[PATCH] D39469: [asan] Add CMake hook to override default shadow scale

[Vitaly Buka via Phabricator via llvm-commits]

vitalybuka added a comment.

I think LLVM_ASAN_SHADOW_SCALE is not best approach.
Seems unusual that compiler which can generate code for multiple platforms needs to be reconfigure and rebuild.

@kcc already suggested using regular compile flag: http://lists.llvm.org/pipermail/llvm-dev/2017-October/118685.html
So clang will be able to generate both versions of instrumented code. Obviously we need to have multiple version of run-time so driver will pick proper version based on -fsanitize-address-granularity value. (or somehow we can init the same runtime correctly, not sure yet if it's possible)


https://reviews.llvm.org/D39469