[llvm-dev] Should ValueTracking::GetUnderlyingObject stop on Alloca instructions rather than calling SimplifyInstruction?

[Craig Topper via llvm-dev]

Ping

~Craig

On Fri, Apr 7, 2017 at 1:25 PM, Craig Topper <craig.topper at gmail.com> wrote:

> I notice that GetUnderlyingObject has a few checks, but alloca isn't one
> of them. Then it fall backs to SimplifyInstruction which doesn't know about
> alloca so falls back to just trying to constant fold it. This seems a
> little silly since I assume alloca can't be constant folded. Should we just
> detect this early in GetUnderlyingObject and stop?
>
> ~Craig
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20170412/2108dc77/attachment.html>