[LLVMbugs] [Bug 15412] New: SROA got 2.5x times slower after rewrite. (example included)

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Fri Mar 1 14:19:23 PST 2013


            Bug ID: 15412
           Summary: SROA got 2.5x times slower after rewrite. (example
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Core LLVM classes
          Assignee: unassignedbugs at nondot.org
          Reporter: aribonbon at ymail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 10122
  --> http://llvm.org/bugs/attachment.cgi?id=10122&action=edit

If you compile the CPP file attached to LL, and run opt -O2 --time-passes you
will notice that the new SROA pass takes 2.5x times longer than the old one.

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