[PATCH] D129013: [RISCV] Enable (scalable) vectorization by default

[Philip Reames via Phabricator via llvm-commits]

reames added a comment.

@compnerd  Two points inspired by your response.

1. Are you saying that the uninitialized state is not guaranteed to have VS set to off?  This differs from my current understanding, and I don't see how this would follow from the wording in the vector spec.  If this is true, that's nasty and we should definitely clarify that.  Pointers to spec or discussion on this would be quite helpful.

2. clang is inherently a cross compiler.  We can't ask question of the host environment (e.g. kernel version).  To my knowledge, this information is not available in any information we do have about the target platform.  Am I missing something here?


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  https://reviews.llvm.org/D129013/new/

https://reviews.llvm.org/D129013