[llvm] [AMDGPU] gfx1250 SOPP MC tests. NFC. (PR #145082)

[Jay Foad via llvm-commits]

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@@ -1,4 +1,5 @@
-# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -disassemble -show-encoding < %s | FileCheck -strict-whitespace -check-prefixes=GFX12 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -disassemble -show-encoding < %s | FileCheck -strict-whitespace -check-prefixes=GFX12,GFX1200 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1250 -disassemble -show-encoding < %s | FileCheck -strict-whitespace -check-prefixes=GFX12 %s
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jayfoad wrote:

How does this work without a `not`? Doesn't the disassembler give an error on the unrecognized gfx1200-only instructions?

https://github.com/llvm/llvm-project/pull/145082