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Re: Null pointer check elimination


> 
> Per Bothner <per@bothner.com> writes:
> 
> | A "function-never-returns-null" attribute doesn't seem like
> | the right mechanism.  Instead, there should be a "never-null"
> | attribute on pointer types.  A "function-never-returns-null" is
> | just a function whose return-type has the "never-null" attribute.
> 
> We already have such mechanism: a reference type -- which morally is
> implemented as a pointer type.

That was mentioned a way ago as being wrong.  A reference type can be NULL.

-- Pinski


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