[llvm-bugs] [Bug 24402] Loop is incorrectly optimized away

via llvm-bugs llvm-bugs at lists.llvm.org
Sat Aug 8 14:26:06 PDT 2015


https://llvm.org/bugs/show_bug.cgi?id=24402

Richard Smith <richard-llvm at metafoo.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |richard-llvm at metafoo.co.uk
            Version|3.6                         |3.5
         Resolution|---                         |FIXED

--- Comment #1 from Richard Smith <richard-llvm at metafoo.co.uk> ---
I can't reproduce this with trunk, nor 3.6, but it reproduces with 3.5. Looks
like this has been fixed for a while. I remember we had (and fixed) a bug
analyzing loops with an N bit induction variable that perform exactly 2^N
iterations; that could be the bug you hit.

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