[all-commits] [llvm/llvm-project] 6b8d65: [flang] remove -f[no-]alias-analysis (#74343)

[Tom Eccles via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6b8d659062a0f9a7daa641432701dc6996939dc5
      https://github.com/llvm/llvm-project/commit/6b8d659062a0f9a7daa641432701dc6996939dc5
  Author: Tom Eccles <tom.eccles at arm.com>
  Date:   2023-12-05 (Tue, 05 Dec 2023)

  Changed paths:
    M clang/include/clang/Driver/Options.td
    M clang/lib/Driver/ToolChains/Flang.cpp
    M flang/lib/Frontend/CompilerInvocation.cpp
    M flang/test/Driver/driver-help-hidden.f90
    M flang/test/Driver/driver-help.f90
    M flang/test/Driver/falias-analysis.f90

  Log Message:
  -----------
  [flang] remove -f[no-]alias-analysis (#74343)

Now that tbaa tags pass is enabled by default, I would like to remove
these flags. `-fno-alias-analysis` was originally intended to be useful
for debugging, but as it also disables tbaa tag generation in codegen,
it turned out to be too noisy.

@banach-space expressed that these flags felt too non-standard.

The tbaa tags pass can be toggled using `-mllvm
-disable-fir-alias-tags=0`