[PATCH] D62890: Merge consecutive stores of vector elements before types are legalized

[Kai Luo via Phabricator via llvm-commits]

lkail created this revision.
lkail added reviewers: nemanjai, hfinkel, jsji, steven.zhang.
lkail added a project: LLVM.
Herald added subscribers: llvm-commits, kbarton, hiraditya.

Added a target hook to decide how many consecutive stores can be merged by specific target before types are legalized. This hook is triggered when no merges is found by enumerating legal vector types.


Repository:
  rL LLVM

https://reviews.llvm.org/D62890

Files:
  llvm/include/llvm/CodeGen/TargetLowering.h
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  llvm/lib/Target/PowerPC/PPCISelLowering.h
  llvm/test/CodeGen/PowerPC/extract-and-store.ll

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