[llvm-bugs] [Bug 27980] New: FAIL: lencod.execution_time

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=27980

            Bug ID: 27980
           Summary: FAIL: lencod.execution_time
           Product: Polly
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Optimizer
          Assignee: polly-dev at googlegroups.com
          Reporter: doerfert at cs.uni-saarland.de
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

At least one of these three commits caused (or exposed) a bug in lencode:

Revision     271149
[PM] SCCP should preserve GlobalsAA even if the IR is mutated.

Revision     271150
[ValueTracking] ICmp instructions propagate poison

Revision     271151
[SCEV] Don't always add no-wrap flags to post-inc add recs


See also:

http://lab.llvm.org:8011/builders/perf-x86_64-penryn-O3-polly-before-vectorizer-unprofitable/builds/3026

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