[llvm-dev] New register class and patterns

Matt Arsenault via llvm-dev llvm-dev at lists.llvm.org
Fri Feb 5 12:03:04 PST 2016

> On Feb 5, 2016, at 12:00, Rail Shafigulin <rail at esenciatech.com> wrote:
> Is this something that is always done by LLVM? Is it me who is telling to LLVM to do it? I'd appreciate if you could point out where in the code this is happening.

You should add a let Defs = [FLAGREGISTERNAME] on the defining instruction

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