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from cf5da38c843 [InstCombine] clean up matchDeMorgansLaws(); NFCI new a4fa9d3a636 [AArch64] Consider widening instructions in cost calculations new 14cb3039db0 DAGCombine: Combine shuffles of splat-shuffles
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Summary of changes: lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 54 ++ lib/Target/AArch64/AArch64Subtarget.h | 3 + lib/Target/AArch64/AArch64TargetTransformInfo.cpp | 106 +++- lib/Target/AArch64/AArch64TargetTransformInfo.h | 3 + lib/Transforms/Vectorize/SLPVectorizer.cpp | 10 +- .../CostModel/AArch64/free-widening-casts.ll | 622 +++++++++++++++++++++ test/CodeGen/X86/shuffle-of-splat-multiuses.ll | 34 +- 7 files changed, 804 insertions(+), 28 deletions(-) create mode 100644 test/Analysis/CostModel/AArch64/free-widening-casts.ll