Path: Add GetEXESuffix() to complement GetDLLSuffix().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118042 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/System/Path.h

@@ -154,6 +154,12 @@ namespace sys {
       /// @brief Returns the current working directory.
       static Path GetCurrentDirectory();
 
+      /// Return the suffix commonly used on file names that contain an
+      /// executable.
+      /// @returns The executable file suffix for the current platform.
+      /// @brief Return the executable file suffix.
+      static StringRef GetEXESuffix();
+
       /// Return the suffix commonly used on file names that contain a shared
       /// object, shared archive, or dynamic link library. Such files are
       /// linked at runtime into a process and their code images are shared

lib/System/Unix/Path.inc

@@ -78,6 +78,10 @@ using namespace sys;
 
 const char sys::PathSeparator = ':';
 
+StringRef Path::GetEXESuffix() {
+  return "";
+}
+
 Path::Path(StringRef p)
   : path(p) {}
 

lib/System/Win32/Path.inc

@@ -45,8 +45,13 @@ static void FlipBackSlashes(std::string& s) {
 
 namespace llvm {
 namespace sys {
+
 const char PathSeparator = ';';
 
+StringRef Path::GetEXESuffix() {
+  return "exe";
+}
+
 Path::Path(llvm::StringRef p)
   : path(p) {
   FlipBackSlashes(path);