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from 0ef69ab [SCEV] Cache results during GetMinTrailingZeros query new 2fce16a [X86][SSE] Allow matchVectorShuffleWithUNPCK to recognise UND [...] new 06f1a4b Reapply "[LV] Extend trunc optimization to all IVs with const [...]
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Summary of changes: lib/Target/X86/X86ISelLowering.cpp | 28 ++++++++--- lib/Transforms/Vectorize/LoopVectorize.cpp | 57 ++++++++++++++++++---- test/CodeGen/X86/vector-shuffle-combining-avx2.ll | 2 - test/CodeGen/X86/vector-shuffle-combining-ssse3.ll | 24 +++------ .../LoopVectorize/AArch64/induction-trunc.ll | 30 ++++++++++++ test/Transforms/LoopVectorize/induction.ll | 31 ++++++++++++ test/Transforms/LoopVectorize/reverse_iter.ll | 5 +- 7 files changed, 138 insertions(+), 39 deletions(-) create mode 100644 test/Transforms/LoopVectorize/AArch64/induction-trunc.ll