[all-commits] [llvm/llvm-project] c398fa: Revert "Reapply "RegisterCoalescer: Add implicit-d...

[Stefan Pintilie via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c398fa009a47eb24f88383d5e911e59e70f8db86
      https://github.com/llvm/llvm-project/commit/c398fa009a47eb24f88383d5e911e59e70f8db86
  Author: Stefan Pintilie <stefanp at ca.ibm.com>
  Date:   2023-12-16 (Sat, 16 Dec 2023)

  Changed paths:
    M llvm/lib/CodeGen/RegisterCoalescer.cpp
    M llvm/test/CodeGen/AArch64/GlobalISel/arm64-pcsections.ll
    R llvm/test/CodeGen/X86/coalescer-breaks-subreg-to-reg-liveness.ll
    M llvm/test/CodeGen/X86/coalescer-implicit-def-regression-imp-operand-assert.mir
    R llvm/test/CodeGen/X86/coalescing-subreg-to-reg-requires-subrange-update.mir
    R llvm/test/CodeGen/X86/subreg-to-reg-coalescing.mir

  Log Message:
  -----------
  Revert "Reapply "RegisterCoalescer: Add implicit-def of super register when coalescing SUBREG_TO_REG""

This reverts commit f4b5be1ecdc85ca4257b739afb8d57e23c7a8030.

The above change was breaking the clang-ppc64le-linux-test-suite bot.