[flang-commits] [flang] [clang] [flang] Add runtimes using --dependent-lib on MSVC targets (PR #72519)
David Truby via flang-commits
flang-commits at lists.llvm.org
Tue Nov 21 07:15:08 PST 2023
https://github.com/DavidTruby updated https://github.com/llvm/llvm-project/pull/72519
>From eeb1e7c7b7905d541c9359bd1800fdfb70f0219e Mon Sep 17 00:00:00 2001
From: David Truby <david at truby.dev>
Date: Thu, 16 Nov 2023 14:32:27 +0000
Subject: [PATCH 1/2] [flang] Add runtimes using --dependent-lib on MSVC
targets
This patch uses the added --dependent-lib support to add the relevant
runtimes on MSVC targets as `/DEFAULTLIB:` sections in the object file
rather than on the link line. This should help CMake support for flang
on Windows.
---
clang/lib/Driver/ToolChains/CommonArgs.cpp | 43 +-------------
clang/lib/Driver/ToolChains/CommonArgs.h | 2 +-
clang/lib/Driver/ToolChains/Darwin.cpp | 2 +-
clang/lib/Driver/ToolChains/DragonFly.cpp | 2 +-
clang/lib/Driver/ToolChains/Flang.cpp | 57 +++++++++++++++++++
clang/lib/Driver/ToolChains/FreeBSD.cpp | 2 +-
clang/lib/Driver/ToolChains/Gnu.cpp | 2 +-
clang/lib/Driver/ToolChains/Haiku.cpp | 2 +-
clang/lib/Driver/ToolChains/MSVC.cpp | 2 +-
clang/lib/Driver/ToolChains/MinGW.cpp | 2 +-
clang/lib/Driver/ToolChains/NetBSD.cpp | 2 +-
clang/lib/Driver/ToolChains/OpenBSD.cpp | 2 +-
clang/lib/Driver/ToolChains/Solaris.cpp | 2 +-
flang/test/Driver/linker-flags.f90 | 35 ------------
.../test/Driver/msvc-dependent-lib-flags.f90 | 36 ++++++++++++
15 files changed, 107 insertions(+), 86 deletions(-)
create mode 100644 flang/test/Driver/msvc-dependent-lib-flags.f90
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 5d2cd1959b06925..55951162df50a75 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -977,47 +977,10 @@ bool tools::addOpenMPRuntime(ArgStringList &CmdArgs, const ToolChain &TC,
return true;
}
-void tools::addFortranRuntimeLibs(const ToolChain &TC, const ArgList &Args,
+void tools::addFortranRuntimeLibs(const ToolChain &TC,
llvm::opt::ArgStringList &CmdArgs) {
- if (TC.getTriple().isKnownWindowsMSVCEnvironment()) {
- CmdArgs.push_back(Args.MakeArgString(
- "/DEFAULTLIB:" + TC.getCompilerRTBasename(Args, "builtins")));
- unsigned RTOptionID = options::OPT__SLASH_MT;
- 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);
- }
- 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;
- 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 {
+ // These are handled by adding link options to the object file on Windows
+ if (!TC.getTriple().isKnownWindowsMSVCEnvironment()) {
CmdArgs.push_back("-lFortran_main");
CmdArgs.push_back("-lFortranRuntime");
CmdArgs.push_back("-lFortranDecimal");
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.h b/clang/lib/Driver/ToolChains/CommonArgs.h
index 0a0951c5386e601..f364c9793c9be62 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.h
+++ b/clang/lib/Driver/ToolChains/CommonArgs.h
@@ -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, const llvm::opt::ArgList &Args,
+void addFortranRuntimeLibs(const ToolChain &TC,
llvm::opt::ArgStringList &CmdArgs);
/// Adds the path for the Fortran runtime libraries to \p CmdArgs.
diff --git a/clang/lib/Driver/ToolChains/Darwin.cpp b/clang/lib/Driver/ToolChains/Darwin.cpp
index 7c3d4982d8f6a8c..1f61bb02c6ae226 100644
--- a/clang/lib/Driver/ToolChains/Darwin.cpp
+++ b/clang/lib/Driver/ToolChains/Darwin.cpp
@@ -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(), Args, CmdArgs);
+ addFortranRuntimeLibs(getToolChain(), CmdArgs);
}
if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs))
diff --git a/clang/lib/Driver/ToolChains/DragonFly.cpp b/clang/lib/Driver/ToolChains/DragonFly.cpp
index 9942fc632e0a917..181d0ad0d834b2b 100644
--- a/clang/lib/Driver/ToolChains/DragonFly.cpp
+++ b/clang/lib/Driver/ToolChains/DragonFly.cpp
@@ -153,7 +153,7 @@ void dragonfly::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// AddRunTimeLibs).
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
- addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
+ addFortranRuntimeLibs(ToolChain, CmdArgs);
CmdArgs.push_back("-lm");
}
diff --git a/clang/lib/Driver/ToolChains/Flang.cpp b/clang/lib/Driver/ToolChains/Flang.cpp
index 8bdd920c3dcbb79..01f07b9228256cf 100644
--- a/clang/lib/Driver/ToolChains/Flang.cpp
+++ b/clang/lib/Driver/ToolChains/Flang.cpp
@@ -204,6 +204,59 @@ void Flang::AddAArch64TargetArgs(const ArgList &Args,
}
}
+static void processVSRuntimeLibrary(const ToolChain &TC, const ArgList &Args,
+ ArgStringList &CmdArgs) {
+ assert(TC.getTriple().isKnownWindowsMSVCEnvironment() &&
+ "can only add VS runtime library on Windows!");
+ if (TC.getTriple().isKnownWindowsMSVCEnvironment()) {
+ CmdArgs.push_back(Args.MakeArgString(
+ "--dependent-lib=" + TC.getCompilerRTBasename(Args, "builtins")));
+ }
+ unsigned RTOptionID = options::OPT__SLASH_MT;
+ 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);
+ }
+ switch (RTOptionID) {
+ case options::OPT__SLASH_MT:
+ CmdArgs.push_back("-D_MT");
+ CmdArgs.push_back("--dependent-lib=libcmt");
+ CmdArgs.push_back("--dependent-lib=Fortran_main.static.lib");
+ CmdArgs.push_back("--dependent-lib=FortranRuntime.static.lib");
+ CmdArgs.push_back("--dependent-lib=FortranDecimal.static.lib");
+ break;
+ case options::OPT__SLASH_MTd:
+ CmdArgs.push_back("-D_MT");
+ CmdArgs.push_back("-D_DEBUG");
+ CmdArgs.push_back("--dependent-lib=libcmtd");
+ CmdArgs.push_back("--dependent-lib=Fortran_main.static_dbg.lib");
+ CmdArgs.push_back("--dependent-lib=FortranRuntime.static_dbg.lib");
+ CmdArgs.push_back("--dependent-lib=FortranDecimal.static_dbg.lib");
+ break;
+ case options::OPT__SLASH_MD:
+ CmdArgs.push_back("-D_MT");
+ CmdArgs.push_back("-D_DLL");
+ CmdArgs.push_back("--dependent-lib=msvcrt");
+ CmdArgs.push_back("--dependent-lib=Fortran_main.dynamic.lib");
+ CmdArgs.push_back("--dependent-lib=FortranRuntime.dynamic.lib");
+ CmdArgs.push_back("--dependent-lib=FortranDecimal.dynamic.lib");
+ break;
+ case options::OPT__SLASH_MDd:
+ CmdArgs.push_back("-D_MT");
+ CmdArgs.push_back("-D_DEBUG");
+ CmdArgs.push_back("-D_DLL");
+ CmdArgs.push_back("--dependent-lib=msvcrtd");
+ CmdArgs.push_back("--dependent-lib=Fortran_main.dynamic_dbg.lib");
+ CmdArgs.push_back("--dependent-lib=FortranRuntime.dynamic_dbg.lib");
+ CmdArgs.push_back("--dependent-lib=FortranDecimal.dynamic_dbg.lib");
+ break;
+ }
+}
+
void Flang::addTargetOptions(const ArgList &Args,
ArgStringList &CmdArgs) const {
const ToolChain &TC = getToolChain();
@@ -267,6 +320,10 @@ void Flang::addTargetOptions(const ArgList &Args,
}
}
+ if (Triple.isKnownWindowsMSVCEnvironment()) {
+ processVSRuntimeLibrary(TC, Args, CmdArgs);
+ }
+
// TODO: Add target specific flags, ABI, mtune option etc.
}
diff --git a/clang/lib/Driver/ToolChains/FreeBSD.cpp b/clang/lib/Driver/ToolChains/FreeBSD.cpp
index d46feb3459a6344..d08764aeef77539 100644
--- a/clang/lib/Driver/ToolChains/FreeBSD.cpp
+++ b/clang/lib/Driver/ToolChains/FreeBSD.cpp
@@ -310,7 +310,7 @@ void freebsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// AddRunTimeLibs).
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
- addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
+ addFortranRuntimeLibs(ToolChain, CmdArgs);
if (Profiling)
CmdArgs.push_back("-lm_p");
else
diff --git a/clang/lib/Driver/ToolChains/Gnu.cpp b/clang/lib/Driver/ToolChains/Gnu.cpp
index ba95ce9c5a28153..d7e347f54eef393 100644
--- a/clang/lib/Driver/ToolChains/Gnu.cpp
+++ b/clang/lib/Driver/ToolChains/Gnu.cpp
@@ -568,7 +568,7 @@ void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// AddRunTimeLibs).
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
- addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
+ addFortranRuntimeLibs(ToolChain, CmdArgs);
CmdArgs.push_back("-lm");
}
diff --git a/clang/lib/Driver/ToolChains/Haiku.cpp b/clang/lib/Driver/ToolChains/Haiku.cpp
index e0d94035823fd37..3fe92054ac53e15 100644
--- a/clang/lib/Driver/ToolChains/Haiku.cpp
+++ b/clang/lib/Driver/ToolChains/Haiku.cpp
@@ -118,7 +118,7 @@ void haiku::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// AddRunTimeLibs).
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
- addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
+ addFortranRuntimeLibs(ToolChain, CmdArgs);
}
CmdArgs.push_back("-lgcc");
diff --git a/clang/lib/Driver/ToolChains/MSVC.cpp b/clang/lib/Driver/ToolChains/MSVC.cpp
index 8a4a174c90ea855..4966d102c51f1ac 100644
--- a/clang/lib/Driver/ToolChains/MSVC.cpp
+++ b/clang/lib/Driver/ToolChains/MSVC.cpp
@@ -131,7 +131,7 @@ void visualstudio::Linker::ConstructJob(Compilation &C, const JobAction &JA,
if (C.getDriver().IsFlangMode()) {
addFortranRuntimeLibraryPath(TC, Args, CmdArgs);
- addFortranRuntimeLibs(TC, Args, CmdArgs);
+ addFortranRuntimeLibs(TC, 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
diff --git a/clang/lib/Driver/ToolChains/MinGW.cpp b/clang/lib/Driver/ToolChains/MinGW.cpp
index 5d7f8675daf8d28..39d767795445dbe 100644
--- a/clang/lib/Driver/ToolChains/MinGW.cpp
+++ b/clang/lib/Driver/ToolChains/MinGW.cpp
@@ -249,7 +249,7 @@ void tools::MinGW::Linker::ConstructJob(Compilation &C, const JobAction &JA,
if (C.getDriver().IsFlangMode()) {
addFortranRuntimeLibraryPath(TC, Args, CmdArgs);
- addFortranRuntimeLibs(TC, Args, CmdArgs);
+ addFortranRuntimeLibs(TC, CmdArgs);
}
// TODO: Add profile stuff here
diff --git a/clang/lib/Driver/ToolChains/NetBSD.cpp b/clang/lib/Driver/ToolChains/NetBSD.cpp
index 240bf5764b9cce2..90b195a007caa78 100644
--- a/clang/lib/Driver/ToolChains/NetBSD.cpp
+++ b/clang/lib/Driver/ToolChains/NetBSD.cpp
@@ -325,7 +325,7 @@ void netbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// AddRunTimeLibs).
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
- addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
+ addFortranRuntimeLibs(ToolChain, CmdArgs);
CmdArgs.push_back("-lm");
}
diff --git a/clang/lib/Driver/ToolChains/OpenBSD.cpp b/clang/lib/Driver/ToolChains/OpenBSD.cpp
index c8f02161d8311e3..3722c27e7d01761 100644
--- a/clang/lib/Driver/ToolChains/OpenBSD.cpp
+++ b/clang/lib/Driver/ToolChains/OpenBSD.cpp
@@ -237,7 +237,7 @@ void openbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// AddRunTimeLibs).
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
- addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
+ addFortranRuntimeLibs(ToolChain, CmdArgs);
if (Profiling)
CmdArgs.push_back("-lm_p");
else
diff --git a/clang/lib/Driver/ToolChains/Solaris.cpp b/clang/lib/Driver/ToolChains/Solaris.cpp
index 96757f07a54974f..badfc33a74f2958 100644
--- a/clang/lib/Driver/ToolChains/Solaris.cpp
+++ b/clang/lib/Driver/ToolChains/Solaris.cpp
@@ -229,7 +229,7 @@ void solaris::Linker::ConstructJob(Compilation &C, const JobAction &JA,
// these dependencies need to be listed before the C runtime below.
if (D.IsFlangMode()) {
addFortranRuntimeLibraryPath(getToolChain(), Args, CmdArgs);
- addFortranRuntimeLibs(getToolChain(), Args, CmdArgs);
+ addFortranRuntimeLibs(getToolChain(), CmdArgs);
CmdArgs.push_back("-lm");
}
if (Args.hasArg(options::OPT_fstack_protector) ||
diff --git a/flang/test/Driver/linker-flags.f90 b/flang/test/Driver/linker-flags.f90
index a1417057d4da068..85c4d60b3f09862 100644
--- a/flang/test/Driver/linker-flags.f90
+++ b/flang/test/Driver/linker-flags.f90
@@ -16,9 +16,6 @@
! 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"
@@ -54,37 +51,5 @@
! (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: /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]]"
diff --git a/flang/test/Driver/msvc-dependent-lib-flags.f90 b/flang/test/Driver/msvc-dependent-lib-flags.f90
new file mode 100644
index 000000000000000..9d971d5b1ec66fa
--- /dev/null
+++ b/flang/test/Driver/msvc-dependent-lib-flags.f90
@@ -0,0 +1,36 @@
+! RUN: %flang -### --target=aarch64-windows-msvc -fuse-ld= %S/Inputs/hello.f90 -v 2>&1 | FileCheck %s --check-prefixes=MSVC
+! RUN: %flang -### --target=aarch64-windows-msvc -fms-runtime-lib=static_dbg -fuse-ld= %S/Inputs/hello.f90 -v 2>&1 | FileCheck %s --check-prefixes=MSVC-DEBUG
+! RUN: %flang -### --target=aarch64-windows-msvc -fms-runtime-lib=dll -fuse-ld= %S/Inputs/hello.f90 -v 2>&1 | FileCheck %s --check-prefixes=MSVC-DLL
+! RUN: %flang -### --target=aarch64-windows-msvc -fms-runtime-lib=dll_dbg -fuse-ld= %S/Inputs/hello.f90 -v 2>&1 | FileCheck %s --check-prefixes=MSVC-DLL-DEBUG
+
+! MSVC: --dependent-lib=clang_rt.builtins-aarch64.lib
+! MSVC-SAME: -D_MT
+! MSVC-SAME: --dependent-lib=libcmt
+! MSVC-SAME: --dependent-lib=Fortran_main.static.lib
+! MSVC-SAME: --dependent-lib=FortranRuntime.static.lib
+! MSVC-SAME: --dependent-lib=FortranDecimal.static.lib
+
+! MSVC-DEBUG: --dependent-lib=clang_rt.builtins-aarch64.lib
+! MSVC-DEBUG-SAME: -D_MT
+! MSVC-DEBUG-SAME: -D_DEBUG
+! MSVC-DEBUG-SAME: --dependent-lib=libcmtd
+! MSVC-DEBUG-SAME: --dependent-lib=Fortran_main.static_dbg.lib
+! MSVC-DEBUG-SAME: --dependent-lib=FortranRuntime.static_dbg.lib
+! MSVC-DEBUG-SAME: --dependent-lib=FortranDecimal.static_dbg.lib
+
+! MSVC-DLL: --dependent-lib=clang_rt.builtins-aarch64.lib
+! MSVC-DLL-SAME: -D_MT
+! MSVC-DLL-SAME: -D_DLL
+! MSVC-DLL-SAME: --dependent-lib=msvcrt
+! MSVC-DLL-SAME: --dependent-lib=Fortran_main.dynamic.lib
+! MSVC-DLL-SAME: --dependent-lib=FortranRuntime.dynamic.lib
+! MSVC-DLL-SAME: --dependent-lib=FortranDecimal.dynamic.lib
+
+! MSVC-DLL-DEBUG: --dependent-lib=clang_rt.builtins-aarch64.lib
+! MSVC-DLL-DEBUG-SAME: -D_MT
+! MSVC-DLL-DEBUG-SAME: -D_DEBUG
+! MSVC-DLL-DEBUG-SAME: -D_DLL
+! MSVC-DLL-DEBUG-SAME: --dependent-lib=msvcrtd
+! MSVC-DLL-DEBUG-SAME: --dependent-lib=Fortran_main.dynamic_dbg.lib
+! MSVC-DLL-DEBUG-SAME: --dependent-lib=FortranRuntime.dynamic_dbg.lib
+! MSVC-DLL-DEBUG-SAME: --dependent-lib=FortranDecimal.dynamic_dbg.lib
>From c279cfbc95d708ad93c31cd2228acc52dbfb6245 Mon Sep 17 00:00:00 2001
From: David Truby <david at truby.dev>
Date: Tue, 21 Nov 2023 15:14:52 +0000
Subject: [PATCH 2/2] Small fixes for review
---
clang/lib/Driver/ToolChains/CommonArgs.cpp | 3 ++-
flang/test/Driver/msvc-dependent-lib-flags.f90 | 8 ++++----
2 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 55951162df50a75..1f31c6395206ee8 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -979,7 +979,8 @@ bool tools::addOpenMPRuntime(ArgStringList &CmdArgs, const ToolChain &TC,
void tools::addFortranRuntimeLibs(const ToolChain &TC,
llvm::opt::ArgStringList &CmdArgs) {
- // These are handled by adding link options to the object file on Windows
+ // These are handled earlier on Windows by telling the frontend driver to add
+ // the correct libraries to link against as dependents in the object file.
if (!TC.getTriple().isKnownWindowsMSVCEnvironment()) {
CmdArgs.push_back("-lFortran_main");
CmdArgs.push_back("-lFortranRuntime");
diff --git a/flang/test/Driver/msvc-dependent-lib-flags.f90 b/flang/test/Driver/msvc-dependent-lib-flags.f90
index 9d971d5b1ec66fa..80352a82c9334a9 100644
--- a/flang/test/Driver/msvc-dependent-lib-flags.f90
+++ b/flang/test/Driver/msvc-dependent-lib-flags.f90
@@ -1,7 +1,7 @@
-! RUN: %flang -### --target=aarch64-windows-msvc -fuse-ld= %S/Inputs/hello.f90 -v 2>&1 | FileCheck %s --check-prefixes=MSVC
-! RUN: %flang -### --target=aarch64-windows-msvc -fms-runtime-lib=static_dbg -fuse-ld= %S/Inputs/hello.f90 -v 2>&1 | FileCheck %s --check-prefixes=MSVC-DEBUG
-! RUN: %flang -### --target=aarch64-windows-msvc -fms-runtime-lib=dll -fuse-ld= %S/Inputs/hello.f90 -v 2>&1 | FileCheck %s --check-prefixes=MSVC-DLL
-! RUN: %flang -### --target=aarch64-windows-msvc -fms-runtime-lib=dll_dbg -fuse-ld= %S/Inputs/hello.f90 -v 2>&1 | FileCheck %s --check-prefixes=MSVC-DLL-DEBUG
+! RUN: %flang -### --target=aarch64-windows-msvc %S/Inputs/hello.f90 -v 2>&1 | FileCheck %s --check-prefixes=MSVC
+! RUN: %flang -### --target=aarch64-windows-msvc -fms-runtime-lib=static_dbg %S/Inputs/hello.f90 -v 2>&1 | FileCheck %s --check-prefixes=MSVC-DEBUG
+! RUN: %flang -### --target=aarch64-windows-msvc -fms-runtime-lib=dll %S/Inputs/hello.f90 -v 2>&1 | FileCheck %s --check-prefixes=MSVC-DLL
+! RUN: %flang -### --target=aarch64-windows-msvc -fms-runtime-lib=dll_dbg %S/Inputs/hello.f90 -v 2>&1 | FileCheck %s --check-prefixes=MSVC-DLL-DEBUG
! MSVC: --dependent-lib=clang_rt.builtins-aarch64.lib
! MSVC-SAME: -D_MT
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