From d6039e045ff2323428debd9419770e369b89e5b8 Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Fri, 8 Aug 2014 21:35:52 +0000
Subject: [PATCH] Remove dead code. Fixes pr20544.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215243 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Support/FileSystem.h |  8 --------
 lib/Support/Unix/Path.inc         | 13 -------------
 lib/Support/Windows/Path.inc      |  5 -----
 unittests/Support/Path.cpp        | 12 ++++++------
 4 files changed, 6 insertions(+), 32 deletions(-)

diff --git a/include/llvm/Support/FileSystem.h b/include/llvm/Support/FileSystem.h
index 556701c3ba3..fd68d8741fd 100644
--- a/include/llvm/Support/FileSystem.h
+++ b/include/llvm/Support/FileSystem.h
@@ -276,14 +276,6 @@ private:
 ///          platform-specific error_code.
 std::error_code make_absolute(SmallVectorImpl<char> &path);
 
-/// @brief Normalize path separators in \a Path
-///
-/// If the path contains any '\' separators, they are transformed into '/'.
-/// This is particularly useful when cross-compiling Windows on Linux, but is
-/// safe to invoke on Windows, which accepts both characters as a path
-/// separator.
-std::error_code normalize_separators(SmallVectorImpl<char> &Path);
-
 /// @brief Create all the non-existent directories in path.
 ///
 /// @param path Directories to create.
diff --git a/lib/Support/Unix/Path.inc b/lib/Support/Unix/Path.inc
index 623547a95ed..64ea23c0689 100644
--- a/lib/Support/Unix/Path.inc
+++ b/lib/Support/Unix/Path.inc
@@ -272,19 +272,6 @@ std::error_code create_directory(const Twine &path, bool IgnoreExisting) {
   return std::error_code();
 }
 
-std::error_code normalize_separators(SmallVectorImpl<char> &Path) {
-  for (auto PI = Path.begin(), PE = Path.end(); PI < PE; ++PI) {
-    if (*PI == '\\') {
-      auto PN = PI + 1;
-      if (PN < PE && *PN == '\\')
-        ++PI; // increment once, the for loop will move over the escaped slash
-      else
-        *PI = '/';
-    }
-  }
-  return std::error_code();
-}
-
 // Note that we are using symbolic link because hard links are not supported by
 // all filesystems (SMB doesn't).
 std::error_code create_link(const Twine &to, const Twine &from) {
diff --git a/lib/Support/Windows/Path.inc b/lib/Support/Windows/Path.inc
index 7a1bc0447fa..a57f252fbfc 100644
--- a/lib/Support/Windows/Path.inc
+++ b/lib/Support/Windows/Path.inc
@@ -163,11 +163,6 @@ std::error_code create_directory(const Twine &path, bool IgnoreExisting) {
   return std::error_code();
 }
 
-std::error_code normalize_separators(SmallVectorImpl<char> &Path) {
-  (void) Path;
-  return std::error_code();
-}
-
 // We can't use symbolic links for windows.
 std::error_code create_link(const Twine &to, const Twine &from) {
   // Get arguments.
diff --git a/unittests/Support/Path.cpp b/unittests/Support/Path.cpp
index bb1428f4de4..9c156401927 100644
--- a/unittests/Support/Path.cpp
+++ b/unittests/Support/Path.cpp
@@ -640,22 +640,22 @@ TEST(Support, NormalizePath) {
   SmallString<64> Path5("\\a");
   SmallString<64> Path6("a\\");
 
-  ASSERT_NO_ERROR(fs::normalize_separators(Path1));
+  path::native(Path1);
   EXPECT_PATH_IS(Path1, "a", "a");
 
-  ASSERT_NO_ERROR(fs::normalize_separators(Path2));
+  path::native(Path2);
   EXPECT_PATH_IS(Path2, "a/b", "a/b");
 
-  ASSERT_NO_ERROR(fs::normalize_separators(Path3));
+  path::native(Path3);
   EXPECT_PATH_IS(Path3, "a\\b", "a/b");
 
-  ASSERT_NO_ERROR(fs::normalize_separators(Path4));
+  path::native(Path4);
   EXPECT_PATH_IS(Path4, "a\\\\b", "a\\\\b");
 
-  ASSERT_NO_ERROR(fs::normalize_separators(Path5));
+  path::native(Path5);
   EXPECT_PATH_IS(Path5, "\\a", "/a");
 
-  ASSERT_NO_ERROR(fs::normalize_separators(Path6));
+  path::native(Path6);
   EXPECT_PATH_IS(Path6, "a\\", "a/");
 
 #undef EXPECT_PATH_IS
-- 
2.34.1