[PATCH] D59995: [LV] Exclude loop-invariant inputs from scalar cost computation.

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
fhahn added reviewers: hsaito, rengolin, dcaballe.
Herald added subscribers: jdoerfert, rkruppe, hiraditya, javed.absar.
Herald added a project: LLVM.

Loop invariant operands do not need to be scalarized, as we are using
the values outside the loop. We should ignore them when computing the
scalarization overhead.

Fixes PR41294


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D59995

Files:
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/test/Transforms/LoopVectorize/AArch64/instructions-with-struct-ops.ll

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