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from 6ec46896176 Revert "[x86] split 256-bit store of concatenated vectors" new 63a33580333 [DAGCombiner][X86][AArch64][AMDGPU] (x + C) - y -> (x - y [...] new 7728af49e56 [DAGCombiner][X86][AArch64][SPARC][SystemZ] y - (x + C) -> [...] new 5188cc4e065 [DAGCombiner][X86][AArch64] (x - C) + y -> (x + y) - C fold new 6f9cfda93b4 [DAGCombine][X86][AArch64][AMDGPU] (x - y) + -1 -> add (x [...] new 247b7e930a9 [DAGCombine] (x - C) - y -> (x - y) - C fold

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Summary of changes: lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 42 ++++++++++++++ test/CodeGen/AArch64/shift-amount-mod.ll | 10 ++-- test/CodeGen/AArch64/sink-addsub-of-const.ll | 36 ++++++------ test/CodeGen/AArch64/xor.ll | 18 +++--- test/CodeGen/AMDGPU/llvm.amdgcn.s.barrier.ll | 14 ++--- test/CodeGen/SPARC/2013-05-17-CallFrame.ll | 5 +- test/CodeGen/SystemZ/alloca-03.ll | 11 ++-- test/CodeGen/X86/combine-add.ll | 4 +- test/CodeGen/X86/ragreedy-hoist-spill.ll | 83 ++++++++++++++-------------- test/CodeGen/X86/shift-amount-mod.ll | 9 +-- test/CodeGen/X86/sink-addsub-of-const.ll | 64 ++++++++++----------- test/CodeGen/X86/vector-idiv-sdiv-128.ll | 20 +++---- test/CodeGen/X86/vector-idiv-sdiv-256.ll | 16 +++--- test/CodeGen/X86/vector-idiv-sdiv-512.ll | 12 ++-- test/CodeGen/X86/xor.ll | 62 +++++++++++---------- test/CodeGen/X86/zext-sext.ll | 21 +++---- 16 files changed, 231 insertions(+), 196 deletions(-)