[all-commits] [llvm/llvm-project] 1141c8: [X86][AMX] Fix bug for amx cast tranform

[Luo, Yuanke via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1141c8b6fc1f50a58f4cedec8e43e669662c1715
      https://github.com/llvm/llvm-project/commit/1141c8b6fc1f50a58f4cedec8e43e669662c1715
  Author: Luo, Yuanke <yuanke.luo at intel.com>
  Date:   2022-03-30 (Wed, 30 Mar 2022)

  Changed paths:
    M llvm/lib/Target/X86/X86LowerAMXType.cpp
    M llvm/test/CodeGen/X86/AMX/lat-transform-amx-bitcast.ll

  Log Message:
  -----------
  [X86][AMX] Fix bug for amx cast tranform

After combining amx cast operation, some amx cast intrinsic may be dead
code. This patch is to delete such dead code and avoid crash.