[llvm-bugs] [Bug 28232] New: [mc] buffer_dwordx3, buffer_atomic_fcmpswap/fmin/mfax are not supported.

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=28232

            Bug ID: 28232
           Summary: [mc] buffer_dwordx3, buffer_atomic_fcmpswap/fmin/mfax
                    are not supported.
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: AMDGPU
          Assignee: artem.tamazov at amd.com
          Reporter: artem.tamazov at amd.com
                CC: llvm-bugs at lists.llvm.org, nikolay.haustov at amd.com
    Classification: Unclassified

Created attachment 16612
  --> https://llvm.org/bugs/attachment.cgi?id=16612&action=edit
03853.tests_tg_gfx7_asm_lit1_bug.06.08.min.buffer_load_dwordx3_etc.zip

Unsupported instructions:
> buffer_load_dwordx3
> buffer_store_dwordx3
> buffer_atomic_fcmpswap
> buffer_atomic_fcmpswap_x2
> buffer_atomic_fmax
> buffer_atomic_fmax_x2
> buffer_atomic_fmin
> buffer_atomic_fmin_x2

_fcmpswap/fmin/max are gfx7-only.

Tested with r272673 (git # da10a460d7c98278561225fda90855b303675f35)

gfx7 lit tests attached.

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