[all-commits] [llvm/llvm-project] b42fe6: [DAG] Add users of operand of simplified extract_v...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b42fe6740ec696dca0e3dc914d2638088caa3f53
      https://github.com/llvm/llvm-project/commit/b42fe6740ec696dca0e3dc914d2638088caa3f53
  Author: David Green <david.green at arm.com>
  Date:   2024-07-23 (Tue, 23 Jul 2024)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/test/CodeGen/AArch64/arm64-subvector-extend.ll
    M llvm/test/CodeGen/AArch64/arm64-vabs.ll
    M llvm/test/CodeGen/AArch64/cmp-select-sign.ll
    M llvm/test/CodeGen/AArch64/fptoi.ll
    M llvm/test/CodeGen/AArch64/fptosi-sat-vector.ll
    M llvm/test/CodeGen/AArch64/fptoui-sat-vector.ll
    M llvm/test/CodeGen/AArch64/nontemporal-load.ll
    M llvm/test/CodeGen/AArch64/sadd_sat_vec.ll
    M llvm/test/CodeGen/AArch64/ssub_sat_vec.ll
    M llvm/test/CodeGen/AArch64/uadd_sat_vec.ll
    M llvm/test/CodeGen/AArch64/usub_sat_vec.ll
    M llvm/test/CodeGen/Thumb2/mve-fptosi-sat-vector.ll
    M llvm/test/CodeGen/Thumb2/mve-fptoui-sat-vector.ll
    M llvm/test/CodeGen/Thumb2/mve-minmaxi.ll
    M llvm/test/CodeGen/Thumb2/mve-vst3.ll
    M llvm/test/CodeGen/Thumb2/mve-vst4.ll

  Log Message:
  -----------
  [DAG] Add users of operand of simplified extract_vector_elt to worklist (#100074)

This helps to ensure we revisit the last extract_element uses of a node
so that it can be optimized away in cases such as extract(insert(scalartovec(x), 1), 0).



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