[PATCH] D79537: Add NoMerge MIFlag to avoid MIR branch folding

[Reid Kleckner via Phabricator via llvm-commits]

rnk added a subscriber: vitalybuka.
rnk added a comment.

After this lands, can you follow this up by migrating the sanitizer passes to using the attribute instead of using empty inline asm blobs? Send the patch to @vitalybuka. This is the code I'm thinking of:
https://github.com/llvm/llvm-project/blob/028bfdd8913616f7a3e57e8ef5c2a9990e528ff0/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp#L1626
https://github.com/llvm/llvm-project/blob/d6695e18763a05b30cb336c18157175277da8f4b/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp#L864
... and any similar uses.

Run `check-asan`, `check-msan`, etc to run the sanitizer integration tests, and confirm that they pass. You can run `check-all` to run everything and be sure as well.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D79537/new/

https://reviews.llvm.org/D79537