[llvm-bugs] [Bug 38537] New: operand size prefix ignored when disassembling e8

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=38537

            Bug ID: 38537
           Summary: operand size prefix ignored when disassembling e8
           Product: tools
           Version: 6.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: llvmc
          Assignee: unassignedbugs at nondot.org
          Reporter: acab at digitalfuture.it
                CC: llvm-bugs at lists.llvm.org

llvm-mc disassembles the sequence "0x66 0xe8 0x33 0x22 0x11 0x00" as "callq
xxxxxxxx" as if the op size prefix wasn't there.

The proper decoding would be:
66 e8 33 22 - callw  xxxx
11 00 - adc    %eax,(%rax)

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