[PATCH] D93586: [InstCombine] use poison as placeholder for undemanded elems

[Juneyoung Lee via Phabricator via llvm-commits]

aqjune updated this revision to Diff 313645.
aqjune added a comment.

Rebase after adding poison tests
(rGdb7a2f347f13 <https://reviews.llvm.org/rGdb7a2f347f132b3920415013d62d1adfb18d8d58> , rG303654724896 <https://reviews.llvm.org/rG3036547248966a7cfc376eed41a0d2d1e9014348>)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D93586/new/

https://reviews.llvm.org/D93586

Files:
  clang/test/CodeGen/SystemZ/builtins-systemz-zvector-constrained.c
  clang/test/CodeGen/SystemZ/builtins-systemz-zvector.c
  clang/test/CodeGen/SystemZ/builtins-systemz-zvector2-constrained.c
  clang/test/CodeGen/SystemZ/builtins-systemz-zvector2.c
  llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
  llvm/test/CodeGen/AMDGPU/vector-alloca-bitcast.ll
  llvm/test/Transforms/InstCombine/AArch64/tbl1.ll
  llvm/test/Transforms/InstCombine/ARM/tbl1.ll
  llvm/test/Transforms/InstCombine/X86/clmulqdq.ll
  llvm/test/Transforms/InstCombine/X86/x86-addsub-inseltpoison.ll
  llvm/test/Transforms/InstCombine/X86/x86-addsub.ll
  llvm/test/Transforms/InstCombine/X86/x86-avx512-inseltpoison.ll
  llvm/test/Transforms/InstCombine/X86/x86-avx512.ll
  llvm/test/Transforms/InstCombine/X86/x86-insertps.ll
  llvm/test/Transforms/InstCombine/X86/x86-masked-memops.ll
  llvm/test/Transforms/InstCombine/X86/x86-muldq.ll
  llvm/test/Transforms/InstCombine/X86/x86-pack-inseltpoison.ll
  llvm/test/Transforms/InstCombine/X86/x86-pack.ll
  llvm/test/Transforms/InstCombine/X86/x86-pshufb.ll
  llvm/test/Transforms/InstCombine/X86/x86-sse-inseltpoison.ll
  llvm/test/Transforms/InstCombine/X86/x86-sse.ll
  llvm/test/Transforms/InstCombine/X86/x86-sse2-inseltpoison.ll
  llvm/test/Transforms/InstCombine/X86/x86-sse2.ll
  llvm/test/Transforms/InstCombine/X86/x86-sse41-inseltpoison.ll
  llvm/test/Transforms/InstCombine/X86/x86-sse41.ll
  llvm/test/Transforms/InstCombine/X86/x86-sse4a.ll
  llvm/test/Transforms/InstCombine/X86/x86-vec_demanded_elts-inseltpoison.ll
  llvm/test/Transforms/InstCombine/X86/x86-vec_demanded_elts.ll
  llvm/test/Transforms/InstCombine/X86/x86-vector-shifts-inseltpoison.ll
  llvm/test/Transforms/InstCombine/X86/x86-vector-shifts.ll
  llvm/test/Transforms/InstCombine/X86/x86-vpermil.ll
  llvm/test/Transforms/InstCombine/X86/x86-xop-inseltpoison.ll
  llvm/test/Transforms/InstCombine/X86/x86-xop.ll
  llvm/test/Transforms/InstCombine/bitcast-bigendian.ll
  llvm/test/Transforms/InstCombine/bitcast-inseltpoison.ll
  llvm/test/Transforms/InstCombine/bitcast-vec-canon-inseltpoison.ll
  llvm/test/Transforms/InstCombine/bitcast-vec-canon.ll
  llvm/test/Transforms/InstCombine/bitcast.ll
  llvm/test/Transforms/InstCombine/broadcast-inseltpoison.ll
  llvm/test/Transforms/InstCombine/broadcast.ll
  llvm/test/Transforms/InstCombine/cast.ll
  llvm/test/Transforms/InstCombine/getelementptr.ll
  llvm/test/Transforms/InstCombine/insert-const-shuf.ll
  llvm/test/Transforms/InstCombine/insert-extract-shuffle-inseltpoison.ll
  llvm/test/Transforms/InstCombine/insert-extract-shuffle.ll
  llvm/test/Transforms/InstCombine/masked_intrinsics-inseltpoison.ll
  llvm/test/Transforms/InstCombine/masked_intrinsics.ll
  llvm/test/Transforms/InstCombine/minmax-fold.ll
  llvm/test/Transforms/InstCombine/pr2645-0.ll
  llvm/test/Transforms/InstCombine/shuffle_select.ll
  llvm/test/Transforms/InstCombine/shufflevector-div-rem-inseltpoison.ll
  llvm/test/Transforms/InstCombine/shufflevector-div-rem.ll
  llvm/test/Transforms/InstCombine/sub-of-negatible.ll
  llvm/test/Transforms/InstCombine/trunc.ll
  llvm/test/Transforms/InstCombine/vec_demanded_elts-inseltpoison.ll
  llvm/test/Transforms/InstCombine/vec_demanded_elts.ll
  llvm/test/Transforms/InstCombine/vec_shuffle-inseltpoison.ll
  llvm/test/Transforms/InstCombine/vec_shuffle.ll
  llvm/test/Transforms/InstCombine/vector-casts-inseltpoison.ll
  llvm/test/Transforms/InstCombine/vector-casts.ll
  llvm/test/Transforms/InstCombine/vector_insertelt_shuffle-inseltpoison.ll
  llvm/test/Transforms/InstCombine/vector_insertelt_shuffle.ll
  llvm/test/Transforms/LoopVectorize/X86/invariant-load-gather.ll
  llvm/test/Transforms/LoopVectorize/induction.ll
  llvm/test/Transforms/LoopVectorize/reduction-inloop-pred.ll
  llvm/test/Transforms/LoopVectorize/reduction-inloop.ll
  llvm/test/Transforms/PhaseOrdering/X86/horiz-math-inseltpoison.ll
  llvm/test/Transforms/PhaseOrdering/X86/horiz-math.ll
  llvm/test/Transforms/SLPVectorizer/AArch64/getelementptr.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-cast-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-cast.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-int-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/blending-shuffle-inseltpoison.ll

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