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from 39e1a0dcf26 [SCEV][LSR] Prevent using undefined value in binops new 74295609318 [Codegen][X86][AArch64][ARM][PowerPC] Inc-of-add vs sub-of- [...] new d07ba468a43 [InstCombine] Y - ~X --> X + Y + 1 fold (PR42457)
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Summary of changes: include/llvm/CodeGen/TargetLowering.h | 10 + lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 31 ++ lib/Target/AArch64/AArch64ISelLowering.cpp | 5 + lib/Target/AArch64/AArch64ISelLowering.h | 2 + lib/Target/ARM/ARMISelLowering.cpp | 9 + lib/Target/ARM/ARMISelLowering.h | 3 + lib/Target/PowerPC/PPCISelLowering.cpp | 4 + lib/Target/PowerPC/PPCISelLowering.h | 2 + lib/Transforms/InstCombine/InstCombineAddSub.cpp | 6 + test/CodeGen/AArch64/inc-of-add.ll | 21 +- test/CodeGen/AArch64/sub-of-not.ll | 16 +- test/CodeGen/ARM/inc-of-add.ll | 117 ++--- test/CodeGen/ARM/sub-of-not.ll | 398 +++++++++-------- test/CodeGen/PowerPC/inc-of-add.ll | 401 +++++++++-------- test/CodeGen/PowerPC/sub-of-not.ll | 490 +++++++++++---------- test/CodeGen/X86/sub-of-not.ll | 96 ++-- .../InstCombine/fold-sub-of-not-to-inc-of-add.ll | 15 +- 17 files changed, 838 insertions(+), 788 deletions(-)