[all-commits] [llvm/llvm-project] 0fe648: [ARM] VECTOR_REG_CAST undef -> undef

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0fe64812d86ca387115d5b25eb24bfb2287c3b8a
      https://github.com/llvm/llvm-project/commit/0fe64812d86ca387115d5b25eb24bfb2287c3b8a
  Author: David Green <david.green at arm.com>
  Date:   2021-02-28 (Sun, 28 Feb 2021)

  Changed paths:
    M llvm/lib/Target/ARM/ARMISelLowering.cpp
    M llvm/test/CodeGen/Thumb2/mve-be.ll

  Log Message:
  -----------
  [ARM] VECTOR_REG_CAST undef -> undef

Propagate undef through VECTOR_REG_CAST nodes, allowing extra
simplification in some patterns.