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Fix PR1329.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36016 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jeff Cohen
2007-04-14 21:50:21 +00:00
parent bbb2a7a2cf
commit ac58a16f85
2 changed files with 32 additions and 0 deletions
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lib/Support/SmallPtrSet.cpp
+28
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@@ -141,5 +141,33 @@ void SmallPtrSetImpl::Grow() {
}
delete [] OldBuckets;
NumTombstones = 0;
}
}
SmallPtrSetImpl::SmallPtrSetImpl(const SmallPtrSetImpl& that) {
NumElements = that.NumElements;
NumTombstones = 0;
if (that.isSmall()) {
CurArraySize = that.CurArraySize;
CurArray = &SmallArray[0];
memcpy(CurArray, that.CurArray, sizeof(void*)*CurArraySize);
} else {
CurArraySize = that.NumElements < 64 ? 128 : that.NumElements*2;
CurArray = new void*[CurArraySize+1];
memset(CurArray, -1, CurArraySize*sizeof(void*));
// The end pointer, always valid, is set to a valid element to help the
// iterator.
CurArray[CurArraySize] = 0;
// Copy over all valid entries.
for (void **BucketPtr = that.CurArray, **E = that.CurArray+CurArraySize;
BucketPtr != E; ++BucketPtr) {
// Copy over the element if it is valid.
void *Elt = *BucketPtr;
if (Elt != getTombstoneMarker() && Elt != getEmptyMarker())
*const_cast<void**>(FindBucketFor(Elt)) = Elt;
}
}
}