amccarth created this revision.
amccarth added a reviewer: rnk.
amccarth added a subscriber: cfe-commits.
`-fms-compatibility-version` was defaulting to 18 (VS 2013), which is a pain if
your environment is pointing to version 19 (VS 2015) libraries.
If cl.exe can be found, this patch uses its version number as the default
instead. It re-uses the existing code to find the Visual Studio binaries
folder and WinAPI methods to check its version. You can still explicitly
specify a compatibility version on the command line. If you don't have cl.exe,
this should be a no-op and you'll get the old default of 18.
This affected the tests, which assumed that if you didn't specific a version,
that it would default to 18, but this won't be true for all machines. So a
couple test cases had to be eliminated and a couple others had to be tweaked to
allow for various outputs.
Addresses: https://llvm.org/bugs/show_bug.cgi?id=27215
http://reviews.llvm.org/D20136
Files:
lib/Driver/MSVCToolChain.cpp
lib/Driver/ToolChains.h
lib/Driver/Tools.cpp
lib/Driver/Tools.h
test/Driver/cl-options.c
test/Driver/msc-version.c
test/Driver/msvc-triple.c
test/Misc/diag-format.c
tools/driver/driver.cpp
Index: tools/driver/driver.cpp
===================================================================
--- tools/driver/driver.cpp
+++ tools/driver/driver.cpp
@@ -501,7 +501,7 @@
#ifdef LLVM_ON_WIN32
// Exit status should not be negative on Win32, unless abnormal termination.
- // Once abnormal termiation was caught, negative status should not be
+ // Once abnormal termination was caught, negative status should not be
// propagated.
if (Res < 0)
Res = 1;
Index: test/Misc/diag-format.c
===================================================================
--- test/Misc/diag-format.c
+++ test/Misc/diag-format.c
@@ -37,7 +37,7 @@
// DEFAULT: {{.*}}:36:8: warning: extra tokens at end of #endif directive [-Wextra-tokens]
// MSVC2010: {{.*}}(36,7) : warning: extra tokens at end of #endif directive [-Wextra-tokens]
// MSVC2013: {{.*}}(36,8) : warning: extra tokens at end of #endif directive [-Wextra-tokens]
-// MSVC: {{.*}}(36,8) : warning: extra tokens at end of #endif directive [-Wextra-tokens]
+// MSVC: {{.*}}(36,8){{ ?}}: warning: extra tokens at end of #endif directive [-Wextra-tokens]
// MSVC2015: {{.*}}(36,8): warning: extra tokens at end of #endif directive [-Wextra-tokens]
// VI: {{.*}} +36:8: warning: extra tokens at end of #endif directive [-Wextra-tokens]
// MSVC2015_ORIG: {{.*}}(36): warning: extra tokens at end of #endif directive [-Wextra-tokens]
Index: test/Driver/msvc-triple.c
===================================================================
--- test/Driver/msvc-triple.c
+++ test/Driver/msvc-triple.c
@@ -1,9 +1,7 @@
-// RUN: %clang -target i686-pc-windows-msvc -S -emit-llvm %s -o - | FileCheck %s --check-prefix=DEFAULT
// RUN: %clang -target i686-pc-windows-msvc19 -S -emit-llvm %s -o - | FileCheck %s --check-prefix=TARGET-19
// RUN: %clang -target i686-pc-windows-msvc -S -emit-llvm %s -o - -fms-compatibility-version=19 | FileCheck %s --check-prefix=OVERRIDE-19
// RUN: %clang -target i686-pc-windows-msvc-elf -S -emit-llvm %s -o - | FileCheck %s --check-prefix=ELF-DEFAULT
-// DEFAULT: target triple = "i686-pc-windows-msvc18.0.0"
// TARGET-19: target triple = "i686-pc-windows-msvc19.0.0"
// OVERRIDE-19: target triple = "i686-pc-windows-msvc19.0.0"
-// ELF-DEFAULT: target triple = "i686-pc-windows-msvc18.0.0-elf"
+// ELF-DEFAULT: target triple = "i686-pc-windows-msvc{{.*}}-elf"
Index: test/Driver/msc-version.c
===================================================================
--- test/Driver/msc-version.c
+++ test/Driver/msc-version.c
@@ -1,15 +1,4 @@
//
-// Verify defaults
-//
-
-// RUN: %clang -target i686-windows -fms-compatibility -dM -E - </dev/null -o - | FileCheck %s -check-prefix CHECK-NO-MSC-VERSION
-
-// CHECK-NO-MSC-VERSION: _MSC_BUILD 1
-// CHECK-NO-MSC-VERSION: _MSC_FULL_VER 180000000
-// CHECK-NO-MSC-VERSION: _MSC_VER 1800
-
-
-//
// Verify -fms-compatibility-version parsing
//
Index: test/Driver/cl-options.c
===================================================================
--- test/Driver/cl-options.c
+++ test/Driver/cl-options.c
@@ -387,7 +387,7 @@
// RTTI-NOT: "-fno-rtti"
// thread safe statics are off for versions < 19.
-// RUN: %clang_cl /c -### -- %s 2>&1 | FileCheck -check-prefix=NoThreadSafeStatics %s
+// RUN: %clang_cl /c -### -fms-compatibility-version=18 -- %s 2>&1 | FileCheck -check-prefix=NoThreadSafeStatics %s
// RUN: %clang_cl /Zc:threadSafeInit /Zc:threadSafeInit- /c -### -- %s 2>&1 | FileCheck -check-prefix=NoThreadSafeStatics %s
// NoThreadSafeStatics: "-fno-threadsafe-statics"
Index: lib/Driver/Tools.h
===================================================================
--- lib/Driver/Tools.h
+++ lib/Driver/Tools.h
@@ -682,7 +682,8 @@
/// Visual studio tools.
namespace visualstudio {
-VersionTuple getMSVCVersion(const Driver *D, const llvm::Triple &Triple,
+VersionTuple getMSVCVersion(const Driver *D, const ToolChain &TC,
+ const llvm::Triple &Triple,
const llvm::opt::ArgList &Args, bool IsWindowsMSVC);
class LLVM_LIBRARY_VISIBILITY Linker : public Tool {
Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -3291,7 +3291,7 @@
Result.append(UID.begin(), UID.end());
}
-VersionTuple visualstudio::getMSVCVersion(const Driver *D,
+VersionTuple visualstudio::getMSVCVersion(const Driver *D, const ToolChain &TC,
const llvm::Triple &Triple,
const llvm::opt::ArgList &Args,
bool IsWindowsMSVC) {
@@ -3333,8 +3333,15 @@
if (Major || Minor || Micro)
return VersionTuple(Major, Minor, Micro);
- // FIXME: Consider bumping this to 19 (MSVC2015) soon.
- return VersionTuple(18);
+ if (IsWindowsMSVC) {
+ const auto &MSVC = static_cast<const toolchains::MSVCToolChain &>(TC);
+ VersionTuple MSVT = MSVC.getMSVCVersionFromExe();
+ if (!MSVT.empty())
+ return MSVT;
+
+ // FIXME: Consider bumping this to 19 (MSVC2015) soon.
+ return VersionTuple(18);
+ }
}
return VersionTuple();
}
@@ -5224,7 +5231,7 @@
// -fms-compatibility-version=18.00 is default.
VersionTuple MSVT = visualstudio::getMSVCVersion(
- &D, getToolChain().getTriple(), Args, IsWindowsMSVC);
+ &D, getToolChain(), getToolChain().getTriple(), Args, IsWindowsMSVC);
if (!MSVT.empty())
CmdArgs.push_back(
Args.MakeArgString("-fms-compatibility-version=" + MSVT.getAsString()));
Index: lib/Driver/ToolChains.h
===================================================================
--- lib/Driver/ToolChains.h
+++ lib/Driver/ToolChains.h
@@ -1016,6 +1016,7 @@
bool getVisualStudioInstallDir(std::string &path) const;
bool getVisualStudioBinariesFolder(const char *clangProgramPath,
std::string &path) const;
+ VersionTuple getMSVCVersionFromExe() const;
std::string ComputeEffectiveClangTriple(const llvm::opt::ArgList &Args,
types::ID InputType) const override;
Index: lib/Driver/MSVCToolChain.cpp
===================================================================
--- lib/Driver/MSVCToolChain.cpp
+++ lib/Driver/MSVCToolChain.cpp
@@ -37,6 +37,8 @@
#define NOMINMAX
#endif
#include <windows.h>
+
+ #pragma comment(lib, "version.lib")
#endif
using namespace clang::driver;
@@ -457,6 +459,42 @@
return true;
}
+VersionTuple MSVCToolChain::getMSVCVersionFromExe() const {
+ VersionTuple Version;
+#ifdef USE_WIN32
+ std::string BinPath;
+ if (!getVisualStudioBinariesFolder("", BinPath)) {
+ return Version;
+ }
+ SmallString<128> ClExe = BinPath;
+ llvm::sys::path::append(ClExe, "cl.exe");
+
+ const DWORD VersionSize = ::GetFileVersionInfoSizeA(ClExe.c_str(), nullptr);
+ if (VersionSize == 0) {
+ return Version;
+ }
+ std::vector<char> VersionBlock(VersionSize);
+ if (!::GetFileVersionInfoA(ClExe.c_str(), 0, VersionSize,
+ VersionBlock.data())) {
+ return Version;
+ }
+ VS_FIXEDFILEINFO *FileInfo = nullptr;
+ UINT FileInfoSize = 0;
+ if (!::VerQueryValueA(VersionBlock.data(), "\\",
+ reinterpret_cast<LPVOID *>(&FileInfo), &FileInfoSize) ||
+ FileInfoSize < sizeof(*FileInfo)) {
+ return Version;
+ }
+
+ const unsigned Major = (FileInfo->dwFileVersionMS >> 16) & 0xFFFF;
+ const unsigned Minor = (FileInfo->dwFileVersionMS ) & 0xFFFF;
+ const unsigned Micro = (FileInfo->dwFileVersionLS >> 16) & 0xFFFF;
+
+ Version = VersionTuple(Major, Minor, Micro);
+#endif
+ return Version;
+}
+
// Get Visual Studio installation directory.
bool MSVCToolChain::getVisualStudioInstallDir(std::string &path) const {
// First check the environment variables that vsvars32.bat sets.
@@ -618,7 +656,7 @@
ToolChain::ComputeEffectiveClangTriple(Args, InputType);
llvm::Triple Triple(TripleStr);
VersionTuple MSVT =
- tools::visualstudio::getMSVCVersion(/*D=*/nullptr, Triple, Args,
+ tools::visualstudio::getMSVCVersion(/*D=*/nullptr, *this, Triple, Args,
/*IsWindowsMSVC=*/true);
if (MSVT.empty())
return TripleStr;
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