[PATCH] D74976: [CostModel][X86] Improve extract/insert element costs (PR43605)

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon created this revision.
RKSimon added reviewers: spatel, craig.topper, lebedev.ri, andreadb.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

This tries to improve the accuracy of extract/insert element costs by accounting for subvector extraction/insertion for >128-bit vectors and the shuffling of elements to/from the 0'th index.

It also adds PINSR/PEXTR costs for integer types (at the moment we assume the same cost as MOVD/MOVQ - which isn't always true).


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D74976

Files:
  llvm/lib/Target/X86/X86TargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/X86/arith-fp.ll
  llvm/test/Analysis/CostModel/X86/extend.ll
  llvm/test/Analysis/CostModel/X86/fptosi.ll
  llvm/test/Analysis/CostModel/X86/fptoui.ll
  llvm/test/Analysis/CostModel/X86/fround.ll
  llvm/test/Analysis/CostModel/X86/insert-extract-at-zero.ll
  llvm/test/Analysis/CostModel/X86/intrinsic-cost.ll
  llvm/test/Analysis/CostModel/X86/load_store.ll
  llvm/test/Analysis/CostModel/X86/masked-intrinsic-cost.ll
  llvm/test/Analysis/CostModel/X86/shuffle-extract_subvector.ll
  llvm/test/Analysis/CostModel/X86/shuffle-insert_subvector.ll
  llvm/test/Analysis/CostModel/X86/sitofp.ll
  llvm/test/Analysis/CostModel/X86/uitofp.ll
  llvm/test/Analysis/CostModel/X86/vector-extract.ll
  llvm/test/Analysis/CostModel/X86/vector-insert.ll
  llvm/test/Transforms/LoopVectorize/X86/interleaving.ll
  llvm/test/Transforms/LoopVectorize/X86/strided_load_cost.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-cast.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-fp.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-int.ll
  llvm/test/Transforms/SLPVectorizer/X86/commutativity.ll
  llvm/test/Transforms/SLPVectorizer/X86/extract_in_tree_user.ll
  llvm/test/Transforms/SLPVectorizer/X86/hadd.ll
  llvm/test/Transforms/SLPVectorizer/X86/hsub.ll
  llvm/test/Transforms/SLPVectorizer/X86/insert-element-build-vector.ll
  llvm/test/Transforms/SLPVectorizer/X86/load-merge.ll
  llvm/test/Transforms/SLPVectorizer/X86/minimum-sizes.ll
  llvm/test/Transforms/SLPVectorizer/X86/pr35497.ll
  llvm/test/Transforms/SLPVectorizer/X86/remark_horcost.ll
  llvm/test/Transforms/SLPVectorizer/X86/resched.ll
  llvm/test/Transforms/SLPVectorizer/X86/sext.ll
  llvm/test/Transforms/SLPVectorizer/X86/zext.ll