[LLVMbugs] [Bug 11034] LLVM failed at deleting my loops

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Sat Oct 22 12:58:45 PDT 2011


Nick Lewycky <nicholas at mxc.ca> changed:

           What    |Removed                     |Added
             Status|ASSIGNED                    |RESOLVED
                 CC|                            |nicholas at mxc.ca
         Resolution|                            |FIXED

--- Comment #22 from Nick Lewycky <nicholas at mxc.ca> 2011-10-22 14:58:45 CDT ---
Thanks! Committed in r142731.

Improved compile time is not surprising; when SCEV fails to fully solve a loop,
it will get queries for that loop over and over again (sometimes without SCEV
having been preserved in between) and will spend a lot of time trying to
resolve it. Solving it once up front is faster.

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