[llvm-bugs] [Bug 50573] New: revert 54b64572407c8305c7bb8cc20c46a5e0c66b2979 and cherry pick to release/12.x

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=50573

            Bug ID: 50573
           Summary: revert 54b64572407c8305c7bb8cc20c46a5e0c66b2979 and
                    cherry pick to release/12.x
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Loop Optimizer
          Assignee: unassignedbugs at nondot.org
          Reporter: ndesaulniers at google.com
                CC: juneyoung.lee at sf.snu.ac.kr, llvm-bugs at lists.llvm.org,
                    natechancellor at gmail.com, nikita.ppv at gmail.com,
                    tstellar at redhat.com
            Blocks: 4068, 49317

Forked from https://bugs.llvm.org/show_bug.cgi?id=50440.

https://github.com/llvm/llvm-project/commit/54b64572407c8305c7bb8cc20c46a5e0c66b2979
is causing assertion failures for us when building the Linux kernel with PGO. 
Since it doesn't seem like we'll be able to fix-forward quickly, as per
https://llvm.org/docs/DeveloperPolicy.html#patch-reversion-policy I'd like to
request that we revert 54b64572407c8305c7bb8cc20c46a5e0c66b2979, cherry-pick
the revert to release/12.x, then revisit re-enabling this once
https://bugs.llvm.org/show_bug.cgi?id=50440 is resolved.


Referenced Bugs:

https://bugs.llvm.org/show_bug.cgi?id=4068
[Bug 4068] [Meta] Compiling the Linux kernel with clang
https://bugs.llvm.org/show_bug.cgi?id=49317
[Bug 49317] [meta] 12.0.1 Release Blockers
-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20210603/31fab9a3/attachment.html>