Chris Lattner ec2b25406c Fix an obscure bug in PointerUnion that would bite PointerUnion3/4. Basically, ...

when checking isNull(), we'd pick off the sentinel bit for the outer 
PointerUnion, but would not recursively convert the inner pointerunion to bool,
so if *its* sentinel bit is set, isNull() would incorrectly return false.

No testcase, because someone hit this when they were trying to refactor code
to use PointerUnion3, but they since found a better solution.

llvm-svn: 137428

2011-08-12 04:31:38 +00:00

..

llvm

Fix an obscure bug in PointerUnion that would bite PointerUnion3/4. Basically,

2011-08-12 04:31:38 +00:00

llvm-c

Add missing file.

2011-08-09 22:19:52 +00:00