[LLVMbugs] [Bug 9379] New: MC assembler doesn't recognize inl (%%dx)

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Wed Mar 2 14:51:50 PST 2011


           Summary: MC assembler doesn't recognize inl (%%dx)
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: pageexec at freemail.hu
                CC: llvmbugs at cs.uiuc.edu, pageexec at freemail.hu
            Blocks: 4068

while compiling linux with integrated-as i get the following error:

arch/x86/kernel/cpu/vmware.c:48:2: error: invalid operand for instruction
        VMWARE_PORT(GETVERSION, eax, ebx, ecx, edx);
arch/x86/kernel/cpu/vmware.c:38:10: note: instantiated from:
        __asm__("inl (%%dx)" :                                          \
<inline asm>:1:6: note: instantiated into assembly here
        inl (%dx)

while 'in' doesn't take a memory operand, apparently gas can digest this form
as well, so i'll leave it up to you if you want to support this bug/feature as
an exception or not.

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