[PATCH] D105094: [PowerPC] Fix i64 to vector lowering on big endian

[Qiu Chaofan via Phabricator via llvm-commits]

qiucf created this revision.
qiucf added reviewers: PowerPC, jsji, nemanjai, shchenz.
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Lowering for scalar to vector would skip if current subtarget is big endian and the scalar is larger or equal than 64 bits. However there's some issue in implementation that `SToVRHS` may refer to `SToVLHS`'s scalar size if `SToVLHS` is present, which leads to some crash.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105094

Files:
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  llvm/test/CodeGen/PowerPC/p8-scalar_vector_conversions.ll

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