[all-commits] [llvm/llvm-project] 874fbe: [MachineSink] Clear kill flags on operands outside...

Carl Ritson via All-commits all-commits at lists.llvm.org
Thu Jun 23 22:03:29 PDT 2022

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 874fbe2cbbe6f548858d0c8e804eb66ca477697c
  Author: Carl Ritson <carl.ritson at amd.com>
  Date:   2022-06-24 (Fri, 24 Jun 2022)

  Changed paths:
    M llvm/lib/CodeGen/MachineSink.cpp
    A llvm/test/CodeGen/SystemZ/machinelicm-sunk-kill-flags.mir

  Log Message:
  [MachineSink] Clear kill flags on operands outside loop

If an instruction is sunk into a loop then any kill flags on
operands declared outside the loop must be cleared as these
will be live for all loop iterations.

Fixes #46827

Reviewed By: MatzeB

Differential Revision: https://reviews.llvm.org/D126754

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