[all-commits] [llvm/llvm-project] 75805d: [AArch64] Add implicit uses for operands when expa...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 75805dce5ff874676f3559c069fcd6737838f5c0
      https://github.com/llvm/llvm-project/commit/75805dce5ff874676f3559c069fcd6737838f5c0
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2021-03-03 (Wed, 03 Mar 2021)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ExpandPseudoInsts.cpp
    M llvm/test/CodeGen/AArch64/expand-blr-rvmarker-pseudo.mir

  Log Message:
  -----------
  [AArch64] Add implicit uses for operands when expanding BLR_RVMARKER.

Make sure we preserve info about passed arguments as implicit uses, to
make sure later passes still have access to this information.

This fixes a mis-compile where the machine-combiner would pick an
incorrect free register.