[PATCH] [InstructionMerge - GVN] hoisting and sinking of equivalent memory instructions in diamonds

[Chandler Carruth]

On Tue, Apr 29, 2014 at 12:31 PM, Gerolf Hoflehner <ghoflehner at apple.com>wrote:

> It runs as part of GVN in the GVN preparation
> loop.
>

Quick question before I dig any deeper -- why inside of GVN? Could this
just be a stand-alone pass?
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