytesPerWord);
}
virtual void walk(void* p, Heap::Walker* w) {
@ -764,15 +760,10 @@ objectSize(Thread* t, object o)
{
object class_ = objectClass(t, o);
unsigned n = divide(classFixedSize(t, class_), BytesPerWord);
if (classArrayElementSize(t, class_)) {
n += divide(classArrayElementSize(t, class_)
* cast<uint32_t>(o, classFixedSize(t, class_) - 4),
BytesPerWord);
}
return n;
return divide(classFixedSize(t, class_), BytesPerWord)
+ divide(classArrayElementSize(t, class_)
* cast<uint32_t>(o, classFixedSize(t, class_) - 4),
BytesPerWord);
}
object