[LLVMbugs] [Bug 2058] New: Missed memcpy optimization

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Mon Feb 18 09:12:23 PST 2008


           Summary: Missed memcpy optimization
           Product: new-bugs
           Version: unspecified
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: baldrick at free.fr
                CC: llvmbugs at cs.uiuc.edu

Created an attachment (id=1421)
 --> (http://llvm.org/bugs/attachment.cgi?id=1421)
testcase .ll

In the attached testcase there are two memcpy's.  In theory one
could be eliminated, for example by using %agg.result instead of
%temp everywhere.  I admit that this is tricky - but not impossible!

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