[llvm] [AMDGPU][SIInsertWaitcnts] Do not add s_waitcnt when the counters are known to be 0 already (PR #72830)

[Pierre van Houtryve via llvm-commits]

Juan Manuel MARTINEZ =?utf-8?q?CAAMAÑO?= <juamarti at amd.com>,pvanhout
 <pierre.vanhoutryve at amd.com>
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/72830 at github.com>


Pierre-vh wrote:

> > Original patch by @jmmartinez : #65735
> 
> I had a bunch of outstanding comments on that PR.

Aren't they all addressed, with the exception of the added `const` in SIInsertWaitCnt (which i'm going to remove) and the extra waitcnt mystery which I am looking into right now?

https://github.com/llvm/llvm-project/pull/72830