[llvm-bugs] [Bug 47390] [LoopVectorize] Assertion `isa<PHINode>(UI) && "Expected LCSSA form"' failed.

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Sep 2 01:48:46 PDT 2020


https://bugs.llvm.org/show_bug.cgi?id=47390

Florian Hahn <florian_hahn at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #1 from Florian Hahn <florian_hahn at apple.com> ---
I cannot reproduce the issue with a clang build from recent trunk.

When built with `clang -O3`, the loop gets removed entirely. I also cannot
reproduce with Clang 10/Clang 10.1 https://godbolt.org/z/r89vo9

Please re-open with more details on how to reproduce the crash.

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