[llvm-branch-commits] [llvm] [AMDGPU] Fix sign confusion in performMulLoHiCombine (PR #106977)

[Marek Olšák via llvm-branch-commits]

marekolsak wrote:

ROCm should consider it a critical issue because it fixes int64 multiplication by a constant.

It's less critical for other LLVM users like Mesa.

https://github.com/llvm/llvm-project/pull/106977