[PATCH] D134410: [clang][CodeGen] Add noundef metadata to load instructions (preliminary)

Mon Sep 26 23:39:41 PDT 2022

vitalybuka added a comment.

In D134410#3817070 <https://reviews.llvm.org/D134410#3817070>, @xbolva00 wrote:

> In D134410#3816918 <https://reviews.llvm.org/D134410#3816918>, @vitalybuka wrote:
>
>> I tried to hook this patch into MemorySanitizer and it reduces instrumented code by ~30% !
>
> Wow, amazing results!

Also I applied this patch with D134698 <https://reviews.llvm.org/D134698> and used on out large test set, expecting significant number of pre-existing reports. To my surprise I see not many of them.

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https://reviews.llvm.org/D134410