[LLVMbugs] [Bug 5259] New: unacceptable compile time in Unswitch loops

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Tue Oct 20 09:05:53 PDT 2009


           Summary: unacceptable compile time in Unswitch loops
           Product: new-bugs
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: regehr at cs.utah.edu
                CC: llvmbugs at cs.uiuc.edu

Created an attachment (id=3680)
 --> (http://llvm.org/bugs/attachment.cgi?id=3680)
failure inducing testcase

This command line:

/home/regehr/z/tmp/llvm-gcc-r84167-install/bin/clang -ftime-report -O1 foo.c -w

Gives the attached output.  Simple variants of this input are effectively

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