[llvm] [IR] Allow llvm.experimental.memset.pattern to take any sized type as the pattern argument (PR #132026)

[Nikita Popov via llvm-commits]

================
@@ -15640,8 +15640,8 @@ Syntax:
 """""""
 
 This is an overloaded intrinsic. You can use
-``llvm.experimental.memset.pattern`` on any integer bit width and for
-different address spaces. Not all targets support all bit widths however.
+``llvm.experimental.memset.pattern`` on any sized type for different address
----------------
nikic wrote:

```suggestion
``llvm.experimental.memset.pattern`` on any sized type and for different address
```

https://github.com/llvm/llvm-project/pull/132026