[all-commits] [llvm/llvm-project] bcc83a: [MCA] Use LSU for the in-order pipeline

[Andrew Savonichev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bcc83a2e83215f998533582b55522a6e8752d899
      https://github.com/llvm/llvm-project/commit/bcc83a2e83215f998533582b55522a6e8752d899
  Author: Andrew Savonichev <andrew.savonichev at gmail.com>
  Date:   2021-07-29 (Thu, 29 Jul 2021)

  Changed paths:
    M llvm/include/llvm/MCA/Stages/InOrderIssueStage.h
    M llvm/lib/MCA/Context.cpp
    M llvm/lib/MCA/Stages/InOrderIssueStage.cpp
    M llvm/test/tools/llvm-mca/AArch64/Cortex/A55-load-store-alias.s
    A llvm/test/tools/llvm-mca/AArch64/Cortex/A55-load-store-noalias.s

  Log Message:
  -----------
  [MCA] Use LSU for the in-order pipeline

Load/Store unit is used to enforce order of loads and stores if they
alias (controlled by --noalias=false option).

Fixes PR50483 - [MCA] In-order pipeline doesn't track memory
load/store dependencies.

Differential Revision: https://reviews.llvm.org/D103955