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from 4000c17fc9b Add a map_range function for applying map_iterator to a range. new daecbabf55c Reapply "GlobalISel: Avoid producing Illegal copies in RegB [...] new 34a27682ed0 [InstCombine] Add tests to show missing fold opportunity fo [...]
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Summary of changes: include/llvm/CodeGen/GlobalISel/RegisterBankInfo.h | 6 + lib/CodeGen/GlobalISel/RegisterBankInfo.cpp | 30 ++- lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp | 74 ++++++- .../GlobalISel/regbankselect-illegal-copy.mir | 18 ++ .../AMDGPU/GlobalISel/regbankselect-phi.mir | 166 +++++++++++--- .../GlobalISel/regbankselect-reg-sequence.mir | 4 +- .../InstCombine/lshr-and-negC-icmpeq-zero.ll | 238 ++++++++++++++++++++ .../InstCombine/lshr-and-signbit-icmpeq-zero.ll | 236 ++++++++++++++++++++ .../InstCombine/shl-and-negC-icmpeq-zero.ll | 237 ++++++++++++++++++++ .../InstCombine/shl-and-signbit-icmpeq-zero.ll | 237 ++++++++++++++++++++ .../InstCombine/signbit-lshr-and-icmpeq-zero.ll | 242 ++++++++++++++++++++ .../InstCombine/signbit-shl-and-icmpeq-zero.ll | 244 +++++++++++++++++++++ 12 files changed, 1697 insertions(+), 35 deletions(-) create mode 100644 test/CodeGen/AMDGPU/GlobalISel/regbankselect-illegal-copy.mir create mode 100644 test/Transforms/InstCombine/lshr-and-negC-icmpeq-zero.ll create mode 100644 test/Transforms/InstCombine/lshr-and-signbit-icmpeq-zero.ll create mode 100644 test/Transforms/InstCombine/shl-and-negC-icmpeq-zero.ll create mode 100644 test/Transforms/InstCombine/shl-and-signbit-icmpeq-zero.ll create mode 100644 test/Transforms/InstCombine/signbit-lshr-and-icmpeq-zero.ll create mode 100644 test/Transforms/InstCombine/signbit-shl-and-icmpeq-zero.ll