[llvm-bugs] [Bug 43524] New: [AMDGPU][MC][GFX10] null cannot be used with 64-bit dst operands

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https://bugs.llvm.org/show_bug.cgi?id=43524

            Bug ID: 43524
           Summary: [AMDGPU][MC][GFX10] null cannot be used with 64-bit
                    dst operands
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            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

Currently assembler accepts null for 32-bit and shorter destination operands.
Null should be enabled for 64-bit dst operands as well.

Examples of failed tests:

    s_or_b64 null, s[0:1], s[0:1]
    s_atomic_add_x2 null, s[0:1], s0

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