[LLVMbugs] [Bug 8061] New: xchgl/in/out instructions unknown to MC

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=8061

           Summary: xchgl/in/out instructions unknown to MC
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: rdivacky at freebsd.org
                CC: llvmbugs at cs.uiuc.edu


pes ~/mc-elf$ cat xchgl.s
 xchgl   368(%rax),%ecx

 outb    123, %al

 inb     %al, 123
pes ~/mc-elf$ llvm-mc xchgl.s
        .section        __TEXT,__text,regular,pure_instructions
xchgl.s:1:2: error: unrecognized instruction
 xchgl   368(%rax),%ecx
 ^

xchgl.s:3:2: error: unrecognized instruction
 outb    123, %al
 ^

xchgl.s:5:2: error: unrecognized instruction
 inb     %al, 123
 ^

MC does not know about these instructions although they all seem to be defined
in 
X86GenAsmMatcher.inc

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