[llvm] [InstCombine] Improve shamt range calculation (PR #72535)

Nikita Popov via llvm-commits llvm-commits at lists.llvm.org
Fri Nov 17 01:03:38 PST 2023


nikic wrote:

I think there are really two independent changes here: 1. Handle unknown shift amounts and 2. use constant range. The majority of the test changes is caused by 1. Can you please reduce this PR to just the unknown shift amount handling and separate ConstantRange into a separate one?

https://github.com/llvm/llvm-project/pull/72535


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