[all-commits] [llvm/llvm-project] 690bed: [X86][AMX] Fix infinite loop of getShape.

[Luo, Yuanke via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 690bed0cec7e3359b0136acd98c0940aed5d0722
      https://github.com/llvm/llvm-project/commit/690bed0cec7e3359b0136acd98c0940aed5d0722
  Author: Luo, Yuanke <yuanke.luo at intel.com>
  Date:   2022-04-10 (Sun, 10 Apr 2022)

  Changed paths:
    M llvm/lib/Target/X86/X86LowerAMXType.cpp
    M llvm/test/CodeGen/X86/AMX/amx-combine-undef.ll

  Log Message:
  -----------
  [X86][AMX] Fix infinite loop of getShape.

When walk the user chain to get the shape of a phi node. If it is phi
node in the chain, we should walk to the user of this phi node instead
of the original phi node.