[PATCH] D94928: [llvm-mca] Add support for in-order CPUs

[Andrew Savonichev via Phabricator via llvm-commits]

asavonic created this revision.
Herald added subscribers: gbedwell, hiraditya, kristof.beyls, mgorny.
Herald added a reviewer: andreadb.
asavonic requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

This patch adds a simplified pipeline to support in-order CPUs such as
ARM Cortex-A55.

In-order pipeline implements a simplified version of Dispatch,
Scheduler and Execute stages as a single stage. Entry and Retire
stages are shared for both in-order and out-of-order pipelines.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D94928

Files:
  llvm/include/llvm/MCA/HardwareUnits/RegisterFile.h
  llvm/include/llvm/MCA/Stages/InOrderIssueStage.h
  llvm/include/llvm/MCA/Stages/RetireStage.h
  llvm/lib/MCA/CMakeLists.txt
  llvm/lib/MCA/Context.cpp
  llvm/lib/MCA/Stages/InOrderIssueStage.cpp
  llvm/lib/MCA/Stages/RetireStage.cpp
  llvm/test/tools/llvm-mca/AArch64/Cortex/A55-add-sequence.s
  llvm/test/tools/llvm-mca/AArch64/Cortex/A55-all-stats.s
  llvm/test/tools/llvm-mca/AArch64/Cortex/A55-all-views.s
  llvm/test/tools/llvm-mca/X86/in-order-cpu.s
  llvm/tools/llvm-mca/llvm-mca.cpp

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