[all-commits] [llvm/llvm-project] ad12e6: [ARM] Turn sext_inreg(VGetLaneu) into VGetLaneu

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ad12e6ee9579149c0efb594211fa3fb8aed2d84f
      https://github.com/llvm/llvm-project/commit/ad12e6ee9579149c0efb594211fa3fb8aed2d84f
  Author: David Green <david.green at arm.com>
  Date:   2021-02-01 (Mon, 01 Feb 2021)

  Changed paths:
    M llvm/lib/Target/ARM/ARMISelLowering.cpp
    M llvm/test/CodeGen/ARM/dagcombine-anyexttozeroext.ll
    M llvm/test/CodeGen/Thumb2/mve-div-expand.ll
    M llvm/test/CodeGen/Thumb2/mve-vcvt.ll
    M llvm/test/CodeGen/Thumb2/mve-vecreduce-add.ll
    M llvm/test/CodeGen/Thumb2/mve-vecreduce-addpred.ll
    M llvm/test/CodeGen/Thumb2/mve-vecreduce-mla.ll
    M llvm/test/CodeGen/Thumb2/mve-vecreduce-mlapred.ll

  Log Message:
  -----------
  [ARM] Turn sext_inreg(VGetLaneu) into VGetLaneu

This adds a DAG combine for converting sext_inreg of VGetLaneu into
VGetLanes, providing the types match correctly.

Differential Revision: https://reviews.llvm.org/D95073