[llvm] [DirectX] Add DXIL validation of `llvm.loop` metadata (PR #164292)

[Joshua Batista via llvm-commits]

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@@ -24,9 +24,10 @@ _Z4mainDv3_j.exit:                                ; preds = %for.body.i, %entry
 ; These next check lines check that only the range metadata remains
 ; No more metadata should be necessary, the rest (the current 0 and 1)
 ; should be removed.
-; CHECK-NOT: !{!"llvm.loop.mustprogress"}
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bob80905 wrote:

nit: I don't see why there are differences here.  Maybe some extra whitespace?

https://github.com/llvm/llvm-project/pull/164292