[llvm] [LLVM] Add `llvm.masked.compress` intrinsic (PR #92289)

[Lawrence Benson via llvm-commits]

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@@ -24975,6 +24975,72 @@ The '``llvm.masked.compressstore``' intrinsic is designed for compressing data i
 
 Other targets may support this intrinsic differently, for example, by lowering it into a sequence of branches that guard scalar store operations.
 
+Masked Vector Compress Intrinsic
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lawben wrote:

After re-reading this, I think I misunderstood your comments, sorry. You were advocating for calling the the intrinsic `@llvm.vector.compress` instead of `@llvm.masked.compress` and not just moving this in the docs? @lukel97 @nikolaypanchenko Could you please confirm this? 

https://github.com/llvm/llvm-project/pull/92289