[llvm] [LLVM][Support] add nonNull function helper (PR #188718)

[Jakub Kuderski via llvm-commits]

Nathan =?utf-8?q?Gauër?= <brioche at google.com>,
Nathan =?utf-8?q?Gauër?= <brioche at google.com>,
Nathan =?utf-8?q?Gauër?= <brioche at google.com>
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/188718 at github.com>


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@@ -811,6 +811,19 @@ T cantFail(Expected<T> ValOrErr, const char *Msg = nullptr) {
   }
 }
 
+/// Calls llvm_unreachable if Pointer is null, otherwise returns the
+/// pointer as is.
+template <typename T>
+LLVM_ATTRIBUTE_RETURNS_NONNULL T *nonNull(T *Pointer,
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kuhar wrote:

It would be nice for this to start with a verb, e.g.: `assertNonNull`

https://github.com/llvm/llvm-project/pull/188718