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

[Luke Lau via llvm-commits]

================
@@ -78,6 +78,7 @@ Changes to the LLVM IR
   * ``llvm.instprof.mcdc.tvbitmap.update``: 3rd argument has been
     removed. The next argument has been changed from byte index to bit
     index.
+* Added ``llvm.masked.compress`` intrinsic.
----------------
lukel97 wrote:

```suggestion
* Added ``llvm.experimental.vector.compress`` intrinsic.
```

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