[llvm-bugs] [Bug 49227] Merge d22140687500f90830fe416d9c1e317f7c4535d5 into 12.0.0

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=49227

James Henderson <jh7370.2008 at my.bristol.ac.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|FIXED                       |---
             Status|RESOLVED                    |REOPENED
                 CC|                            |jh7370.2008 at my.bristol.ac.u
                   |                            |k

--- Comment #2 from James Henderson <jh7370.2008 at my.bristol.ac.uk> ---
We are seeing a failure of the test that is part of the commit on our version
of the release branch, following this cherry-pick. The failure is almost
certainly due to a missing prerequisite lit change. The lit change in question
I think we'd need is
https://github.com/llvm/llvm-project/commit/42a21778f61cdc8462ce2cfb6ad7bc1992b2063c,
although there are some known issues with that change (see
https://reviews.llvm.org/D95246), so it would probably be safer to make a
different change to the test.

I am not currently set up to work with the release branch, and am not in a good
place to provide the new fix instead. However, I can describe it here.
Essentially, all that needs to happen is one of the two following:

1) Delete the -DMSG=%errc_ENOENT bits from lines 36 and 38 of the test, and
replace the `[[MSG]]` on lines 40 and 46 with `{{[Nn]))o such file or
directory`.

2) Replace the `%errc_ENOENT` on lines 36 and 38 with `{{[Nn]))o such file or
directory`, possibly with additional quoting to avoid any shell character
issues, I'm not sure.

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