[llvm-dev] MCJit Runtine Performance

[Tim Northover via llvm-dev]

On 5 February 2016 at 00:13, Lang Hames via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> In particular - are you explicitly setting the optimization level? The old
> JIT may have had a different default.

Did we change what you had to do to set the CPU at some point, or am I
misremembering that? If the old JIT automatically went for
-march=native but the new one doesn't that could explain the slowdown.

Tim.