[PATCH] D24712: Replace 'isProvablyNonNull' with existing utility llvm::IsKnownNonNull.

[John McCall via cfe-commits]

rjmccall added a comment.

Oh.  One danger with invoking a generic LLVM routine is that they often expect a well-formed function, not something that is plausibly still being emitted.


https://reviews.llvm.org/D24712