[PATCH] Move Asan instrumentation to sanopt pass

[Yury Gribov]

On 07/22/2014 12:27 PM, Yury Gribov wrote:
>> Attached patch delays generation of Asan memory checking
>> code until sanopt pass.
>
> Here is an updated patch based on Jakub's review.
> Bootstrapped and regtested on x64.

Yet another version with ASAN_CHECK changed to builtin function
(instead of internal-fn) per Richard's advice.

-Y



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