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from 16952fe9058 Use perfect forwarding to deduplicate code in unit test. NFC. new d5ae6a3f71c [x86][eflags] Fix PR37431 by teaching the EFLAGS copy lower [...] new 1b9c9435361 [llvm-mca] Introduce a pipeline Stage class and FetchStage. new 91518dd4d4f Nios2: Unbreak build.

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Summary of changes: lib/Target/Nios2/MCTargetDesc/Nios2AsmBackend.cpp | 6 +- lib/Target/Nios2/MCTargetDesc/Nios2MCTargetDesc.h | 5 +- lib/Target/X86/X86FlagsCopyLowering.cpp | 145 +++++++++++++++++++++- test/CodeGen/X86/copy-eflags.ll | 59 +++++++++ test/CodeGen/X86/flags-copy-lowering.mir | 71 +++++++++++ tools/llvm-mca/Backend.cpp | 18 +-- tools/llvm-mca/Backend.h | 49 ++++---- tools/llvm-mca/CMakeLists.txt | 2 + tools/llvm-mca/Dispatch.cpp | 7 +- tools/llvm-mca/FetchStage.cpp | 38 ++++++ tools/llvm-mca/FetchStage.h | 47 +++++++ tools/llvm-mca/Instruction.h | 1 + tools/llvm-mca/{HWEventListener.cpp => Stage.cpp} | 17 ++- tools/llvm-mca/Stage.h | 55 ++++++++ tools/llvm-mca/llvm-mca.cpp | 10 +- 15 files changed, 478 insertions(+), 52 deletions(-) create mode 100644 tools/llvm-mca/FetchStage.cpp create mode 100644 tools/llvm-mca/FetchStage.h copy tools/llvm-mca/{HWEventListener.cpp => Stage.cpp} (50%) create mode 100644 tools/llvm-mca/Stage.h