[LLVMbugs] [Bug 2426] New: llc -mcpu=help doesn't work

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=2426

           Summary: llc -mcpu=help doesn't work
           Product: tools
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: minor
          Priority: P2
         Component: llc
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: matthijs at stdin.nl
                CC: llvmbugs at cs.uiuc.edu


llc -help says

    -mcpu=<cpu-name>             - Target a specific cpu type (-mcpu=help for
details)

however, llc -mcpu=help or llc -march=x86 -mcpu=help gives no output and llc
simply hangs indefinitely (I guess it simply ignores the help option and just
waits for input to appear on stdin). Looking at the code, there does not seem
to
be any code that handles the -mcpu=help case. The same holds for -mattrs=help.


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