[llvm] [AMDGPU] Create AMDGPUMnemonicAlias tablegen class (PR #89288)

[Jay Foad via llvm-commits]

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@@ -963,11 +963,10 @@ class VIMAGE_Atomic_gfx12<mimgopc op, string opcode, RegisterClass DataRC,
   let AsmString = opcode#" $vdata, "#AddrAsm#", $rsrc$dmask$dim$cpol$r128$a16$tfe";
 }
 
-class VIMAGE_Atomic_gfx12_Renamed<mimgopc op, string opcode, string renamed,
+class VIMAGE_Atomic_gfx12_Renamed<mimgopc op, string renamed,
                                   RegisterClass DataRC, int num_addrs,
                                   bit enableDisasm = 0>
-   : VIMAGE_Atomic_gfx12<op, renamed, DataRC, num_addrs, enableDisasm>,
-     MnemonicAlias<opcode, renamed>, Requires<[isGFX12Plus, HasImageInsts]>;
+  : VIMAGE_Atomic_gfx12<op, renamed, DataRC, num_addrs, enableDisasm>;
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jayfoad wrote:

You removed an alias here - does it get added somewhere else instead?

https://github.com/llvm/llvm-project/pull/89288