[llvm] [IR][LangRef] Add partial reduction add intrinsic (PR #94499)

[Graham Hunter via llvm-commits]

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@@ -14250,7 +14250,7 @@ Arguments:
 """"""""""
 The first 4 arguments are similar to ``llvm.instrprof.increment``. The indexing
 is specific to callsites, meaning callsites are indexed from 0, independent from
-the indexes used by the other intrinsics (such as 
+the indexes used by the other intrinsics (such as
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huntergr-arm wrote:

nit: unrelated whitespace change.

https://github.com/llvm/llvm-project/pull/94499