[PATCH] D143813: [ClangFE] Check that __sync builtins are naturally aligned.

[Jonas Paulsson via Phabricator via cfe-commits]

jonpa added a comment.

In D143813#4258744 <https://reviews.llvm.org/D143813#4258744>, @ahatanak wrote:

> In D143813#4257943 <https://reviews.llvm.org/D143813#4257943>, @jonpa wrote:
>
>> I don't understand the first argument - I thought it was supposed to be just an address...
>
> It's a statement expression. https://gcc.gnu.org/onlinedocs/gcc/Statement-Exprs.html
>
> The value of the last subexpression serves as the value of the entire construct.

Ah, ok, thanks!


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