[all-commits] [llvm/llvm-project] caba03: [flang] Enable alias tags pass by default (#73111)

[Tom Eccles via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: caba0314cf631a3ba3e982cbcdc455224046c7a8
      https://github.com/llvm/llvm-project/commit/caba0314cf631a3ba3e982cbcdc455224046c7a8
  Author: Tom Eccles <tom.eccles at arm.com>
  Date:   2023-11-27 (Mon, 27 Nov 2023)

  Changed paths:
    M clang/lib/Driver/ToolChains/Flang.cpp
    M flang/include/flang/Tools/CLOptions.inc
    M flang/lib/Frontend/CompilerInvocation.cpp
    M flang/test/Driver/falias-analysis.f90
    M flang/test/Driver/mlir-pass-pipeline.f90
    M flang/test/Driver/optimization-remark.f90
    M flang/test/Fir/basic-program.fir
    M flang/tools/tco/tco.cpp

  Log Message:
  -----------
  [flang] Enable alias tags pass by default (#73111)

Enable by default for optimization levels higher than 0 (same behavior
as clang).

For simplicity, only forward the flag to the frontend driver when it
contradicts what is implied by the optimization level.

Since https://github.com/llvm/llvm-project/pull/72903 there are now no
known performance regressions.