[all-commits] [llvm/llvm-project] 1b1232: [FuncSpec] Replace LoopInfo with BlockFrequencyInfo.

[Alexandros Lamprineas via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1b1232047e83b69561fd64b9547cb0a0d374473a
      https://github.com/llvm/llvm-project/commit/1b1232047e83b69561fd64b9547cb0a0d374473a
  Author: Alexandros Lamprineas <alexandros.lamprineas at arm.com>
  Date:   2023-05-22 (Mon, 22 May 2023)

  Changed paths:
    M llvm/include/llvm/Transforms/IPO/FunctionSpecialization.h
    M llvm/include/llvm/Transforms/Utils/SCCPSolver.h
    M llvm/lib/Transforms/IPO/FunctionSpecialization.cpp
    M llvm/lib/Transforms/IPO/SCCP.cpp
    M llvm/lib/Transforms/Utils/SCCPSolver.cpp
    M llvm/test/Other/new-pm-defaults.ll
    M llvm/test/Other/new-pm-lto-defaults.ll
    M llvm/test/Other/new-pm-thinlto-postlink-defaults.ll
    M llvm/test/Other/new-pm-thinlto-postlink-pgo-defaults.ll
    M llvm/test/Other/new-pm-thinlto-postlink-samplepgo-defaults.ll
    M llvm/test/Transforms/FunctionSpecialization/function-specialization-always-inline.ll
    M llvm/test/Transforms/FunctionSpecialization/function-specialization-constant-integers.ll
    R llvm/test/Transforms/FunctionSpecialization/function-specialization-loop.ll
    M llvm/test/Transforms/FunctionSpecialization/function-specialization2.ll
    M llvm/test/Transforms/FunctionSpecialization/function-specialization3.ll

  Log Message:
  -----------
  [FuncSpec] Replace LoopInfo with BlockFrequencyInfo.

Using AvgLoopIters on any loop is too imprecise making the cost model
favor users inside loop nests regardless of the actual tripcount.

Differential Revision: https://reviews.llvm.org/D150375