[PATCH] D87502: [DAGCombiner] Use known bits to fold extract_vector_elt with const index

[Jay Foad via Phabricator via llvm-commits]

foad created this revision.
foad added reviewers: RKSimon, nikic, craig.topper, spatel.
Herald added subscribers: llvm-commits, ecnelises, kerbowa, dmgreen, arphaman, atanasyan, jrtc27, hiraditya, nhaehnle, jvesely, nemanjai, sdardis.
Herald added a project: LLVM.
foad requested review of this revision.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D87502

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/AArch64/arm64-build-vector.ll
  llvm/test/CodeGen/AArch64/arm64-promote-const-complex-initializers.ll
  llvm/test/CodeGen/AArch64/dag-numsignbits.ll
  llvm/test/CodeGen/AArch64/popcount.ll
  llvm/test/CodeGen/AMDGPU/fptoui.f16.ll
  llvm/test/CodeGen/AMDGPU/shift-i128.ll
  llvm/test/CodeGen/AMDGPU/sub.v2i16.ll
  llvm/test/CodeGen/ARM/func-argpassing-endian.ll
  llvm/test/CodeGen/Mips/cconv/vector.ll
  llvm/test/CodeGen/PowerPC/pr45709.ll
  llvm/test/CodeGen/Thumb2/mve-vecreduce-add.ll
  llvm/test/CodeGen/Thumb2/mve-vecreduce-addpred.ll
  llvm/test/CodeGen/Thumb2/mve-vecreduce-mla.ll
  llvm/test/CodeGen/Thumb2/mve-vecreduce-mlapred.ll
  llvm/test/CodeGen/Thumb2/mve-zext-masked-load.ll
  llvm/test/CodeGen/X86/2011-10-19-widen_vselect.ll
  llvm/test/CodeGen/X86/2012-07-10-extload64.ll
  llvm/test/CodeGen/X86/fold-load-vec.ll
  llvm/test/CodeGen/X86/madd.ll
  llvm/test/CodeGen/X86/nontemporal-3.ll
  llvm/test/CodeGen/X86/pr41619.ll
  llvm/test/CodeGen/X86/vec_zero_cse.ll
  llvm/test/CodeGen/X86/vector-fshl-128.ll
  llvm/test/CodeGen/X86/vector-fshl-rot-128.ll
  llvm/test/CodeGen/X86/vector-fshr-128.ll
  llvm/test/CodeGen/X86/vector-fshr-rot-128.ll
  llvm/test/CodeGen/X86/vector-shuffle-combining.ll
  llvm/test/CodeGen/X86/vector-trunc-math.ll
  llvm/test/CodeGen/X86/widen_shuffle-1.ll

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