[llvm] [GlobalIsel] Combine G_ADD and G_SUB with constants (PR #97771)

[Matt Arsenault via llvm-commits]

Thorsten =?utf-8?q?Schütt?= <schuett at gmail.com>,
Thorsten =?utf-8?q?Schütt?= <schuett at gmail.com>
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In-Reply-To: <llvm.org/llvm/llvm-project/pull/97771 at github.com>


arsenm wrote:

> I can remove the comments. The alternative would be to pass the `G_CONSTANT` s as MachineInstr to the match function and then manually extract the immediate, but this is really ugly.

A null check that can never happen is misleading. Just don't check and let the assert in operator * do its job 

https://github.com/llvm/llvm-project/pull/97771