https://github.com/JDPailleux updated
https://github.com/llvm/llvm-project/pull/127605
>From 2adb56dc7e3bb71a854b438a99266ab9711340ef Mon Sep 17 00:00:00 2001
From: Jean-Didier Pailleux <jean-didier.paill...@sipearl.com>
Date: Tue, 18 Feb 2025 10:12:32 +0100
Subject: [PATCH] [flang][Driver] Add support of -fd-lines-as-comments and
-fd-lines-as-code flags
---
clang/include/clang/Driver/Options.td | 14 +++++++++--
clang/lib/Driver/ToolChains/Flang.cpp | 2 ++
flang/lib/Frontend/CompilerInvocation.cpp | 26 ++++++++++++++++++++
flang/test/Driver/fd-lines-as.f90 | 29 +++++++++++++++++++++++
4 files changed, 69 insertions(+), 2 deletions(-)
create mode 100644 flang/test/Driver/fd-lines-as.f90
diff --git a/clang/include/clang/Driver/Options.td
b/clang/include/clang/Driver/Options.td
index 5ad187926e710..a841004391e6f 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -6747,8 +6747,18 @@ defm backtrace : BooleanFFlag<"backtrace">,
Group<gfortran_Group>;
defm bounds_check : BooleanFFlag<"bounds-check">, Group<gfortran_Group>;
defm check_array_temporaries : BooleanFFlag<"check-array-temporaries">,
Group<gfortran_Group>;
defm cray_pointer : BooleanFFlag<"cray-pointer">, Group<gfortran_Group>;
-defm d_lines_as_code : BooleanFFlag<"d-lines-as-code">, Group<gfortran_Group>;
-defm d_lines_as_comments : BooleanFFlag<"d-lines-as-comments">,
Group<gfortran_Group>;
+defm d_lines_as_code
+ : BooleanFFlag<"d-lines-as-code">,
+ HelpText<"In fixed form, with lines beginning with 'd' or 'D', the first
"
+ "column will be treated as if it contained a blank.">,
+ Group<gfortran_Group>,
+ Visibility<[FlangOption, FC1Option]>;
+defm d_lines_as_comments
+ : BooleanFFlag<"d-lines-as-comments">,
+ HelpText<"In fixed form, with lines beginning with 'd' or 'D', the lines
"
+ "will be treated as a comment.">,
+ Group<gfortran_Group>,
+ Visibility<[FlangOption, FC1Option]>;
defm dollar_ok : BooleanFFlag<"dollar-ok">, Group<gfortran_Group>;
defm dump_fortran_optimized : BooleanFFlag<"dump-fortran-optimized">,
Group<gfortran_Group>;
defm dump_fortran_original : BooleanFFlag<"dump-fortran-original">,
Group<gfortran_Group>;
diff --git a/clang/lib/Driver/ToolChains/Flang.cpp
b/clang/lib/Driver/ToolChains/Flang.cpp
index 9ad795edd724d..4c452491fa415 100644
--- a/clang/lib/Driver/ToolChains/Flang.cpp
+++ b/clang/lib/Driver/ToolChains/Flang.cpp
@@ -60,6 +60,8 @@ void Flang::addFortranDialectOptions(const ArgList &Args,
options::OPT_frealloc_lhs,
options::OPT_fno_realloc_lhs,
options::OPT_fsave_main_program,
+ options::OPT_fd_lines_as_code,
+ options::OPT_fd_lines_as_comments,
options::OPT_fno_save_main_program});
}
diff --git a/flang/lib/Frontend/CompilerInvocation.cpp
b/flang/lib/Frontend/CompilerInvocation.cpp
index f3d9432c62d3b..55283e1279f2f 100644
--- a/flang/lib/Frontend/CompilerInvocation.cpp
+++ b/flang/lib/Frontend/CompilerInvocation.cpp
@@ -957,6 +957,32 @@ static bool parseDialectArgs(CompilerInvocation &res,
llvm::opt::ArgList &args,
clang::DiagnosticsEngine &diags) {
unsigned numErrorsBefore = diags.getNumErrors();
+ // -fd-lines-as-code
+ if (args.hasArg(clang::driver::options::OPT_fd_lines_as_code)) {
+ if (res.getFrontendOpts().fortranForm == FortranForm::FreeForm) {
+ const auto fdLinesAsWarning = diags.getCustomDiagID(
+ clang::DiagnosticsEngine::Warning,
+ "‘-fd-lines-as-code’ has no effect in free form.");
+ diags.Report(fdLinesAsWarning);
+ } else {
+ res.getFrontendOpts().features.Enable(
+ Fortran::common::LanguageFeature::OldDebugLines, true);
+ }
+ }
+
+ // -fd-lines-as-comments
+ if (args.hasArg(clang::driver::options::OPT_fd_lines_as_comments)) {
+ if (res.getFrontendOpts().fortranForm == FortranForm::FreeForm) {
+ const auto fdLinesAsWarning = diags.getCustomDiagID(
+ clang::DiagnosticsEngine::Warning,
+ "‘-fd-lines-as-comments’ has no effect in free form.");
+ diags.Report(fdLinesAsWarning);
+ } else {
+ res.getFrontendOpts().features.Enable(
+ Fortran::common::LanguageFeature::OldDebugLines, false);
+ }
+ }
+
// -fdefault* family
if (args.hasArg(clang::driver::options::OPT_fdefault_real_8)) {
res.getDefaultKinds().set_defaultRealKind(8);
diff --git a/flang/test/Driver/fd-lines-as.f90
b/flang/test/Driver/fd-lines-as.f90
new file mode 100644
index 0000000000000..ea06a39378e28
--- /dev/null
+++ b/flang/test/Driver/fd-lines-as.f90
@@ -0,0 +1,29 @@
+! Ensure arguments -fd-lines-as-comments and -fd-lines-as-code as expected.
+
+!--------------------------
+! FLANG DRIVER (flang)
+!--------------------------
+! Default behavior is equivalent as -fd-lines-as-comments
+!--------------------------
+! RUN: %flang -fsyntax-only -ffixed-form %s 2>&1
+! RUN: %flang -fsyntax-only -ffixed-form -fd-lines-as-comments %s 2>&1
+! RUN: not %flang -fsyntax-only -ffixed-form -fd-lines-as-code %s 2>&1 |
FileCheck %s --check-prefix=CODE
+! RUN: not %flang -fsyntax-only -ffree-form -fd-lines-as-comments %s 2>&1 |
FileCheck %s --check-prefix=WARNING-COMMENTS
+! RUN: not %flang -fsyntax-only -ffree-form -fd-lines-as-code %s 2>&1 |
FileCheck %s --check-prefix=WARNING-CODE
+
+!----------------------------------------
+! FRONTEND FLANG DRIVER (flang -fc1)
+!----------------------------------------
+! RUN: %flang_fc1 -fsyntax-only -ffixed-form %s 2>&1
+! RUN: %flang_fc1 -fsyntax-only -ffixed-form -fd-lines-as-comments %s 2>&1
+! RUN: not %flang_fc1 -fsyntax-only -ffixed-form -fd-lines-as-code %s 2>&1 |
FileCheck %s --check-prefix=CODE
+! RUN: not %flang_fc1 -fsyntax-only -ffree-form -fd-lines-as-comments %s 2>&1
| FileCheck %s --check-prefix=WARNING-COMMENTS
+! RUN: not %flang_fc1 -fsyntax-only -ffree-form -fd-lines-as-code %s 2>&1 |
FileCheck %s --check-prefix=WARNING-CODE
+
+! CODE: Semantic errors
+! WARNING-COMMENTS: warning: ‘-fd-lines-as-comments’ has no effect in free
form.
+! WARNING-CODE: warning: ‘-fd-lines-as-code’ has no effect in free form.
+
+ program FixedForm
+d end
+ end
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
