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Merged
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Nov 10, 2023
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[flang][windows] Add option to link against specific MSVC CRT #70833

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2 changes: 1 addition & 1 deletion clang/include/clang/Driver/Options.td
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Expand Up @@ -2858,7 +2858,7 @@ def fms_compatibility_version
"version number to report in _MSC_VER (0 = don't define it "
"(default))">;
def fms_runtime_lib_EQ : Joined<["-"], "fms-runtime-lib=">, Group<f_Group>,
Flags<[]>, Visibility<[ClangOption, CLOption]>,
Flags<[]>, Visibility<[ClangOption, CLOption, FlangOption]>,
Values<"static,static_dbg,dll,dll_dbg">,
HelpText<"Select Windows run-time library">,
DocBrief<[{
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42 changes: 38 additions & 4 deletions clang/lib/Driver/ToolChains/CommonArgs.cpp
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Expand Up @@ -976,12 +976,46 @@ bool tools::addOpenMPRuntime(ArgStringList &CmdArgs, const ToolChain &TC,
return true;
}

void tools::addFortranRuntimeLibs(const ToolChain &TC,
void tools::addFortranRuntimeLibs(const ToolChain &TC, const ArgList &Args,
llvm::opt::ArgStringList &CmdArgs) {
if (TC.getTriple().isKnownWindowsMSVCEnvironment()) {
CmdArgs.push_back("Fortran_main.lib");
CmdArgs.push_back("FortranRuntime.lib");
CmdArgs.push_back("FortranDecimal.lib");
CmdArgs.push_back(Args.MakeArgString(
"/DEFAULTLIB:" + TC.getCompilerRTBasename(Args, "builtins")));
unsigned RTOptionID = options::OPT__SLASH_MT;
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As of LLVM 17.0's distribution, the Fortran runtime libraries are built with msvcrt, so I think the current default is actually /MD. Since this wasn't really modeled before, and CMake will be taught to pass one of the four flags explicitly anyway, changing the default may not matter, but it's something to be aware of.

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I think we should take the opportunity to match what clang's default behaviour is here, which is to pass /MT. I think having the two do something different is surprising at the moment and should be changed.

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Yes, changing the default to match Clang makes sense.

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In local testing, flang-new -fms-runtime-lib=static foo.f90 -v, where foo.f90 is an empty program statement, fails with a bunch of unresolved CRT symbols.

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Could you share the missing symbols? If it's something like __udivti3 then that's an issue with not finding compiler-rt (those symbols are for 128 bit types and not contained in the MSVC rt libs of any flavour), see #25679. If so, there's perhaps a chance that things work with flang-new -DAVOID_NATIVE_UINT128_T=1...

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I should be adding the missing compiler-rt libs in this patch too. I don’t see any missing symbols in any of the configurations when testing an empty program locally. Could you share the error you’re seeing?

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@bradking bradking Nov 2, 2023 •
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The errors were due to #70833 (review) because the runtime library variants were not being built with the correct CRT themselves. After switching back to the CMAKE_MSVC_RUNTIME_LIBRARY the problem is resolved.

if (auto *rtl = Args.getLastArg(options::OPT_fms_runtime_lib_EQ)) {
RTOptionID = llvm::StringSwitch<unsigned>(rtl->getValue())
.Case("static", options::OPT__SLASH_MT)
.Case("static_dbg", options::OPT__SLASH_MTd)
.Case("dll", options::OPT__SLASH_MD)
.Case("dll_dbg", options::OPT__SLASH_MDd)
.Default(options::OPT__SLASH_MT);
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The switch accepts names static,static_dbg,dll,dbg_dll. Should we use matching names for the FortranRuntime.*.lib variants?

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Hmm. Now that I see those names on disk after building from your update, file names like FortranRuntime.dll.lib might be confusing since they do not actually have a corresponding FortranRuntime.dll. Maybe .dynamic was better.

}
switch (RTOptionID) {
case options::OPT__SLASH_MT:
CmdArgs.push_back("/DEFAULTLIB:libcmt");
CmdArgs.push_back("Fortran_main.static.lib");
CmdArgs.push_back("FortranRuntime.static.lib");
CmdArgs.push_back("FortranDecimal.static.lib");
break;
case options::OPT__SLASH_MTd:
CmdArgs.push_back("/DEFAULTLIB:libcmtd");
CmdArgs.push_back("Fortran_main.static_dbg.lib");
CmdArgs.push_back("FortranRuntime.static_dbg.lib");
CmdArgs.push_back("FortranDecimal.static_dbg.lib");
break;
case options::OPT__SLASH_MD:
CmdArgs.push_back("/DEFAULTLIB:msvcrt");
CmdArgs.push_back("Fortran_main.dynamic.lib");
CmdArgs.push_back("FortranRuntime.dynamic.lib");
CmdArgs.push_back("FortranDecimal.dynamic.lib");
break;
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From #70833 (comment):

I think you're probably right in the linked issue that it'd be better to add defaultlib directives to the object files, but that appears to be quite difficult as we'd need to track the attributes all the way through our MLIR lowering, so as a (hopefully temporary) shortcut I have just passed the libraries on the link line.

This temporary approach will actually make things harder for CMake to support flang-new. In order to support mixed-language (e.g., Fortran and C++) binaries we detect the implicit link directories and libraries that each compiler driver passes to the linker when used to drive linking. Then if we have to link using a different language's tooling, we can add them explicitly. We don't typically do that for the MSVC ABI though because the set of runtime libraries varies with the CRT choice and the defaultlib directives in object files handle it automatically anyway. Currently CMake is working around the lack of defaultlib directives for flang-new by using the implicit-lib-detection approach. Once the implicitly linked runtime libraries vary with the CRT, we would need a lot of dedicated non-trivial infrastructure to handle all the MSVC_RUNTIME_LIBRARY variants, and I'm not sure it's possible in all cases.

Can you instead add these four CRT-specific libraries as defaultlib directives in all object files, and add the more detailed conditions to remove unnecessary libraries later? Since they are all static .lib files, unused directives may not hurt.

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Is there a way to add defaultlib directives using a CLI tool, or do they have to be added when the compiler creates the object file? The main issue is we have an MLIR step in between flang and LLVM IR and I don't believe MLIR supports the attributes for setting these defaultlib directives yet, so implimenting that might be quite a lot of work... It's not so much that we would have difficulty adding the specific defaultlib directive we need, as that we'd have an issue adding any of them.

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@DavidTruby DavidTruby Nov 1, 2023 •
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Having had a look, I think we can replicate what clang -cc1's --dependent-lib= setting does possibly
EDIT: this looks quite complicated, but I think is what we need to do in the long run. Do you think we could merge this patch as at least an improvement, and I will look at adding this option to do things correctly?

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I'm not aware of any easy way to add defaultlib directives after-the-fact.

I think it's okay to merge this PR's approach as a temporary solution. It does fix the empty-program example in #68017 work, and provide the Fortran runtime library variants. However, I'm not sure how well CMake will be able to support this until the defaultlib part is added.

BTW, the Fixes #68017 note in the PR description is no longer accurate. It's not fully fixed yet.

case options::OPT__SLASH_MDd:
CmdArgs.push_back("/DEFAULTLIB:msvcrtd");
CmdArgs.push_back("Fortran_main.dynamic_dbg.lib");
CmdArgs.push_back("FortranRuntime.dynamic_dbg.lib");
CmdArgs.push_back("FortranDecimal.dynamic_dbg.lib");
break;
}
} else {
CmdArgs.push_back("-lFortran_main");
CmdArgs.push_back("-lFortranRuntime");
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2 changes: 1 addition & 1 deletion clang/lib/Driver/ToolChains/CommonArgs.h
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Expand Up @@ -116,7 +116,7 @@ bool addOpenMPRuntime(llvm::opt::ArgStringList &CmdArgs, const ToolChain &TC,
bool IsOffloadingHost = false, bool GompNeedsRT = false);

/// Adds Fortran runtime libraries to \p CmdArgs.
void addFortranRuntimeLibs(const ToolChain &TC,
void addFortranRuntimeLibs(const ToolChain &TC, const llvm::opt::ArgList &Args,
llvm::opt::ArgStringList &CmdArgs);

/// Adds the path for the Fortran runtime libraries to \p CmdArgs.
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2 changes: 1 addition & 1 deletion clang/lib/Driver/ToolChains/Darwin.cpp
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Expand Up @@ -678,7 +678,7 @@ void darwin::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// to generate executables.
if (getToolChain().getDriver().IsFlangMode()) {
addFortranRuntimeLibraryPath(getToolChain(), Args, CmdArgs);
addFortranRuntimeLibs(getToolChain(), CmdArgs);
addFortranRuntimeLibs(getToolChain(), Args, CmdArgs);
}

if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs))
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2 changes: 1 addition & 1 deletion clang/lib/Driver/ToolChains/DragonFly.cpp
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Expand Up @@ -153,7 +153,7 @@ void dragonfly::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// AddRunTimeLibs).
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
addFortranRuntimeLibs(ToolChain, CmdArgs);
addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
CmdArgs.push_back("-lm");
}

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2 changes: 1 addition & 1 deletion clang/lib/Driver/ToolChains/FreeBSD.cpp
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Expand Up @@ -308,7 +308,7 @@ void freebsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// AddRunTimeLibs).
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
addFortranRuntimeLibs(ToolChain, CmdArgs);
addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
if (Profiling)
CmdArgs.push_back("-lm_p");
else
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2 changes: 1 addition & 1 deletion clang/lib/Driver/ToolChains/Gnu.cpp
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Expand Up @@ -584,7 +584,7 @@ void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// AddRunTimeLibs).
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
addFortranRuntimeLibs(ToolChain, CmdArgs);
addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
CmdArgs.push_back("-lm");
}

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2 changes: 1 addition & 1 deletion clang/lib/Driver/ToolChains/Haiku.cpp
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Expand Up @@ -104,7 +104,7 @@ void haiku::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// AddRunTimeLibs).
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
addFortranRuntimeLibs(ToolChain, CmdArgs);
addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
}

CmdArgs.push_back("-lgcc");
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2 changes: 1 addition & 1 deletion clang/lib/Driver/ToolChains/MSVC.cpp
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Expand Up @@ -131,7 +131,7 @@ void visualstudio::Linker::ConstructJob(Compilation &C, const JobAction &JA,

if (C.getDriver().IsFlangMode()) {
addFortranRuntimeLibraryPath(TC, Args, CmdArgs);
addFortranRuntimeLibs(TC, CmdArgs);
addFortranRuntimeLibs(TC, Args, CmdArgs);

// Inform the MSVC linker that we're generating a console application, i.e.
// one with `main` as the "user-defined" entry point. The `main` function is
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2 changes: 1 addition & 1 deletion clang/lib/Driver/ToolChains/MinGW.cpp
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Expand Up @@ -249,7 +249,7 @@ void tools::MinGW::Linker::ConstructJob(Compilation &C, const JobAction &JA,

if (C.getDriver().IsFlangMode()) {
addFortranRuntimeLibraryPath(TC, Args, CmdArgs);
addFortranRuntimeLibs(TC, CmdArgs);
addFortranRuntimeLibs(TC, Args, CmdArgs);
}

// TODO: Add profile stuff here
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2 changes: 1 addition & 1 deletion clang/lib/Driver/ToolChains/NetBSD.cpp
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Expand Up @@ -324,7 +324,7 @@ void netbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// AddRunTimeLibs).
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
addFortranRuntimeLibs(ToolChain, CmdArgs);
addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
CmdArgs.push_back("-lm");
}

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2 changes: 1 addition & 1 deletion clang/lib/Driver/ToolChains/OpenBSD.cpp
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Expand Up @@ -223,7 +223,7 @@ void openbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// AddRunTimeLibs).
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
addFortranRuntimeLibs(ToolChain, CmdArgs);
addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
if (Profiling)
CmdArgs.push_back("-lm_p");
else
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4 changes: 2 additions & 2 deletions clang/lib/Driver/ToolChains/Solaris.cpp
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Expand Up @@ -228,8 +228,8 @@ void solaris::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// to generate executables. As Fortran runtime depends on the C runtime,
// these dependencies need to be listed before the C runtime below.
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
addFortranRuntimeLibs(ToolChain, CmdArgs);
addFortranRuntimeLibraryPath(getToolChain(), Args, CmdArgs);
addFortranRuntimeLibs(getToolChain(), Args, CmdArgs);
CmdArgs.push_back("-lm");
}
if (Args.hasArg(options::OPT_fstack_protector) ||
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23 changes: 23 additions & 0 deletions flang/lib/Decimal/CMakeLists.txt
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Expand Up @@ -53,3 +53,26 @@ add_flang_library(FortranDecimal INSTALL_WITH_TOOLCHAIN
binary-to-decimal.cpp
decimal-to-binary.cpp
)

if (DEFINED MSVC)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreaded)
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Instead of redefining CMAKE_MSVC_RUNTIME_LIBRARY repeatedly, if you really want to set it specifically for one library, it's better to set the MSVC_RUNTIME_LIBRARY target property instead - see https://cmake.org/cmake/help/latest/prop_tgt/MSVC_RUNTIME_LIBRARY.html.

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Yeah I tried this but inside add_flang_library these are made into custom targets (meaning the target property doesn’t do anything) and I’m not entirely sure why so I didn’t want to mess with it too much. I’ll give it another try

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add_flang_library eventually ends up in llvm/cmake/modules/AddLLVM.cmake's llvm_add_library which calls add_library(${name} STATIC ...). All CMAKE_MSVC_RUNTIME_LIBRARY does is initialize the MSVC_RUNTIME_LIBRARY property on that target when it is created.

You should be able to do

add_flang_library(FortranDecimal.static ...)
set_property(TARGET FortranDecimal.static PROPERTY MSVC_RUNTIME_LIBRARY MultiThreaded)

add_flang_library(FortranDecimal.static INSTALL_WITH_TOOLCHAIN
binary-to-decimal.cpp
decimal-to-binary.cpp
)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreadedDLL)
add_flang_library(FortranDecimal.dynamic INSTALL_WITH_TOOLCHAIN
binary-to-decimal.cpp
decimal-to-binary.cpp
)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreadedDebug)
add_flang_library(FortranDecimal.static_dbg INSTALL_WITH_TOOLCHAIN
binary-to-decimal.cpp
decimal-to-binary.cpp
)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreadedDebugDLL)
add_flang_library(FortranDecimal.dynamic_dbg INSTALL_WITH_TOOLCHAIN
binary-to-decimal.cpp
decimal-to-binary.cpp
)
endif()
40 changes: 34 additions & 6 deletions flang/runtime/CMakeLists.txt
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Expand Up @@ -274,10 +274,38 @@ if (NOT FLANG_EXPERIMENTAL_OMP_OFFLOAD_BUILD STREQUAL "off")
endif()
endif()

add_flang_library(FortranRuntime
${sources}
LINK_LIBS
FortranDecimal
if (NOT DEFINED MSVC)
add_flang_library(FortranRuntime
${sources}
LINK_LIBS
FortranDecimal

INSTALL_WITH_TOOLCHAIN
)
INSTALL_WITH_TOOLCHAIN
)
else()
add_flang_library(FortranRuntime
${sources}
LINK_LIBS
FortranDecimal
)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreaded)
add_flang_library(FortranRuntime.static ${sources}
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When targeting the MSVC ABI, the plain FortranRuntime library added above should be excluded. Only the per-CRT variants should exist, because choosing a CRT variant is not optional.

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The plain FortranRuntime library is linked by the Runtime tests, which need to be built against whatever the user built LLVM with, which we can't necessarily find out that easily I think. It should not have INSTALL_WITH_TOOLCHAIN set though, I'll remove that

LINK_LIBS
FortranDecimal.static
INSTALL_WITH_TOOLCHAIN)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreadedDLL)
add_flang_library(FortranRuntime.dynamic ${sources}
LINK_LIBS
FortranDecimal.dynamic
INSTALL_WITH_TOOLCHAIN)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreadedDebug)
add_flang_library(FortranRuntime.static_dbg ${sources}
LINK_LIBS
FortranDecimal.static_dbg
INSTALL_WITH_TOOLCHAIN)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreadedDebugDLL)
add_flang_library(FortranRuntime.dynamic_dbg ${sources}
LINK_LIBS
FortranDecimal.dynamic_dbg
INSTALL_WITH_TOOLCHAIN)
endif()
18 changes: 18 additions & 0 deletions flang/runtime/FortranMain/CMakeLists.txt
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@@ -1,3 +1,21 @@
add_flang_library(Fortran_main STATIC INSTALL_WITH_TOOLCHAIN
Fortran_main.c
)
if (DEFINED MSVC)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreaded)
add_flang_library(Fortran_main.static STATIC INSTALL_WITH_TOOLCHAIN
Fortran_main.c
)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreadedDLL)
add_flang_library(Fortran_main.dynamic STATIC INSTALL_WITH_TOOLCHAIN
Fortran_main.c
)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreadedDebug)
add_flang_library(Fortran_main.static_dbg STATIC INSTALL_WITH_TOOLCHAIN
Fortran_main.c
)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreadedDebugDLL)
add_flang_library(Fortran_main.dynamic_dbg STATIC INSTALL_WITH_TOOLCHAIN
Fortran_main.c
)
endif()
2 changes: 2 additions & 0 deletions flang/test/Driver/driver-help-hidden.f90
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Expand Up @@ -61,6 +61,8 @@
! CHECK-NEXT: -flto=jobserver Enable LTO in 'full' mode
! CHECK-NEXT: -flto=<value> Set LTO mode
! CHECK-NEXT: -flto Enable LTO in 'full' mode
! CHECK-NEXT: -fms-runtime-lib=<value>
! CHECK-NEXT: Select Windows run-time library
! CHECK-NEXT: -fno-alias-analysis Do not pass alias information on to LLVM (default for unoptimized builds)
! CHECK-NEXT: -fno-automatic Implies the SAVE attribute for non-automatic local objects in subprograms unless RECURSIVE
! CHECK-NEXT: -fno-color-diagnostics Disable colors in diagnostics
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2 changes: 2 additions & 0 deletions flang/test/Driver/driver-help.f90
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Expand Up @@ -51,6 +51,8 @@
! HELP-NEXT: -flto=jobserver Enable LTO in 'full' mode
! HELP-NEXT: -flto=<value> Set LTO mode
! HELP-NEXT: -flto Enable LTO in 'full' mode
! HELP-NEXT: -fms-runtime-lib=<value>
! HELP-NEXT: Select Windows run-time library
! HELP-NEXT: -fno-alias-analysis Do not pass alias information on to LLVM (default for unoptimized builds)
! HELP-NEXT: -fno-automatic Implies the SAVE attribute for non-automatic local objects in subprograms unless RECURSIVE
! HELP-NEXT: -fno-color-diagnostics Disable colors in diagnostics
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47 changes: 39 additions & 8 deletions flang/test/Driver/linker-flags.f90
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Expand Up @@ -12,11 +12,13 @@
! RUN: %flang -### --target=x86_64-unknown-haiku %S/Inputs/hello.f90 2>&1 | FileCheck %s --check-prefixes=CHECK,HAIKU
! RUN: %flang -### --target=x86_64-windows-gnu %S/Inputs/hello.f90 2>&1 | FileCheck %s --check-prefixes=CHECK,MINGW

! NOTE: Clang's driver library, clangDriver, usually adds 'libcmt' and
! 'oldnames' on Windows, but they are not needed when compiling
! Fortran code and they might bring in additional dependencies.
! Make sure they're not added.
! RUN: %flang -### --target=aarch64-windows-msvc -fuse-ld= %S/Inputs/hello.f90 2>&1 | FileCheck %s --check-prefixes=CHECK,MSVC --implicit-check-not libcmt --implicit-check-not oldnames
! NOTE: Clang's driver library, clangDriver, usually adds 'oldnames' on Windows,
! but it is not needed when compiling Fortran code and they might bring in
! additional dependencies. Make sure its not added.
! RUN: %flang -### --target=aarch64-windows-msvc -fuse-ld= %S/Inputs/hello.f90 2>&1 | FileCheck %s --check-prefixes=CHECK,MSVC --implicit-check-not oldnames
! RUN: %flang -### --target=aarch64-windows-msvc -fms-runtime-lib=static_dbg -fuse-ld= %S/Inputs/hello.f90 2>&1 | FileCheck %s --check-prefixes=CHECK,MSVC-DEBUG --implicit-check-not oldnames
! RUN: %flang -### --target=aarch64-windows-msvc -fms-runtime-lib=dll -fuse-ld= %S/Inputs/hello.f90 2>&1 | FileCheck %s --check-prefixes=CHECK,MSVC-DLL --implicit-check-not oldnames
! RUN: %flang -### --target=aarch64-windows-msvc -fms-runtime-lib=dll_dbg -fuse-ld= %S/Inputs/hello.f90 2>&1 | FileCheck %s --check-prefixes=CHECK,MSVC-DLL-DEBUG --implicit-check-not oldnames

! Compiler invocation to generate the object file
! CHECK-LABEL: {{.*}} "-emit-obj"
Expand Down Expand Up @@ -52,8 +54,37 @@
! (lld-)link.exe on Windows platforms. The suffix may not be added
! when the executable is not found or on non-Windows platforms.
! MSVC-LABEL: link
! MSVC-SAME: Fortran_main.lib
! MSVC-SAME: FortranRuntime.lib
! MSVC-SAME: FortranDecimal.lib
! MSVC-SAME: /DEFAULTLIB:clang_rt.builtins-aarch64.lib
! MSVC-SAME: /DEFAULTLIB:libcmt
! MSVC-SAME: Fortran_main.static.lib
! MSVC-SAME: FortranRuntime.static.lib
! MSVC-SAME: FortranDecimal.static.lib
! MSVC-SAME: /subsystem:console
! MSVC-SAME: "[[object_file]]"

! MSVC-DEBUG-LABEL: link
! MSVC-DEBUG-SAME: /DEFAULTLIB:clang_rt.builtins-aarch64.lib
! MSVC-DEBUG-SAME: /DEFAULTLIB:libcmtd
! MSVC-DEBUG-SAME: Fortran_main.static_dbg.lib
! MSVC-DEBUG-SAME: FortranRuntime.static_dbg.lib
! MSVC-DEBUG-SAME: FortranDecimal.static_dbg.lib
! MSVC-DEBUG-SAME: /subsystem:console
! MSVC-DEBUG-SAME: "[[object_file]]"

! MSVC-DLL-LABEL: link
! MSVC-DLL-SAME: /DEFAULTLIB:clang_rt.builtins-aarch64.lib
! MSVC-DLL-SAME: /DEFAULTLIB:msvcrt
! MSVC-DLL-SAME: Fortran_main.dynamic.lib
! MSVC-DLL-SAME: FortranRuntime.dynamic.lib
! MSVC-DLL-SAME: FortranDecimal.dynamic.lib
! MSVC-DLL-SAME: /subsystem:console
! MSVC-DLL-SAME: "[[object_file]]"

! MSVC-DLL-DEBUG-LABEL: link
! MSVC-DLL-DEBUG-SAME: /DEFAULTLIB:clang_rt.builtins-aarch64.lib
! MSVC-DLL-DEBUG-SAME: /DEFAULTLIB:msvcrtd
! MSVC-DLL-DEBUG-SAME: Fortran_main.dynamic_dbg.lib
! MSVC-DLL-DEBUG-SAME: FortranRuntime.dynamic_dbg.lib
! MSVC-DLL-DEBUG-SAME: FortranDecimal.dynamic_dbg.lib
! MSVC-DLL-DEBUG-SAME: /subsystem:console
! MSVC-DLL-DEBUG-SAME: "[[object_file]]"