[clang] [llvm] IR: Make llvm.fake.use a DefaultAttrsIntrinsic (PR #131743)

[Stephen Tozer via llvm-commits]

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@@ -1837,13 +1837,13 @@ attributes #2 = { nounwind "target-cpu"="tahiti" }
 !llvm.module.flags = !{!0}
 !0 = !{i32 1, !"amdhsa_code_object_version", i32 500}
 ;.
-; HSA: attributes #[[ATTR0:[0-9]+]] = { nounwind }
+; HSA: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
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SLTozer wrote:

Do these attributes (and the ones below) need updating with the change to use `IntrNoMem`?

https://github.com/llvm/llvm-project/pull/131743