AMDGPU: Move LICM after AMDGPUCodeGenPrepare The commit that added the run says it's to hoist uniform parts of integer division expansion. That expansion is performed later, so this didn't do anything in that case. Move this later so the original test shows the improvement. This also saves a run of "Canonicalize natural loops". Not sure why this appears to be still getting a separate loop PM run. Also feels a bit heavy to run this just for divide. Is there a way to specifically hoist the divide sequence when it expands?
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