[PATCH] D78081: [InstCombine][SVE] Fix visitGetElementPtrInst for scalable type.

[Huihui Zhang via Phabricator via llvm-commits]

huihuiz created this revision.
huihuiz added reviewers: sdesmalen, efriedma, spatel, ctetreau.
huihuiz added a project: LLVM.
Herald added subscribers: psnobl, rkruppe, hiraditya, tschuett.

This patch fix the following issues in InstCombiner::visitGetElementPtrInst

1. Skip for scalable type if transformation requires fixed size number of vector element.
2. Skip for scalable type if transformation relies on compile-time known type alloc size.
3. Use VectorType::getElementCount when scalable property is used to construct new VectorType.
4. Explicitly call TypeSize::getFixedSize to avoid implicit type conversion to uint64_t.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D78081

Files:
  llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
  llvm/test/Transforms/InstCombine/vscale_gep.ll

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