[llvm] r196611 - Don't use isNullValue to evaluate ConstantExpr

[Duncan P. N. Exon Smith]

On 2013 Dec 7, at 02:01, Alp Toker <alp at nuanti.com> wrote:

> Thanks Duncan, also fixes PR17077.

It was fun to track down.  Frustrating that we were working in parallel on dups.

> Bill, could you pull this into 3.4?

+1, but I thought 3.4 was only accepting regressions against 3.3?

> I guess Apple clang has been shipping with this patch for some time

Nope.

> -- is there a public branch we could sift through

http://llvm.org/svn/llvm-project/llvm/trunk

> to see if there are any other patches good to upstream?
> 
> Alp.