[PATCH] D107751: [IR] Let ConstantVector::getSplat use poison instead of undef

[David Sherwood via Phabricator via llvm-commits]

david-arm created this revision.
david-arm added reviewers: sdesmalen, lebedev.ri, nikic, spatel, aqjune.
Herald added subscribers: dexonsmith, hiraditya.
david-arm requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

This patch updates ConstantVector::getSplat to use poison instead
of undef when using insertelement/shufflevector to splat.

This follows on from D93793 <https://reviews.llvm.org/D93793>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D107751

Files:
  llvm/lib/IR/Constants.cpp
  llvm/test/Transforms/CodeGenPrepare/AArch64/gather-scatter-opt-inseltpoison.ll
  llvm/test/Transforms/CodeGenPrepare/AArch64/gather-scatter-opt.ll
  llvm/test/Transforms/InstCombine/div.ll
  llvm/test/Transforms/InstCombine/fdiv.ll
  llvm/test/Transforms/InstCombine/fmul.ll
  llvm/test/Transforms/InstCombine/select.ll
  llvm/test/Transforms/InstCombine/sub.ll
  llvm/test/Transforms/InstCombine/zext-ctlz-trunc-to-ctlz-add.ll
  llvm/test/Transforms/InstSimplify/ConstProp/vscale-inseltpoison.ll
  llvm/test/Transforms/InstSimplify/ConstProp/vscale.ll
  llvm/test/Transforms/InstSimplify/cmp-vec-fast-path.ll
  llvm/test/Transforms/InstSimplify/gep.ll
  llvm/test/Transforms/InstSimplify/vscale-inseltpoison.ll
  llvm/test/Transforms/InstSimplify/vscale.ll
  llvm/test/Transforms/LoopVectorize/AArch64/first-order-recurrence.ll
  llvm/test/Transforms/LoopVectorize/AArch64/scalable-strict-fadd.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-gather-scatter.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-widen-phi.ll
  llvm/test/Transforms/LoopVectorize/scalable-first-order-recurrence.ll
  llvm/test/Transforms/LoopVectorize/scalable-inductions.ll

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