[llvm] [MachineCSE] Clear kill flags once per register in copy propagation (PR #226781)

MMS IT GmbH via llvm-commits llvm-commits at lists.llvm.org
Tue Oct 6 05:30:22 PDT 2026

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mms-it-ch wrote:

Ping. @arsenm @topperc, could one of you take a look? The change only clears kill flags once per register in `PerformTrivialCopyPropagation` (MachineCSE was quadratic in the number of copies of a register); generated code is unchanged.


https://github.com/llvm/llvm-project/pull/226781

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