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from ea7454bc069 [ARM] Some Thumb2ITBlock clean ups. NFC new 4f2ff6f3f77 AMDGPU/GlobalISel: RegBankSelect for amdgcn.div.scale new 882e3691431 AMDGPU: Fix iterator crash in AMDGPUPromoteAlloca new 09e40fba682 AMDGPU: Remove unnecessary check for virtual register new ccd9c0a5d7f AMDGPU: Fold readlane from copy of SGPR or imm

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Summary of changes: lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp | 14 +- lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp | 14 ++ lib/Target/AMDGPU/SIFoldOperands.cpp | 56 +++-- lib/Target/AMDGPU/SIInstructions.td | 7 + .../GlobalISel/regbankselect-amdgcn.div.scale.mir | 67 ++++++ test/CodeGen/AMDGPU/fold-readlane.mir | 250 +++++++++++++++++++++ test/CodeGen/AMDGPU/llvm.amdgcn.readfirstlane.ll | 50 ++++- test/CodeGen/AMDGPU/llvm.amdgcn.readlane.ll | 46 +++- test/CodeGen/AMDGPU/promote-alloca-lifetime.ll | 28 ++- 9 files changed, 486 insertions(+), 46 deletions(-) create mode 100644 test/CodeGen/AMDGPU/GlobalISel/regbankselect-amdgcn.div.scale.mir create mode 100644 test/CodeGen/AMDGPU/fold-readlane.mir