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

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

In D129013#3707331 <https://reviews.llvm.org/D129013#3707331>, @jrtc27 wrote:

> This is user error, plain and simple. If you say you have extension foo then the compiler should be free to use it. V isn't special; specifying +zba for example when your implementation lacks it has the exact same behaviour. If anything, leaving autovectorisation off would be more inconsistent.

What if we had a -mcpu that included V? Would specifying that CPU when the kernel doesn't support it also be user error?


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https://reviews.llvm.org/D129013