Windows ToolChain: add VS bin dir to PogramPaths

We have a lot of fancy logic to find Visual Studio, which is currently used
to set the system header include paths.

Use the same code to set the ProgramPaths, which is used for finding programs
such as link.exe. Previously, Clang would just search PATH for link.exe,
but now it should find it if it's able to find Visual Studio.

Differential Revision: http://llvm-reviews.chandlerc.com/D1417

llvm-svn: 188531

diff --git a/clang/lib/Driver/WindowsToolChain.cpp b/clang/lib/Driver/WindowsToolChain.cpp
index 3cbb5c83df9120d27ac3f2bb99535fa690b502a4..65887a7f418be8aaa8b5431fb0b5f3531b4c8fc9 100644 (file)
--- a/clang/lib/Driver/WindowsToolChain.cpp
+++ b/clang/lib/Driver/WindowsToolChain.cpp
@@ -33,42 +33,6 @@ using namespace clang::driver::toolchains;
 using namespace clang;
 using namespace llvm::opt;
 
-Windows::Windows(const Driver &D, const llvm::Triple& Triple,
-                 const ArgList &Args)
-  : ToolChain(D, Triple, Args) {
-}
-
-Tool *Windows::buildLinker() const {
-  return new tools::visualstudio::Link(*this);
-}
-
-Tool *Windows::buildAssembler() const {
-  if (getTriple().getEnvironment() == llvm::Triple::MachO)
-    return new tools::darwin::Assemble(*this);
-  getDriver().Diag(clang::diag::err_no_external_windows_assembler);
-  return NULL;
-}
-
-bool Windows::IsIntegratedAssemblerDefault() const {
-  return true;
-}
-
-bool Windows::IsUnwindTablesDefault() const {
-  return getArch() == llvm::Triple::x86_64;
-}
-
-bool Windows::isPICDefault() const {
-  return getArch() == llvm::Triple::x86_64;
-}
-
-bool Windows::isPIEDefault() const {
-  return false;
-}
-
-bool Windows::isPICDefaultForced() const {
-  return getArch() == llvm::Triple::x86_64;
-}
-
 // FIXME: This probably should goto to some platform utils place.
 #ifdef _MSC_VER
 
@@ -200,7 +164,7 @@ static bool getWindowsSDKDir(std::string &path) {
   return false;
 }
 
-  // Get Visual Studio installation directory.
+// Get Visual Studio installation directory.
 static bool getVisualStudioDir(std::string &path) {
   // First check the environment variables that vsvars32.bat sets.
   const char* vcinstalldir = getenv("VCINSTALLDIR");
@@ -277,6 +241,47 @@ static bool getVisualStudioDir(std::string &path) {
 
 #endif // _MSC_VER
 
+Windows::Windows(const Driver &D, const llvm::Triple& Triple,
+                 const ArgList &Args)
+  : ToolChain(D, Triple, Args) {
+#ifdef _MSC_VER
+  std::string VSDir;
+  if (getVisualStudioDir(VSDir))
+    getProgramPaths().push_back(VSDir + "\\VC\\bin");
+#endif
+}
+
+Tool *Windows::buildLinker() const {
+  return new tools::visualstudio::Link(*this);
+}
+
+Tool *Windows::buildAssembler() const {
+  if (getTriple().getEnvironment() == llvm::Triple::MachO)
+    return new tools::darwin::Assemble(*this);
+  getDriver().Diag(clang::diag::err_no_external_windows_assembler);
+  return NULL;
+}
+
+bool Windows::IsIntegratedAssemblerDefault() const {
+  return true;
+}
+
+bool Windows::IsUnwindTablesDefault() const {
+  return getArch() == llvm::Triple::x86_64;
+}
+
+bool Windows::isPICDefault() const {
+  return getArch() == llvm::Triple::x86_64;
+}
+
+bool Windows::isPIEDefault() const {
+  return false;
+}
+
+bool Windows::isPICDefaultForced() const {
+  return getArch() == llvm::Triple::x86_64;
+}
+
 void Windows::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
                                         ArgStringList &CC1Args) const {
   if (DriverArgs.hasArg(options::OPT_nostdinc))