[Mlir-commits] [clang] [flang] [mlir] [clang][flang][mlir] Support -frecord-command-line option (PR #102975)
Tarun Prabhu
llvmlistbot at llvm.org
Mon Sep 16 12:28:55 PDT 2024
https://github.com/tarunprabhu updated https://github.com/llvm/llvm-project/pull/102975
>From 4a37cec543f30bb122bf14573fdec8302a0afa3e Mon Sep 17 00:00:00 2001
From: Tarun Prabhu <tarun.prabhu at gmail.com>
Date: Mon, 12 Aug 2024 14:32:08 -0600
Subject: [PATCH 1/3] [clang][flang][mlir] Support -frecord-command-line option
Add support for the -frecord-command-line option that will produce the
llvm.commandline metadata which will eventually be saved in the object file.
This behavior is also supported in clang. Some refactoring of the code in flang
to handle these command line options was carried out. The corresponding
-grecord-command-line option which saves the command line in the debug
information has not yet been enabled for flang.
---
clang/include/clang/Driver/Options.td | 14 ++--
clang/lib/Driver/CMakeLists.txt | 1 +
clang/lib/Driver/ToolChains/Clang.cpp | 48 ++----------
clang/lib/Driver/ToolChains/CommonUtils.cpp | 76 +++++++++++++++++++
clang/lib/Driver/ToolChains/CommonUtils.h | 44 +++++++++++
clang/lib/Driver/ToolChains/Flang.cpp | 15 ++++
flang/include/flang/Frontend/CodeGenOptions.h | 3 +
flang/include/flang/Lower/Bridge.h | 12 ++-
.../Optimizer/Dialect/Support/FIRContext.h | 6 ++
flang/lib/Frontend/CompilerInvocation.cpp | 6 ++
flang/lib/Frontend/FrontendActions.cpp | 2 +-
flang/lib/Lower/Bridge.cpp | 8 +-
.../Optimizer/Dialect/Support/FIRContext.cpp | 16 ++++
flang/test/Driver/frecord-command-line.f90 | 16 ++++
flang/test/Lower/record-command-line.f90 | 9 +++
flang/tools/bbc/CMakeLists.txt | 1 +
flang/tools/bbc/bbc.cpp | 10 ++-
.../mlir/Dialect/LLVMIR/LLVMDialect.td | 1 +
.../include/mlir/Target/LLVMIR/ModuleImport.h | 4 +
.../mlir/Target/LLVMIR/ModuleTranslation.h | 3 +
mlir/lib/Target/LLVMIR/ModuleImport.cpp | 19 +++++
mlir/lib/Target/LLVMIR/ModuleTranslation.cpp | 17 +++++
mlir/test/Target/LLVMIR/Import/commandline.ll | 6 ++
mlir/test/Target/LLVMIR/commandline.mlir | 6 ++
24 files changed, 284 insertions(+), 59 deletions(-)
create mode 100644 clang/lib/Driver/ToolChains/CommonUtils.cpp
create mode 100644 clang/lib/Driver/ToolChains/CommonUtils.h
create mode 100644 flang/test/Driver/frecord-command-line.f90
create mode 100644 flang/test/Lower/record-command-line.f90
create mode 100644 mlir/test/Target/LLVMIR/Import/commandline.ll
create mode 100644 mlir/test/Target/LLVMIR/commandline.mlir
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 7f123335ce8cfa..aebcb5f0fbef61 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -1994,16 +1994,18 @@ def fparse_all_comments : Flag<["-"], "fparse-all-comments">, Group<f_clang_Grou
Visibility<[ClangOption, CC1Option]>,
MarshallingInfoFlag<LangOpts<"CommentOpts.ParseAllComments">>;
def frecord_command_line : Flag<["-"], "frecord-command-line">,
- DocBrief<[{Generate a section named ".GCC.command.line" containing the clang
+ DocBrief<[{Generate a section named ".GCC.command.line" containing the
driver command-line. After linking, the section may contain multiple command
lines, which will be individually terminated by null bytes. Separate arguments
within a command line are combined with spaces; spaces and backslashes within an
argument are escaped with backslashes. This format differs from the format of
the equivalent section produced by GCC with the -frecord-gcc-switches flag.
This option is currently only supported on ELF targets.}]>,
- Group<f_clang_Group>;
+ Group<f_clang_Group>,
+ Visibility<[ClangOption, CLOption, DXCOption, FlangOption]>;
def fno_record_command_line : Flag<["-"], "fno-record-command-line">,
- Group<f_clang_Group>;
+ Group<f_clang_Group>,
+ Visibility<[ClangOption, CLOption, DXCOption, FlangOption]>;
def : Flag<["-"], "frecord-gcc-switches">, Alias<frecord_command_line>;
def : Flag<["-"], "fno-record-gcc-switches">, Alias<fno_record_command_line>;
def fcommon : Flag<["-"], "fcommon">, Group<f_Group>,
@@ -7138,6 +7140,9 @@ def mrelocation_model : Separate<["-"], "mrelocation-model">,
NormalizedValues<["Static", "PIC_", "ROPI", "RWPI", "ROPI_RWPI", "DynamicNoPIC"]>,
MarshallingInfoEnum<CodeGenOpts<"RelocationModel">, "PIC_">;
def debug_info_kind_EQ : Joined<["-"], "debug-info-kind=">;
+def record_command_line : Separate<["-"], "record-command-line">,
+ HelpText<"The string to embed in the .LLVM.command.line section.">,
+ MarshallingInfoString<CodeGenOpts<"RecordCommandLine">>;
} // let Visibility = [CC1Option, CC1AsOption, FC1Option]
@@ -7158,9 +7163,6 @@ def debugger_tuning_EQ : Joined<["-"], "debugger-tuning=">,
def dwarf_debug_flags : Separate<["-"], "dwarf-debug-flags">,
HelpText<"The string to embed in the Dwarf debug flags record.">,
MarshallingInfoString<CodeGenOpts<"DwarfDebugFlags">>;
-def record_command_line : Separate<["-"], "record-command-line">,
- HelpText<"The string to embed in the .LLVM.command.line section.">,
- MarshallingInfoString<CodeGenOpts<"RecordCommandLine">>;
def compress_debug_sections_EQ : Joined<["-", "--"], "compress-debug-sections=">,
HelpText<"DWARF debug sections compression type">, Values<"none,zlib,zstd">,
NormalizedValuesScope<"llvm::DebugCompressionType">, NormalizedValues<["None", "Zlib", "Zstd"]>,
diff --git a/clang/lib/Driver/CMakeLists.txt b/clang/lib/Driver/CMakeLists.txt
index 32a4378ab499fa..0b92077384e9bc 100644
--- a/clang/lib/Driver/CMakeLists.txt
+++ b/clang/lib/Driver/CMakeLists.txt
@@ -48,6 +48,7 @@ add_clang_library(clangDriver
ToolChains/BareMetal.cpp
ToolChains/Clang.cpp
ToolChains/CommonArgs.cpp
+ ToolChains/CommonUtils.cpp
ToolChains/CrossWindows.cpp
ToolChains/CSKYToolChain.cpp
ToolChains/Cuda.cpp
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 3fe4ce5d893b8d..7f7f837d116def 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -21,6 +21,7 @@
#include "Arch/VE.h"
#include "Arch/X86.h"
#include "CommonArgs.h"
+#include "CommonUtils.h"
#include "Hexagon.h"
#include "MSP430.h"
#include "PS4CPU.h"
@@ -94,24 +95,6 @@ static void CheckCodeGenerationOptions(const Driver &D, const ArgList &Args) {
<< "-static";
}
-// Add backslashes to escape spaces and other backslashes.
-// This is used for the space-separated argument list specified with
-// the -dwarf-debug-flags option.
-static void EscapeSpacesAndBackslashes(const char *Arg,
- SmallVectorImpl<char> &Res) {
- for (; *Arg; ++Arg) {
- switch (*Arg) {
- default:
- break;
- case ' ':
- case '\\':
- Res.push_back('\\');
- break;
- }
- Res.push_back(*Arg);
- }
-}
-
/// Apply \a Work on the current tool chain \a RegularToolChain and any other
/// offloading tool chain that is associated with the current action \a JA.
static void
@@ -7702,31 +7685,10 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
// Also record command line arguments into the debug info if
// -grecord-gcc-switches options is set on.
// By default, -gno-record-gcc-switches is set on and no recording.
- auto GRecordSwitches =
- Args.hasFlag(options::OPT_grecord_command_line,
- options::OPT_gno_record_command_line, false);
- auto FRecordSwitches =
- Args.hasFlag(options::OPT_frecord_command_line,
- options::OPT_fno_record_command_line, false);
- if (FRecordSwitches && !Triple.isOSBinFormatELF() &&
- !Triple.isOSBinFormatXCOFF() && !Triple.isOSBinFormatMachO())
- D.Diag(diag::err_drv_unsupported_opt_for_target)
- << Args.getLastArg(options::OPT_frecord_command_line)->getAsString(Args)
- << TripleStr;
- if (TC.UseDwarfDebugFlags() || GRecordSwitches || FRecordSwitches) {
- ArgStringList OriginalArgs;
- for (const auto &Arg : Args)
- Arg->render(Args, OriginalArgs);
-
- SmallString<256> Flags;
- EscapeSpacesAndBackslashes(Exec, Flags);
- for (const char *OriginalArg : OriginalArgs) {
- SmallString<128> EscapedArg;
- EscapeSpacesAndBackslashes(OriginalArg, EscapedArg);
- Flags += " ";
- Flags += EscapedArg;
- }
- auto FlagsArgString = Args.MakeArgString(Flags);
+ auto GRecordSwitches = false;
+ auto FRecordSwitches = false;
+ if (ShouldRecordCommandLine(TC, Args, FRecordSwitches, GRecordSwitches)) {
+ auto FlagsArgString = RenderEscapedCommandLine(TC, Args);
if (TC.UseDwarfDebugFlags() || GRecordSwitches) {
CmdArgs.push_back("-dwarf-debug-flags");
CmdArgs.push_back(FlagsArgString);
diff --git a/clang/lib/Driver/ToolChains/CommonUtils.cpp b/clang/lib/Driver/ToolChains/CommonUtils.cpp
new file mode 100644
index 00000000000000..20d76990517a43
--- /dev/null
+++ b/clang/lib/Driver/ToolChains/CommonUtils.cpp
@@ -0,0 +1,76 @@
+//===--- CommonUtils.h - Common utilities for the toolchains ----*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "CommonUtils.h"
+#include "clang/Driver/Driver.h"
+#include "llvm/ADT/SmallString.h"
+
+using namespace clang::driver;
+
+namespace clang {
+
+void EscapeSpacesAndBackslashes(const char *Arg,
+ llvm::SmallVectorImpl<char> &Res) {
+ for (; *Arg; ++Arg) {
+ switch (*Arg) {
+ default:
+ break;
+ case ' ':
+ case '\\':
+ Res.push_back('\\');
+ break;
+ }
+ Res.push_back(*Arg);
+ }
+}
+
+const char *RenderEscapedCommandLine(const ToolChain &TC,
+ const llvm::opt::ArgList &Args) {
+ const Driver &D = TC.getDriver();
+ const char *Exec = D.getClangProgramPath();
+
+ llvm::opt::ArgStringList OriginalArgs;
+ for (const auto &Arg : Args)
+ Arg->render(Args, OriginalArgs);
+
+ llvm::SmallString<256> Flags;
+ EscapeSpacesAndBackslashes(Exec, Flags);
+ for (const char *OriginalArg : OriginalArgs) {
+ llvm::SmallString<128> EscapedArg;
+ EscapeSpacesAndBackslashes(OriginalArg, EscapedArg);
+ Flags += " ";
+ Flags += EscapedArg;
+ }
+
+ return Args.MakeArgString(Flags);
+}
+
+bool ShouldRecordCommandLine(const ToolChain &TC,
+ const llvm::opt::ArgList &Args,
+ bool &FRecordCommandLine,
+ bool &GRecordCommandLine) {
+ const Driver &D = TC.getDriver();
+ const llvm::Triple &Triple = TC.getEffectiveTriple();
+ const std::string &TripleStr = Triple.getTriple();
+
+ FRecordCommandLine =
+ Args.hasFlag(options::OPT_frecord_command_line,
+ options::OPT_fno_record_command_line, false);
+ GRecordCommandLine =
+ Args.hasFlag(options::OPT_grecord_command_line,
+ options::OPT_gno_record_command_line, false);
+ if (FRecordCommandLine && !Triple.isOSBinFormatELF() &&
+ !Triple.isOSBinFormatXCOFF() && !Triple.isOSBinFormatMachO())
+ D.Diag(diag::err_drv_unsupported_opt_for_target)
+ << Args.getLastArg(options::OPT_frecord_command_line)->getAsString(Args)
+ << TripleStr;
+
+ return FRecordCommandLine || TC.UseDwarfDebugFlags() || GRecordCommandLine;
+}
+
+} // namespace clang
diff --git a/clang/lib/Driver/ToolChains/CommonUtils.h b/clang/lib/Driver/ToolChains/CommonUtils.h
new file mode 100644
index 00000000000000..1ae1c54cf58db4
--- /dev/null
+++ b/clang/lib/Driver/ToolChains/CommonUtils.h
@@ -0,0 +1,44 @@
+//===--- CommonUtils.h - Common utilities for the toolchains ----*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_COMMONUTILS_H
+#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_COMMONUTILS_H
+
+#include "clang/Driver/ToolChain.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/Option/ArgList.h"
+
+namespace clang {
+
+// Add backslashes to escape spaces and other backslashes.
+// This is used for the space-separated argument list specified with
+// the -dwarf-debug-flags option.
+void EscapeSpacesAndBackslashes(const char *Arg,
+ llvm::SmallVectorImpl<char> &Res);
+
+/// Join the args in the given ArgList, escape spaces and backslashes and
+/// return the joined string. This is used when saving the command line as a
+/// result of using either the -frecord-command-line or -grecord-command-line
+/// options. The lifetime of the returned c-string will match that of the Args
+/// argument.
+const char *RenderEscapedCommandLine(const clang::driver::ToolChain &TC,
+ const llvm::opt::ArgList &Args);
+
+/// Check if the command line should be recorded in the object file. This is
+/// done if either -frecord-command-line or -grecord-command-line options have
+/// been passed. This also does some error checking since -frecord-command-line
+/// is currently only supported on ELF platforms. The last two boolean
+/// arguments are out parameters and will be set depending on the command
+/// line options that were passed.
+bool ShouldRecordCommandLine(const clang::driver::ToolChain &TC,
+ const llvm::opt::ArgList &Args,
+ bool &FRecordCommandLine,
+ bool &GRecordCommandLine);
+} // namespace clang
+
+#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_COMMONUTILS_H
diff --git a/clang/lib/Driver/ToolChains/Flang.cpp b/clang/lib/Driver/ToolChains/Flang.cpp
index 6ce79d27e98c48..2ef14e306cf324 100644
--- a/clang/lib/Driver/ToolChains/Flang.cpp
+++ b/clang/lib/Driver/ToolChains/Flang.cpp
@@ -9,6 +9,7 @@
#include "Flang.h"
#include "Arch/RISCV.h"
#include "CommonArgs.h"
+#include "CommonUtils.h"
#include "clang/Basic/CodeGenOptions.h"
#include "clang/Driver/Options.h"
@@ -885,6 +886,20 @@ void Flang::ConstructJob(Compilation &C, const JobAction &JA,
addDashXForInput(Args, Input, CmdArgs);
+ bool FRecordCmdLine = false;
+ bool GRecordCmdLine = false;
+ if (ShouldRecordCommandLine(TC, Args, FRecordCmdLine, GRecordCmdLine)) {
+ const char *CmdLine = RenderEscapedCommandLine(TC, Args);
+ if (FRecordCmdLine) {
+ CmdArgs.push_back("-record-command-line");
+ CmdArgs.push_back(CmdLine);
+ }
+ if (TC.UseDwarfDebugFlags() || GRecordCmdLine) {
+ CmdArgs.push_back("-dwarf-debug-flags");
+ CmdArgs.push_back(CmdLine);
+ }
+ }
+
CmdArgs.push_back(Input.getFilename());
// TODO: Replace flang-new with flang once the new driver replaces the
diff --git a/flang/include/flang/Frontend/CodeGenOptions.h b/flang/include/flang/Frontend/CodeGenOptions.h
index ac7fcbcba4f747..f19943335737b9 100644
--- a/flang/include/flang/Frontend/CodeGenOptions.h
+++ b/flang/include/flang/Frontend/CodeGenOptions.h
@@ -63,6 +63,9 @@ class CodeGenOptions : public CodeGenOptionsBase {
/// The directory where temp files are stored if specified by -save-temps
std::optional<std::string> SaveTempsDir;
+ /// The string containing the commandline for the llvm.commandline metadata.
+ std::optional<std::string> RecordCommandLine;
+
/// The name of the file to which the backend should save YAML optimization
/// records.
std::string OptRecordFile;
diff --git a/flang/include/flang/Lower/Bridge.h b/flang/include/flang/Lower/Bridge.h
index 4379ed512cdf0a..8ea5ed52e28218 100644
--- a/flang/include/flang/Lower/Bridge.h
+++ b/flang/include/flang/Lower/Bridge.h
@@ -14,6 +14,8 @@
#define FORTRAN_LOWER_BRIDGE_H
#include "flang/Common/Fortran.h"
+#include "flang/Frontend/CodeGenOptions.h"
+#include "flang/Frontend/TargetOptions.h"
#include "flang/Lower/AbstractConverter.h"
#include "flang/Lower/EnvironmentDefault.h"
#include "flang/Lower/LoweringOptions.h"
@@ -65,11 +67,13 @@ class LoweringBridge {
const Fortran::lower::LoweringOptions &loweringOptions,
const std::vector<Fortran::lower::EnvironmentDefault> &envDefaults,
const Fortran::common::LanguageFeatureControl &languageFeatures,
- const llvm::TargetMachine &targetMachine, llvm::StringRef tuneCPU) {
+ const llvm::TargetMachine &targetMachine,
+ const Fortran::frontend::TargetOptions &targetOptions,
+ const Fortran::frontend::CodeGenOptions &codeGenOptions) {
return LoweringBridge(ctx, semanticsContext, defaultKinds, intrinsics,
targetCharacteristics, allCooked, triple, kindMap,
loweringOptions, envDefaults, languageFeatures,
- targetMachine, tuneCPU);
+ targetMachine, targetOptions, codeGenOptions);
}
//===--------------------------------------------------------------------===//
@@ -148,7 +152,9 @@ class LoweringBridge {
const Fortran::lower::LoweringOptions &loweringOptions,
const std::vector<Fortran::lower::EnvironmentDefault> &envDefaults,
const Fortran::common::LanguageFeatureControl &languageFeatures,
- const llvm::TargetMachine &targetMachine, const llvm::StringRef tuneCPU);
+ const llvm::TargetMachine &targetMachine,
+ const Fortran::frontend::TargetOptions &targetOptions,
+ const Fortran::frontend::CodeGenOptions &codeGenOptions);
LoweringBridge() = delete;
LoweringBridge(const LoweringBridge &) = delete;
diff --git a/flang/include/flang/Optimizer/Dialect/Support/FIRContext.h b/flang/include/flang/Optimizer/Dialect/Support/FIRContext.h
index e45011c8e02a33..2df14f83c11e17 100644
--- a/flang/include/flang/Optimizer/Dialect/Support/FIRContext.h
+++ b/flang/include/flang/Optimizer/Dialect/Support/FIRContext.h
@@ -77,6 +77,12 @@ void setIdent(mlir::ModuleOp mod, llvm::StringRef ident);
/// Get the compiler identifier from the Module.
llvm::StringRef getIdent(mlir::ModuleOp mod);
+/// Set the command line used in this invocation.
+void setCommandline(mlir::ModuleOp mod, llvm::StringRef cmdLine);
+
+/// Get the command line used in this invocation.
+llvm::StringRef getCommandline(mlir::ModuleOp mod);
+
/// Helper for determining the target from the host, etc. Tools may use this
/// function to provide a consistent interpretation of the `--target=<string>`
/// command-line option.
diff --git a/flang/lib/Frontend/CompilerInvocation.cpp b/flang/lib/Frontend/CompilerInvocation.cpp
index 90c327546198b5..8441c7d8d2e9bc 100644
--- a/flang/lib/Frontend/CompilerInvocation.cpp
+++ b/flang/lib/Frontend/CompilerInvocation.cpp
@@ -348,6 +348,12 @@ static void parseCodeGenArgs(Fortran::frontend::CodeGenOptions &opts,
if (auto *a = args.getLastArg(clang::driver::options::OPT_save_temps_EQ))
opts.SaveTempsDir = a->getValue();
+ // -record-command-line option.
+ if (const llvm::opt::Arg *a =
+ args.getLastArg(clang::driver::options::OPT_record_command_line)) {
+ opts.RecordCommandLine = a->getValue();
+ }
+
// -mlink-builtin-bitcode
for (auto *a :
args.filtered(clang::driver::options::OPT_mlink_builtin_bitcode))
diff --git a/flang/lib/Frontend/FrontendActions.cpp b/flang/lib/Frontend/FrontendActions.cpp
index cda82bcb7ecc71..7be61e5ee7b775 100644
--- a/flang/lib/Frontend/FrontendActions.cpp
+++ b/flang/lib/Frontend/FrontendActions.cpp
@@ -302,7 +302,7 @@ bool CodeGenAction::beginSourceFileAction() {
kindMap, ci.getInvocation().getLoweringOpts(),
ci.getInvocation().getFrontendOpts().envDefaults,
ci.getInvocation().getFrontendOpts().features, targetMachine,
- ci.getInvocation().getTargetOpts().cpuToTuneFor);
+ ci.getInvocation().getTargetOpts(), ci.getInvocation().getCodeGenOpts());
// Fetch module from lb, so we can set
mlirModule = std::make_unique<mlir::ModuleOp>(lb.getModule());
diff --git a/flang/lib/Lower/Bridge.cpp b/flang/lib/Lower/Bridge.cpp
index ebcb7613969661..68dca219428280 100644
--- a/flang/lib/Lower/Bridge.cpp
+++ b/flang/lib/Lower/Bridge.cpp
@@ -6064,7 +6064,9 @@ Fortran::lower::LoweringBridge::LoweringBridge(
const Fortran::lower::LoweringOptions &loweringOptions,
const std::vector<Fortran::lower::EnvironmentDefault> &envDefaults,
const Fortran::common::LanguageFeatureControl &languageFeatures,
- const llvm::TargetMachine &targetMachine, const llvm::StringRef tuneCPU)
+ const llvm::TargetMachine &targetMachine,
+ const Fortran::frontend::TargetOptions &targetOpts,
+ const Fortran::frontend::CodeGenOptions &cgOpts)
: semanticsContext{semanticsContext}, defaultKinds{defaultKinds},
intrinsics{intrinsics}, targetCharacteristics{targetCharacteristics},
cooked{&cooked}, context{context}, kindMap{kindMap},
@@ -6121,11 +6123,13 @@ Fortran::lower::LoweringBridge::LoweringBridge(
fir::setTargetTriple(*module.get(), triple);
fir::setKindMapping(*module.get(), kindMap);
fir::setTargetCPU(*module.get(), targetMachine.getTargetCPU());
- fir::setTuneCPU(*module.get(), tuneCPU);
+ fir::setTuneCPU(*module.get(), targetOpts.cpuToTuneFor);
fir::setTargetFeatures(*module.get(), targetMachine.getTargetFeatureString());
fir::support::setMLIRDataLayout(*module.get(),
targetMachine.createDataLayout());
fir::setIdent(*module.get(), Fortran::common::getFlangFullVersion());
+ if (cgOpts.RecordCommandLine)
+ fir::setCommandline(*module.get(), *cgOpts.RecordCommandLine);
}
void Fortran::lower::genCleanUpInRegionIfAny(
diff --git a/flang/lib/Optimizer/Dialect/Support/FIRContext.cpp b/flang/lib/Optimizer/Dialect/Support/FIRContext.cpp
index 5bd8e2d4336361..01c0be66d1ecc3 100644
--- a/flang/lib/Optimizer/Dialect/Support/FIRContext.cpp
+++ b/flang/lib/Optimizer/Dialect/Support/FIRContext.cpp
@@ -130,6 +130,22 @@ llvm::StringRef fir::getIdent(mlir::ModuleOp mod) {
return {};
}
+void fir::setCommandline(mlir::ModuleOp mod, llvm::StringRef cmdLine) {
+ if (cmdLine.empty())
+ return;
+
+ mlir::MLIRContext *ctx = mod.getContext();
+ mod->setAttr(mlir::LLVM::LLVMDialect::getCommandlineAttrName(),
+ mlir::StringAttr::get(ctx, cmdLine));
+}
+
+llvm::StringRef fir::getCommandline(mlir::ModuleOp mod) {
+ if (auto attr = mod->getAttrOfType<mlir::StringAttr>(
+ mlir::LLVM::LLVMDialect::getCommandlineAttrName()))
+ return attr;
+ return {};
+}
+
std::string fir::determineTargetTriple(llvm::StringRef triple) {
// Treat "" or "default" as stand-ins for the default machine.
if (triple.empty() || triple == "default")
diff --git a/flang/test/Driver/frecord-command-line.f90 b/flang/test/Driver/frecord-command-line.f90
new file mode 100644
index 00000000000000..bc4ce79e4a51c3
--- /dev/null
+++ b/flang/test/Driver/frecord-command-line.f90
@@ -0,0 +1,16 @@
+! This only checks that the command line is correctly passed on to the
+! -record-command-line option FC1 option and that the latter does not complain
+! about anything. The correct lowering to a module attribute and beyond will
+! be checked in other tests.
+!
+! RUN: %flang -### -target x86_64-unknown-linux -frecord-command-line %s 2>&1 | FileCheck --check-prefix=CHECK-RECORD %s
+! RUN: %flang -### -target x86_64-unknown-macosx -frecord-command-line %s 2>&1 | FileCheck --check-prefix=CHECK-RECORD %s
+! RUN: not %flang -### -target x86_64-unknown-windows -frecord-command-line %s 2>&1 | FileCheck --check-prefix=CHECK-RECORD-ERROR %s
+
+! RUN: %flang -### -target x86_64-unknown-linux -fno-record-command-line %s 2>&1 | FileCheck --check-prefix=CHECK-NO-RECORD %s
+! RUN: %flang -### -target x86_64-unknown-macosx -fno-record-command-line %s 2>&1 | FileCheck --check-prefix=CHECK-NO-RECORD %s
+! RUN: %flang -### -target x86_64-unknown-windows -fno-record-command-line %s 2>&1 | FileCheck --check-prefix=CHECK-NO-RECORD %s
+
+! CHECK-RECORD: "-record-command-line"
+! CHECK-NO-RECORD-NOT: "-record-command-line"
+! CHECK-RECORD-ERROR: error: unsupported option '-frecord-command-line' for target
diff --git a/flang/test/Lower/record-command-line.f90 b/flang/test/Lower/record-command-line.f90
new file mode 100644
index 00000000000000..a7a25bb9e8725c
--- /dev/null
+++ b/flang/test/Lower/record-command-line.f90
@@ -0,0 +1,9 @@
+! The actual command line is recorded by the frontend and passed on to FC1 as
+! the argument to -record-command-line, so in this test, we just match against
+! some string with spaces that mimics what a hypothetical command line.
+
+! RUN: %flang_fc1 -record-command-line "exec -o infile" %s -emit-fir -o - | FileCheck %s
+
+! CHECK: module attributes {
+! CHECK-SAME: llvm.commandline = "exec -o infile"
+
diff --git a/flang/tools/bbc/CMakeLists.txt b/flang/tools/bbc/CMakeLists.txt
index 69316d4dc61de3..7db3b5d40c7c94 100644
--- a/flang/tools/bbc/CMakeLists.txt
+++ b/flang/tools/bbc/CMakeLists.txt
@@ -35,4 +35,5 @@ FortranParser
FortranEvaluate
FortranSemantics
FortranLower
+flangFrontend
)
diff --git a/flang/tools/bbc/bbc.cpp b/flang/tools/bbc/bbc.cpp
index dcff4503f16571..b4a177b16d4bac 100644
--- a/flang/tools/bbc/bbc.cpp
+++ b/flang/tools/bbc/bbc.cpp
@@ -18,6 +18,7 @@
#include "flang/Common/OpenMP-features.h"
#include "flang/Common/Version.h"
#include "flang/Common/default-kinds.h"
+#include "flang/Frontend/CodeGenOptions.h"
#include "flang/Frontend/TargetOptions.h"
#include "flang/Lower/Bridge.h"
#include "flang/Lower/PFTBuilder.h"
@@ -373,12 +374,13 @@ static llvm::LogicalResult convertFortranSourceToMLIR(
loweringOptions.setLowerToHighLevelFIR(useHLFIR || emitHLFIR);
loweringOptions.setNSWOnLoopVarInc(setNSW);
std::vector<Fortran::lower::EnvironmentDefault> envDefaults = {};
- constexpr const char *tuneCPU = "";
+ Fortran::frontend::TargetOptions targetOpts;
+ Fortran::frontend::CodeGenOptions cgOpts;
auto burnside = Fortran::lower::LoweringBridge::create(
ctx, semanticsContext, defKinds, semanticsContext.intrinsics(),
semanticsContext.targetCharacteristics(), parsing.allCooked(),
targetTriple, kindMap, loweringOptions, envDefaults,
- semanticsContext.languageFeatures(), targetMachine, tuneCPU);
+ semanticsContext.languageFeatures(), targetMachine, targetOpts, cgOpts);
mlir::ModuleOp mlirModule = burnside.getModule();
if (enableOpenMP) {
if (enableOpenMPGPU && !enableOpenMPDevice) {
@@ -557,8 +559,8 @@ int main(int argc, char **argv) {
std::string compilerVersion = Fortran::common::getFlangToolFullVersion("bbc");
std::string compilerOptions = "";
Fortran::tools::setUpTargetCharacteristics(
- semanticsContext.targetCharacteristics(), *targetMachine, {},
- compilerVersion, compilerOptions);
+ semanticsContext.targetCharacteristics(), *targetMachine, compilerVersion,
+ compilerOptions);
return mlir::failed(
convertFortranSourceToMLIR(inputFilename, options, programPrefix,
diff --git a/mlir/include/mlir/Dialect/LLVMIR/LLVMDialect.td b/mlir/include/mlir/Dialect/LLVMIR/LLVMDialect.td
index edcc34461f2f26..27a2b418aadb2a 100644
--- a/mlir/include/mlir/Dialect/LLVMIR/LLVMDialect.td
+++ b/mlir/include/mlir/Dialect/LLVMIR/LLVMDialect.td
@@ -33,6 +33,7 @@ def LLVM_Dialect : Dialect {
static StringRef getAliasScopesAttrName() { return "alias_scopes"; }
static StringRef getAccessGroupsAttrName() { return "access_groups"; }
static StringRef getIdentAttrName() { return "llvm.ident"; }
+ static StringRef getCommandlineAttrName() { return "llvm.commandline"; }
/// Names of llvm parameter attributes.
static StringRef getAlignAttrName() { return "llvm.align"; }
diff --git a/mlir/include/mlir/Target/LLVMIR/ModuleImport.h b/mlir/include/mlir/Target/LLVMIR/ModuleImport.h
index 11f62c283d6a96..d32aed69cd90e8 100644
--- a/mlir/include/mlir/Target/LLVMIR/ModuleImport.h
+++ b/mlir/include/mlir/Target/LLVMIR/ModuleImport.h
@@ -199,6 +199,10 @@ class ModuleImport {
/// Converts !llvm.ident metadata to the llvm.ident LLVM ModuleOp attribute.
LogicalResult convertIdentMetadata();
+ /// Converts !llvm.commandline metadata to the llvm.commandline LLVM ModuleOp
+ /// attribute.
+ LogicalResult convertCommandlineMetadata();
+
/// Converts all LLVM metadata nodes that translate to attributes such as
/// alias analysis or access group metadata, and builds a map from the
/// metadata nodes to the converted attributes.
diff --git a/mlir/include/mlir/Target/LLVMIR/ModuleTranslation.h b/mlir/include/mlir/Target/LLVMIR/ModuleTranslation.h
index 3c85338bc642f6..ffeeeae57ae952 100644
--- a/mlir/include/mlir/Target/LLVMIR/ModuleTranslation.h
+++ b/mlir/include/mlir/Target/LLVMIR/ModuleTranslation.h
@@ -332,6 +332,9 @@ class ModuleTranslation {
/// Process the ident LLVM Metadata, if it exists.
LogicalResult createIdentMetadata();
+ /// Process the llvm.commandline LLVM Metadata, if it exists.
+ LogicalResult createCommandlineMetadata();
+
/// Translates dialect attributes attached to the given operation.
LogicalResult
convertDialectAttributes(Operation *op,
diff --git a/mlir/lib/Target/LLVMIR/ModuleImport.cpp b/mlir/lib/Target/LLVMIR/ModuleImport.cpp
index 21f2050cbceb9c..57dc0bf27d8c27 100644
--- a/mlir/lib/Target/LLVMIR/ModuleImport.cpp
+++ b/mlir/lib/Target/LLVMIR/ModuleImport.cpp
@@ -535,6 +535,23 @@ LogicalResult ModuleImport::convertIdentMetadata() {
return success();
}
+LogicalResult ModuleImport::convertCommandlineMetadata() {
+ for (const llvm::NamedMDNode &nmd : llvmModule->named_metadata()) {
+ // llvm.commandline should have a single operand. That operand is itself an
+ // MDNode with a single string operand.
+ if (nmd.getName() != LLVMDialect::getCommandlineAttrName())
+ continue;
+
+ if (nmd.getNumOperands() == 1)
+ if (auto *md = dyn_cast<llvm::MDNode>(nmd.getOperand(0)))
+ if (md->getNumOperands() == 1)
+ if (auto *mdStr = dyn_cast<llvm::MDString>(md->getOperand(0)))
+ mlirModule->setAttr(LLVMDialect::getCommandlineAttrName(),
+ builder.getStringAttr(mdStr->getString()));
+ }
+ return success();
+}
+
LogicalResult ModuleImport::convertMetadata() {
OpBuilder::InsertionGuard guard(builder);
builder.setInsertionPointToEnd(mlirModule.getBody());
@@ -565,6 +582,8 @@ LogicalResult ModuleImport::convertMetadata() {
return failure();
if (failed(convertIdentMetadata()))
return failure();
+ if (failed(convertCommandlineMetadata()))
+ return failure();
return success();
}
diff --git a/mlir/lib/Target/LLVMIR/ModuleTranslation.cpp b/mlir/lib/Target/LLVMIR/ModuleTranslation.cpp
index fcb329eb7a92c1..3c6fbe64dc3184 100644
--- a/mlir/lib/Target/LLVMIR/ModuleTranslation.cpp
+++ b/mlir/lib/Target/LLVMIR/ModuleTranslation.cpp
@@ -1830,6 +1830,21 @@ LogicalResult ModuleTranslation::createIdentMetadata() {
return success();
}
+LogicalResult ModuleTranslation::createCommandlineMetadata() {
+ if (auto attr = mlirModule->getAttrOfType<StringAttr>(
+ LLVMDialect::getCommandlineAttrName())) {
+ StringRef cmdLine = attr;
+ llvm::LLVMContext &ctx = llvmModule->getContext();
+ llvm::NamedMDNode *nmd = llvmModule->getOrInsertNamedMetadata(
+ LLVMDialect::getCommandlineAttrName());
+ llvm::MDNode *md =
+ llvm::MDNode::get(ctx, llvm::MDString::get(ctx, cmdLine));
+ nmd->addOperand(md);
+ }
+
+ return success();
+}
+
void ModuleTranslation::setLoopMetadata(Operation *op,
llvm::Instruction *inst) {
LoopAnnotationAttr attr =
@@ -1983,6 +1998,8 @@ mlir::translateModuleToLLVMIR(Operation *module, llvm::LLVMContext &llvmContext,
return nullptr;
if (failed(translator.createIdentMetadata()))
return nullptr;
+ if (failed(translator.createCommandlineMetadata()))
+ return nullptr;
// Convert other top-level operations if possible.
for (Operation &o : getModuleBody(module).getOperations()) {
diff --git a/mlir/test/Target/LLVMIR/Import/commandline.ll b/mlir/test/Target/LLVMIR/Import/commandline.ll
new file mode 100644
index 00000000000000..f31aec8cc5aac1
--- /dev/null
+++ b/mlir/test/Target/LLVMIR/Import/commandline.ll
@@ -0,0 +1,6 @@
+; RUN: mlir-translate -import-llvm -split-input-file %s | FileCheck %s
+
+; CHECK: module attributes {
+; CHECK-SAME: llvm.commandline = "exec -o infile"
+!llvm.commandline = !{!0}
+!0 = !{!"exec -o infile"}
diff --git a/mlir/test/Target/LLVMIR/commandline.mlir b/mlir/test/Target/LLVMIR/commandline.mlir
new file mode 100644
index 00000000000000..817a5ac2164e9f
--- /dev/null
+++ b/mlir/test/Target/LLVMIR/commandline.mlir
@@ -0,0 +1,6 @@
+// RUN: mlir-translate -mlir-to-llvmir %s | FileCheck %s
+
+// CHECK: !llvm.commandline = !{![[S:[0-9]+]]}
+// CHECK: ![[S]] = !{!"exec -o infile"}
+module attributes {llvm.commandline = "exec -o infile"} {
+}
>From fffcf99346991cd3684a8a60b27a72cec4c41dd6 Mon Sep 17 00:00:00 2001
From: Tarun Prabhu <tarun.prabhu at gmail.com>
Date: Mon, 9 Sep 2024 12:49:39 -0600
Subject: [PATCH 2/3] Rebase with main and fix bad merge from previous rebase.
---
flang/tools/bbc/bbc.cpp | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/flang/tools/bbc/bbc.cpp b/flang/tools/bbc/bbc.cpp
index b4a177b16d4bac..935fae2fc96a70 100644
--- a/flang/tools/bbc/bbc.cpp
+++ b/flang/tools/bbc/bbc.cpp
@@ -559,8 +559,8 @@ int main(int argc, char **argv) {
std::string compilerVersion = Fortran::common::getFlangToolFullVersion("bbc");
std::string compilerOptions = "";
Fortran::tools::setUpTargetCharacteristics(
- semanticsContext.targetCharacteristics(), *targetMachine, compilerVersion,
- compilerOptions);
+ semanticsContext.targetCharacteristics(), *targetMachine, {},
+ compilerVersion, compilerOptions);
return mlir::failed(
convertFortranSourceToMLIR(inputFilename, options, programPrefix,
>From 367519d3d84f67a73af4e97240edb46e24f5dd9c Mon Sep 17 00:00:00 2001
From: Tarun Prabhu <tarun.prabhu at gmail.com>
Date: Mon, 16 Sep 2024 13:27:39 -0600
Subject: [PATCH 3/3] Address reviewer comments. Don't create a CommonUtils
file, but move the code to CommonArgs instead. That code has been put in the
clang::driver namespace.
---
clang/lib/Driver/CMakeLists.txt | 1 -
clang/lib/Driver/ToolChains/Clang.cpp | 1 -
clang/lib/Driver/ToolChains/CommonArgs.cpp | 59 ++++++++++++++++
clang/lib/Driver/ToolChains/CommonArgs.h | 26 +++++++
clang/lib/Driver/ToolChains/CommonUtils.cpp | 76 ---------------------
clang/lib/Driver/ToolChains/CommonUtils.h | 44 ------------
clang/lib/Driver/ToolChains/Flang.cpp | 1 -
7 files changed, 85 insertions(+), 123 deletions(-)
delete mode 100644 clang/lib/Driver/ToolChains/CommonUtils.cpp
delete mode 100644 clang/lib/Driver/ToolChains/CommonUtils.h
diff --git a/clang/lib/Driver/CMakeLists.txt b/clang/lib/Driver/CMakeLists.txt
index 0b92077384e9bc..32a4378ab499fa 100644
--- a/clang/lib/Driver/CMakeLists.txt
+++ b/clang/lib/Driver/CMakeLists.txt
@@ -48,7 +48,6 @@ add_clang_library(clangDriver
ToolChains/BareMetal.cpp
ToolChains/Clang.cpp
ToolChains/CommonArgs.cpp
- ToolChains/CommonUtils.cpp
ToolChains/CrossWindows.cpp
ToolChains/CSKYToolChain.cpp
ToolChains/Cuda.cpp
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 7f7f837d116def..84215d37af41fe 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -21,7 +21,6 @@
#include "Arch/VE.h"
#include "Arch/X86.h"
#include "CommonArgs.h"
-#include "CommonUtils.h"
#include "Hexagon.h"
#include "MSP430.h"
#include "PS4CPU.h"
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 502aba2ce4aa9c..54143787e00d2f 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -2976,3 +2976,62 @@ void tools::addMCModel(const Driver &D, const llvm::opt::ArgList &Args,
}
}
}
+
+void driver::EscapeSpacesAndBackslashes(const char *Arg,
+ llvm::SmallVectorImpl<char> &Res) {
+ for (; *Arg; ++Arg) {
+ switch (*Arg) {
+ default:
+ break;
+ case ' ':
+ case '\\':
+ Res.push_back('\\');
+ break;
+ }
+ Res.push_back(*Arg);
+ }
+}
+
+const char *driver::RenderEscapedCommandLine(const ToolChain &TC,
+ const llvm::opt::ArgList &Args) {
+ const Driver &D = TC.getDriver();
+ const char *Exec = D.getClangProgramPath();
+
+ llvm::opt::ArgStringList OriginalArgs;
+ for (const auto &Arg : Args)
+ Arg->render(Args, OriginalArgs);
+
+ llvm::SmallString<256> Flags;
+ EscapeSpacesAndBackslashes(Exec, Flags);
+ for (const char *OriginalArg : OriginalArgs) {
+ llvm::SmallString<128> EscapedArg;
+ EscapeSpacesAndBackslashes(OriginalArg, EscapedArg);
+ Flags += " ";
+ Flags += EscapedArg;
+ }
+
+ return Args.MakeArgString(Flags);
+}
+
+bool driver::ShouldRecordCommandLine(const ToolChain &TC,
+ const llvm::opt::ArgList &Args,
+ bool &FRecordCommandLine,
+ bool &GRecordCommandLine) {
+ const Driver &D = TC.getDriver();
+ const llvm::Triple &Triple = TC.getEffectiveTriple();
+ const std::string &TripleStr = Triple.getTriple();
+
+ FRecordCommandLine =
+ Args.hasFlag(options::OPT_frecord_command_line,
+ options::OPT_fno_record_command_line, false);
+ GRecordCommandLine =
+ Args.hasFlag(options::OPT_grecord_command_line,
+ options::OPT_gno_record_command_line, false);
+ if (FRecordCommandLine && !Triple.isOSBinFormatELF() &&
+ !Triple.isOSBinFormatXCOFF() && !Triple.isOSBinFormatMachO())
+ D.Diag(diag::err_drv_unsupported_opt_for_target)
+ << Args.getLastArg(options::OPT_frecord_command_line)->getAsString(Args)
+ << TripleStr;
+
+ return FRecordCommandLine || TC.UseDwarfDebugFlags() || GRecordCommandLine;
+}
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.h b/clang/lib/Driver/ToolChains/CommonArgs.h
index 0c97398dfcfa34..186357958c3d17 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.h
+++ b/clang/lib/Driver/ToolChains/CommonArgs.h
@@ -237,6 +237,32 @@ void addMCModel(const Driver &D, const llvm::opt::ArgList &Args,
llvm::opt::ArgStringList &CmdArgs);
} // end namespace tools
+
+/// Add backslashes to escape spaces and other backslashes.
+/// This is used for the space-separated argument list specified with
+/// the -dwarf-debug-flags option.
+void EscapeSpacesAndBackslashes(const char *Arg,
+ llvm::SmallVectorImpl<char> &Res);
+
+/// Join the args in the given ArgList, escape spaces and backslashes and
+/// return the joined string. This is used when saving the command line as a
+/// result of using either the -frecord-command-line or -grecord-command-line
+/// options. The lifetime of the returned c-string will match that of the Args
+/// argument.
+const char *RenderEscapedCommandLine(const ToolChain &TC,
+ const llvm::opt::ArgList &Args);
+
+/// Check if the command line should be recorded in the object file. This is
+/// done if either -frecord-command-line or -grecord-command-line options have
+/// been passed. This also does some error checking since -frecord-command-line
+/// is currently only supported on ELF platforms. The last two boolean
+/// arguments are out parameters and will be set depending on the command
+/// line options that were passed.
+bool ShouldRecordCommandLine(const ToolChain &TC,
+ const llvm::opt::ArgList &Args,
+ bool &FRecordCommandLine,
+ bool &GRecordCommandLine);
+
} // end namespace driver
} // end namespace clang
diff --git a/clang/lib/Driver/ToolChains/CommonUtils.cpp b/clang/lib/Driver/ToolChains/CommonUtils.cpp
deleted file mode 100644
index 20d76990517a43..00000000000000
--- a/clang/lib/Driver/ToolChains/CommonUtils.cpp
+++ /dev/null
@@ -1,76 +0,0 @@
-//===--- CommonUtils.h - Common utilities for the toolchains ----*- C++ -*-===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "CommonUtils.h"
-#include "clang/Driver/Driver.h"
-#include "llvm/ADT/SmallString.h"
-
-using namespace clang::driver;
-
-namespace clang {
-
-void EscapeSpacesAndBackslashes(const char *Arg,
- llvm::SmallVectorImpl<char> &Res) {
- for (; *Arg; ++Arg) {
- switch (*Arg) {
- default:
- break;
- case ' ':
- case '\\':
- Res.push_back('\\');
- break;
- }
- Res.push_back(*Arg);
- }
-}
-
-const char *RenderEscapedCommandLine(const ToolChain &TC,
- const llvm::opt::ArgList &Args) {
- const Driver &D = TC.getDriver();
- const char *Exec = D.getClangProgramPath();
-
- llvm::opt::ArgStringList OriginalArgs;
- for (const auto &Arg : Args)
- Arg->render(Args, OriginalArgs);
-
- llvm::SmallString<256> Flags;
- EscapeSpacesAndBackslashes(Exec, Flags);
- for (const char *OriginalArg : OriginalArgs) {
- llvm::SmallString<128> EscapedArg;
- EscapeSpacesAndBackslashes(OriginalArg, EscapedArg);
- Flags += " ";
- Flags += EscapedArg;
- }
-
- return Args.MakeArgString(Flags);
-}
-
-bool ShouldRecordCommandLine(const ToolChain &TC,
- const llvm::opt::ArgList &Args,
- bool &FRecordCommandLine,
- bool &GRecordCommandLine) {
- const Driver &D = TC.getDriver();
- const llvm::Triple &Triple = TC.getEffectiveTriple();
- const std::string &TripleStr = Triple.getTriple();
-
- FRecordCommandLine =
- Args.hasFlag(options::OPT_frecord_command_line,
- options::OPT_fno_record_command_line, false);
- GRecordCommandLine =
- Args.hasFlag(options::OPT_grecord_command_line,
- options::OPT_gno_record_command_line, false);
- if (FRecordCommandLine && !Triple.isOSBinFormatELF() &&
- !Triple.isOSBinFormatXCOFF() && !Triple.isOSBinFormatMachO())
- D.Diag(diag::err_drv_unsupported_opt_for_target)
- << Args.getLastArg(options::OPT_frecord_command_line)->getAsString(Args)
- << TripleStr;
-
- return FRecordCommandLine || TC.UseDwarfDebugFlags() || GRecordCommandLine;
-}
-
-} // namespace clang
diff --git a/clang/lib/Driver/ToolChains/CommonUtils.h b/clang/lib/Driver/ToolChains/CommonUtils.h
deleted file mode 100644
index 1ae1c54cf58db4..00000000000000
--- a/clang/lib/Driver/ToolChains/CommonUtils.h
+++ /dev/null
@@ -1,44 +0,0 @@
-//===--- CommonUtils.h - Common utilities for the toolchains ----*- C++ -*-===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_COMMONUTILS_H
-#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_COMMONUTILS_H
-
-#include "clang/Driver/ToolChain.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/Option/ArgList.h"
-
-namespace clang {
-
-// Add backslashes to escape spaces and other backslashes.
-// This is used for the space-separated argument list specified with
-// the -dwarf-debug-flags option.
-void EscapeSpacesAndBackslashes(const char *Arg,
- llvm::SmallVectorImpl<char> &Res);
-
-/// Join the args in the given ArgList, escape spaces and backslashes and
-/// return the joined string. This is used when saving the command line as a
-/// result of using either the -frecord-command-line or -grecord-command-line
-/// options. The lifetime of the returned c-string will match that of the Args
-/// argument.
-const char *RenderEscapedCommandLine(const clang::driver::ToolChain &TC,
- const llvm::opt::ArgList &Args);
-
-/// Check if the command line should be recorded in the object file. This is
-/// done if either -frecord-command-line or -grecord-command-line options have
-/// been passed. This also does some error checking since -frecord-command-line
-/// is currently only supported on ELF platforms. The last two boolean
-/// arguments are out parameters and will be set depending on the command
-/// line options that were passed.
-bool ShouldRecordCommandLine(const clang::driver::ToolChain &TC,
- const llvm::opt::ArgList &Args,
- bool &FRecordCommandLine,
- bool &GRecordCommandLine);
-} // namespace clang
-
-#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_COMMONUTILS_H
diff --git a/clang/lib/Driver/ToolChains/Flang.cpp b/clang/lib/Driver/ToolChains/Flang.cpp
index 2ef14e306cf324..d7804994488527 100644
--- a/clang/lib/Driver/ToolChains/Flang.cpp
+++ b/clang/lib/Driver/ToolChains/Flang.cpp
@@ -9,7 +9,6 @@
#include "Flang.h"
#include "Arch/RISCV.h"
#include "CommonArgs.h"
-#include "CommonUtils.h"
#include "clang/Basic/CodeGenOptions.h"
#include "clang/Driver/Options.h"
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