[PATCH] D150900: [InstCombine] Insert a bitcast to enable merging similar store insts

[Anshil Gandhi via Phabricator via llvm-commits]

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Given two Store instructions with equivalent pointer operands,
they could be merged into their common successor basic block if
the value operand of one is bitcasted to match the type of the
other. This patch only allows a bitcast between non-aggregate
primitive types with matching bitwidths.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D150900

Files:
  llvm/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
  llvm/test/Transforms/InstCombine/merging-multiple-stores-into-successor.ll
  llvm/test/Transforms/InstCombine/store.ll
  llvm/test/Transforms/LoopVectorize/invariant-store-vectorization.ll

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