[llvm] Vector masked extract last active element intrinsic (PR #113587)

[Paul Walker via llvm-commits]

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@@ -19956,6 +19956,36 @@ the follow sequence of operations:
 
 The ``mask`` operand will apply to at least the gather and scatter operations.
 
+'``llvm.experimental.vector.masked.extract.last.active``' Intrinsic
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paulwalker-arm wrote:

The "last.active" part already implies the data vector will be masked?  I think you want either `llvm.experimental.vector.masked.extract.last` or `llvm.experimental.vector.extract.last.active` with my favourite being the latter.

https://github.com/llvm/llvm-project/pull/113587