[llvm] r301885 - Revert r301880

[Davide Italiano via llvm-commits]

On Mon, May 1, 2017 at 11:26 PM, George Burgess IV
<george.burgess.iv at gmail.com> wrote:
> yeah, here's the first failure i have with a helpful stack trace:
> http://lab.llvm.org:8011/builders/clang-x86_64-linux-selfhost-modules-2/builds/6968/steps/compile.llvm.stage2/logs/stdio
> (grep for "#0 0x0000000001c662fd")
>
> the simplest way I found to repro it on my machine is `ninja
> check-sanitizer` on a release build; clang should ICE on a file or two.
>

I see, that was why I wasn't able to reproduce in my setup (I tried
your patch with ninja check-llvm/check-clang but without sanitizers).
I'll try to reduce a testcase.

-- 
Davide

"There are no solved problems; there are only problems that are more
or less solved" -- Henri Poincare