[llvm-commits] [Review] GVN Patch

[Owen Anderson]

On Oct 19, 2012, at 3:22 PM, Bill Wendling <wendling at apple.com> wrote:

> Owen expressed doubt about that when I asked him because memdep uses caching and stuff. Owen, could you shed some light on what your concerns were?

My concern here is that MemDep performs caching, which would then be invalidated if the set of unreachable blocks changes.  Perhaps this  is not an issue, if we're already having to invalidate the cache in those circumstances already; it's been a long time since I looked at it.

--Owen
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