Remove useless parameter "WantFile" from Driver::GetProgramPath().

This parameter is useless because nowhere used explicitly and always
gets its default value - "false".

The patch reviewed by Rafael Espindola.

llvm-svn: 165149

clang/include/clang/Driver/Driver.h

@@ -335,13 +335,9 @@ public:
   ///
   /// \param TC - The provided tool chain for additional information on
   /// directories to search.
-  ///
-  /// \param WantFile - False when searching for an executable file, otherwise
-  /// true.  Defaults to false.
   //
   // FIXME: This should be in CompilationInfo.
-  std::string GetProgramPath(const char *Name, const ToolChain &TC,
-                              bool WantFile = false) const;
+  std::string GetProgramPath(const char *Name, const ToolChain &TC) const;
 
   /// HandleImmediateArgs - Handle any arguments which should be
   /// treated before building actions or binding tools.

clang/include/clang/Driver/ToolChain.h

@@ -115,7 +115,7 @@ public:
   // Helper methods
 
   std::string GetFilePath(const char *Name) const;
-  std::string GetProgramPath(const char *Name, bool WantFile = false) const;
+  std::string GetProgramPath(const char *Name) const;
 
   // Platform defaults information
 

clang/lib/Driver/Driver.cpp

@@ -1620,14 +1620,8 @@ std::string Driver::GetFilePath(const char *Name, const ToolChain &TC) const {
   return Name;
 }
 
-static bool isPathExecutable(llvm::sys::Path &P, bool WantFile) {
-    bool Exists;
-    return (WantFile ? !llvm::sys::fs::exists(P.str(), Exists) && Exists
-                 : P.canExecute());
-}
-
-std::string Driver::GetProgramPath(const char *Name, const ToolChain &TC,
-                                   bool WantFile) const {
+std::string Driver::GetProgramPath(const char *Name,
+                                   const ToolChain &TC) const {
   // FIXME: Needs a better variable than DefaultTargetTriple
   std::string TargetSpecificExecutable(DefaultTargetTriple + "-" + Name);
   // Respect a limited subset of the '-Bprefix' functionality in GCC by
@@ -1636,10 +1630,10 @@ std::string Driver::GetProgramPath(const char *Name, const ToolChain &TC,
        ie = PrefixDirs.end(); it != ie; ++it) {
     llvm::sys::Path P(*it);
     P.appendComponent(TargetSpecificExecutable);
-    if (isPathExecutable(P, WantFile)) return P.str();
+    if (P.canExecute()) return P.str();
     P.eraseComponent();
     P.appendComponent(Name);
-    if (isPathExecutable(P, WantFile)) return P.str();
+    if (P.canExecute()) return P.str();
   }
 
   const ToolChain::path_list &List = TC.getProgramPaths();
@@ -1647,10 +1641,10 @@ std::string Driver::GetProgramPath(const char *Name, const ToolChain &TC,
          it = List.begin(), ie = List.end(); it != ie; ++it) {
     llvm::sys::Path P(*it);
     P.appendComponent(TargetSpecificExecutable);
-    if (isPathExecutable(P, WantFile)) return P.str();
+    if (P.canExecute()) return P.str();
     P.eraseComponent();
     P.appendComponent(Name);
-    if (isPathExecutable(P, WantFile)) return P.str();
+    if (P.canExecute()) return P.str();
   }
 
   // If all else failed, search the path.

clang/lib/Driver/ToolChain.cpp

@@ -41,8 +41,8 @@ std::string ToolChain::GetFilePath(const char *Name) const {
 
 }
 
-std::string ToolChain::GetProgramPath(const char *Name, bool WantFile) const {
-  return D.GetProgramPath(Name, *this, WantFile);
+std::string ToolChain::GetProgramPath(const char *Name) const {
+  return D.GetProgramPath(Name, *this);
 }
 
 types::ID ToolChain::LookupTypeForExtension(const char *Ext) const {