Null pointer check elimination

Sat Nov 12 22:05:00 GMT 2005

On Saturday 12 November 2005 20:57, Gabriel Dos Reis wrote:
> Paul Brook <paul@codesourcery.com> writes:
> | On Saturday 12 November 2005 18:32, Gabriel Dos Reis wrote:
> | > 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
> |
> | No. We've had this discussion before, and the conclusion what that
> | reference types can be NULL.
> |
> | http://gcc.gnu.org/ml/gcc-patches/2004-08/msg01463.html
>> That simply means GCC got it wrong.

If by "GCC got it wrong" you mean several key GCC developers disagree with 
your opinion of what the semantics of REFERENCE_TYPE are/should be, then yes.
Paul