[PATCH] D102939: [AArch64] Lower INSERT_SUBVECTOR to LD1_POST

[Andrew Savonichev via Phabricator via llvm-commits]

asavonic created this revision.
Herald added subscribers: danielkiss, hiraditya, kristof.beyls.
asavonic requested review of this revision.
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Before this patch, (insert_subvector (scalar_to_vector) lane) and an
ADD used to generate LDR + INS + ADD (or an offset for a subsequent
LDR). Now this is folded into a single LD1_POST instruction.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102939

Files:
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/test/CodeGen/AArch64/aarch64-load-ext.ll
  llvm/test/CodeGen/AArch64/sadd_sat_vec.ll
  llvm/test/CodeGen/AArch64/ssub_sat_vec.ll

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