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

[Luke Lau 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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lukel97 wrote:

Yeah that's what I originally had in mind, but I'm not strongly opinionated so I'll leave this up to you/other reviewers. This PR looks like it's making good progress and I don't want to block it :)

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