[llvm-bugs] [Bug 27162] Dead stores from lowered memset

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Mon May 2 09:44:53 PDT 2016


https://llvm.org/bugs/show_bug.cgi?id=27162

Jun Bum Lim <junbuml at codeaurora.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #8 from Jun Bum Lim <junbuml at codeaurora.org> ---
(In reply to comment #7)
> Jun committed r267197, which shortens the memset (in the beginning).
> 
> Jun,
> Closing this one as fixed, but fee free to re-open if you'd like to
> investigate other opportunities, such as splitting the memset.


Based on getMaxStoresPerMemset(), if memset is small enough, we could also
split the memset instead of shortening only the beginning or later.

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