[LLVMbugs] [Bug 14221] New: SQRTSS and similar scalar SSE insns are not accurately modelled

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=14221

             Bug #: 14221
           Summary: SQRTSS and similar scalar SSE insns are not accurately
                    modelled
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: X86
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: michael.liao at intel.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Scalar SSE instructions, such as SQRTSS, should be model as binary insns with
the one input tied to the output and the other is the regular numeric input
source. This's exactly the model of AVX variants.

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