Skip to content

[Flang] Add option to disable adding alias tags #193

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: amd-trunk-dev
Choose a base branch
from
Open

[Flang] Add option to disable adding alias tags #193

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions clang/include/clang/Driver/Options.td
View file
Original file line number Diff line number Diff line change
@@ -6842,6 +6842,10 @@ def fno_automatic : Flag<["-"], "fno-automatic">, Group<f_Group>,
defm stack_arrays : BoolOptionWithoutMarshalling<"f", "stack-arrays",
PosFlag<SetTrue, [], [ClangOption], "Attempt to allocate array temporaries on the stack, no matter their size">,
NegFlag<SetFalse, [], [ClangOption], "Allocate array temporaries on the heap (default)">>;

def fno_add_alias_tags : Flag<["-"], "fno-add-alias-tags">, Group<f_Group>,
HelpText<"Disable adding alias tags">;

defm loop_versioning : BoolOptionWithoutMarshalling<"f", "version-loops-for-stride",
PosFlag<SetTrue, [], [ClangOption], "Create unit-strided versions of loops">,
NegFlag<SetFalse, [], [ClangOption], "Do not create unit-strided loops (default)">>;
3 changes: 3 additions & 0 deletions clang/lib/Driver/ToolChains/Flang.cpp
View file
Original file line number Diff line number Diff line change
@@ -148,6 +148,9 @@ void Flang::addCodegenOptions(const ArgList &Args,
if (shouldLoopVersion(Args))
CmdArgs.push_back("-fversion-loops-for-stride");

if (Args.getLastArg(options::OPT_fno_add_alias_tags))
CmdArgs.push_back("-fno-add-alias-tags");

Args.addAllArgs(CmdArgs, {options::OPT_flang_experimental_hlfir,
options::OPT_flang_deprecated_no_hlfir,
options::OPT_flang_experimental_integer_overflow,
6 changes: 4 additions & 2 deletions flang/lib/Frontend/CompilerInvocation.cpp
View file
Original file line number Diff line number Diff line change
@@ -271,8 +271,10 @@ static void parseCodeGenArgs(Fortran::frontend::CodeGenOptions &opts,
if (args.hasFlag(clang::driver::options::OPT_floop_versioning,
clang::driver::options::OPT_fno_loop_versioning, false))
opts.LoopVersioning = 1;

opts.AliasAnalysis = opts.OptimizationLevel > 0;
if (args.getLastArg(clang::driver::options::OPT_fno_add_alias_tags))
opts.AliasAnalysis = false;
else
opts.AliasAnalysis = opts.OptimizationLevel > 0;

// -mframe-pointer=none/non-leaf/all option.
if (const llvm::opt::Arg *a =