Found by Hal Finkel in the review of AttributeSets. http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-
20150504/275058.html
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236662
91177308-0d34-0410-b5e6-
96231b3b80d8
if (!pImpl) return AttributeSet();
if (!Attrs.pImpl) return *this;
-#ifndef NDEBUG
// FIXME it is not obvious how this should work for alignment.
// For now, say we can't pass in alignment, which no current use does.
assert(!Attrs.hasAttribute(Index, Attribute::Alignment) &&
"Attempt to change alignment!");
-#endif
// Add the attribute slots before the one we're trying to add.
SmallVector<AttributeSet, 4> AttrSet;