[LLVMdev] Intended semantics for ``fence seq_cst``

[Chandler Carruth]

On Wed, Jul 31, 2013 at 6:10 PM, JF Bastien <jfb at google.com> wrote:

> This promotion happens after opt, but before most
> architecture-specific optimizations
>

You will need to do this in the frontend. The target independent optimizers
are allowed to use the memory model.
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