[PATCH] D46907: [llvm-mca] Introduce a sequential container of Stages

[Matt Davis via Phabricator via llvm-commits]

mattd updated this revision to Diff 152399.
mattd added a comment.

This change lifts the component initialization (stages and simulated hardware bits) out of Backend and into llvm-mca.  That code will eventually be exposed as initializeDefaultPipeline. This patch removes the ownership of the simulated hardware pieces (Scheduler, RegisterFile, etc) from the Backend.  Now a user can create stages using the simulated hardware components without having to enforce that the Backend own those components.  That happens to simplify pipeline construction; however, we'll eventually need to pass ownership of the hardware with the stages.  But for now,  the patch just decouples hardware, stages, and the backend.


https://reviews.llvm.org/D46907

Files:
  tools/llvm-mca/Backend.cpp
  tools/llvm-mca/Backend.h
  tools/llvm-mca/DispatchStage.h
  tools/llvm-mca/ExecuteStage.cpp
  tools/llvm-mca/ExecuteStage.h
  tools/llvm-mca/FetchStage.cpp
  tools/llvm-mca/FetchStage.h
  tools/llvm-mca/RetireStage.h
  tools/llvm-mca/Stage.h
  tools/llvm-mca/llvm-mca.cpp

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