[llvm-bugs] [Bug 48884] New: [AMDGPU][MC] Parser may report an incorrect error position when there is no custom handler

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https://bugs.llvm.org/show_bug.cgi?id=48884

            Bug ID: 48884
           Summary: [AMDGPU][MC] Parser may report an incorrect error
                    position when there is no custom handler
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: AMDGPU
          Assignee: unassignedbugs at nondot.org
          Reporter: dpreobrazhensky at luxoft.com
                CC: llvm-bugs at lists.llvm.org

Parser may report an incorrect error position by skipping a comma. This bug
manifests itself only in cases when there is no custom errors handler.

For example, assembling an instruction

    image_atomic_xor v4, v32, s[96:103] dmask:0x1 dim:, glc

results in the following error message:

    error: failed parsing operand
    image_atomic_xor v4, v32, s[96:103] dmask:0x1 dim:, glc
                                                        ^

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