[LLVMbugs] [Bug 11259] New: possible optimization: convert ui2fp into a select instr if i1 type is used

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Fri Oct 28 11:54:08 PDT 2011


http://llvm.org/bugs/show_bug.cgi?id=11259

           Summary: possible optimization: convert ui2fp into a select
                    instr if i1 type is used
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: Core LLVM classes
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: nadav.rotem at intel.com
                CC: llvmbugs at cs.uiuc.edu


when calling si2fp or ui2fp and the input number is of type i1, it is possible
to convert it to a select (i1 %c, 0, -1).

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