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

[Luke Lau via llvm-commits]

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@@ -19197,6 +19197,71 @@ the follow sequence of operations:
 
 The ``mask`` operand will apply to at least the gather and scatter operations.
 
+
+.. _int_masked_compress:
+
+'``llvm.masked.compress.*``' Intrinsics
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lukel97 wrote:

Should we mark this as experimental? Something like `llvm.experimental.vector.compress`?

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