[LLVMbugs] [Bug 642] NEW: PowerPC backend does not correctly support SETO*

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.cs.uiuc.edu/bugs/show_bug.cgi?id=642

           Summary: PowerPC backend does not correctly support SETO*
           Product: libraries
           Version: 1.3
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Backend: PowerPC
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: sabre at nondot.org


This is a tracking bug so I (or anyone else who is interested) doesn't forget to add support for ordered ops 
in the PPC backend.

Since ordered comparisons (by my reading) don't have single-instruction implementations, they should 
probably be split into two ops by the legalizer.  For example, setole(x,y) should be seto(x,y) & setle(x,y).

-Chris



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