<div dir="ltr">This warning fires a handful of times in a clang self-host, and ultimately the problem is a false positive as described in <a href="http://llvm.org/bugs/show_bug.cgi?id=18481">http://llvm.org/bugs/show_bug.cgi?id=18481</a></div>
<div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Dec 27, 2013 at 11:46 AM, Will Wilson <span dir="ltr"><<a href="mailto:will@indefiant.com" target="_blank">will@indefiant.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Author: lantictac<br>
Date: Fri Dec 27 13:46:16 2013<br>
New Revision: 198082<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=198082&view=rev" target="_blank">http://llvm.org/viewvc/llvm-project?rev=198082&view=rev</a><br>
Log:<br>
Implement MSVC header search algorithm in MicrosoftMode.<br>
Follows algorithm described here: <a href="http://msdn.microsoft.com/en-us/library/36k2cdd4.aspx" target="_blank">http://msdn.microsoft.com/en-us/library/36k2cdd4.aspx</a><br>
<br>
Added:<br>
    cfe/trunk/test/Preprocessor/microsoft-header-search/<br>
    cfe/trunk/test/Preprocessor/microsoft-header-search.c<br>
    cfe/trunk/test/Preprocessor/microsoft-header-search/a/<br>
    cfe/trunk/test/Preprocessor/microsoft-header-search/a/b/<br>
    cfe/trunk/test/Preprocessor/microsoft-header-search/a/b/include3.h<br>
    cfe/trunk/test/Preprocessor/microsoft-header-search/a/findme.h<br>
    cfe/trunk/test/Preprocessor/microsoft-header-search/a/include2.h<br>
    cfe/trunk/test/Preprocessor/microsoft-header-search/findme.h<br>
    cfe/trunk/test/Preprocessor/microsoft-header-search/include1.h<br>
Modified:<br>
    cfe/trunk/include/clang/Basic/DiagnosticLexKinds.td<br>
    cfe/trunk/include/clang/Lex/HeaderSearch.h<br>
    cfe/trunk/lib/Lex/HeaderSearch.cpp<br>
    cfe/trunk/lib/Lex/PPDirectives.cpp<br>
    cfe/trunk/lib/Rewrite/Frontend/InclusionRewriter.cpp<br>
<br>
Modified: cfe/trunk/include/clang/Basic/DiagnosticLexKinds.td<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticLexKinds.td?rev=198082&r1=198081&r2=198082&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticLexKinds.td?rev=198082&r1=198081&r2=198082&view=diff</a><br>

==============================================================================<br>
--- cfe/trunk/include/clang/Basic/DiagnosticLexKinds.td (original)<br>
+++ cfe/trunk/include/clang/Basic/DiagnosticLexKinds.td Fri Dec 27 13:46:16 2013<br>
@@ -300,6 +300,9 @@ def ext_pp_import_directive : Extension<<br>
   InGroup<DiagGroup<"import-preprocessor-directive-pedantic">>;<br>
 def err_pp_import_directive_ms : Error<<br>
   "#import of type library is an unsupported Microsoft feature">;<br>
+def ext_pp_include_search_ms : ExtWarn<<br>
+  "#include resolved using non-portable MSVC search rules as: %0">,<br>
+  InGroup<DiagGroup<"msvc-include">>;<br>
<br>
 def ext_pp_ident_directive : Extension<"#ident is a language extension">;<br>
 def ext_pp_include_next_directive : Extension<<br>
<br>
Modified: cfe/trunk/include/clang/Lex/HeaderSearch.h<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Lex/HeaderSearch.h?rev=198082&r1=198081&r2=198082&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Lex/HeaderSearch.h?rev=198082&r1=198081&r2=198082&view=diff</a><br>

==============================================================================<br>
--- cfe/trunk/include/clang/Lex/HeaderSearch.h (original)<br>
+++ cfe/trunk/include/clang/Lex/HeaderSearch.h Fri Dec 27 13:46:16 2013<br>
@@ -158,6 +158,8 @@ class HeaderSearch {<br>
   /// \brief Header-search options used to initialize this header search.<br>
   IntrusiveRefCntPtr<HeaderSearchOptions> HSOpts;<br>
<br>
+  DiagnosticsEngine &Diags;<br>
+  SourceManager &SourceMgr;<br>
   FileManager &FileMgr;<br>
   /// \#include search path information.  Requests for \#include "x" search the<br>
   /// directory of the \#including file first, then each directory in SearchDirs<br>
@@ -349,13 +351,15 @@ public:<br>
   /// \returns If successful, this returns 'UsedDir', the DirectoryLookup member<br>
   /// the file was found in, or null if not applicable.<br>
   ///<br>
+  /// \param IncludeLoc Used for diagnostics if valid.<br>
+  ///<br>
   /// \param isAngled indicates whether the file reference is a <> reference.<br>
   ///<br>
   /// \param CurDir If non-null, the file was found in the specified directory<br>
   /// search location.  This is used to implement \#include_next.<br>
   ///<br>
-  /// \param CurFileEnt If non-null, indicates where the \#including file is, in<br>
-  /// case a relative search is needed.<br>
+  /// \param Includers Indicates where the \#including file(s) are, in case<br>
+  /// relative searches are needed. In reverse order of inclusion.<br>
   ///<br>
   /// \param SearchPath If non-null, will be set to the search path relative<br>
   /// to which the file was found. If the include path is absolute, SearchPath<br>
@@ -368,10 +372,10 @@ public:<br>
   /// \param SuggestedModule If non-null, and the file found is semantically<br>
   /// part of a known module, this will be set to the module that should<br>
   /// be imported instead of preprocessing/parsing the file found.<br>
-  const FileEntry *LookupFile(StringRef Filename, bool isAngled,<br>
-                              const DirectoryLookup *FromDir,<br>
+  const FileEntry *LookupFile(StringRef Filename, SourceLocation IncludeLoc,<br>
+                              bool isAngled, const DirectoryLookup *FromDir,<br>
                               const DirectoryLookup *&CurDir,<br>
-                              const FileEntry *CurFileEnt,<br>
+                              ArrayRef<const FileEntry *> Includers,<br>
                               SmallVectorImpl<char> *SearchPath,<br>
                               SmallVectorImpl<char> *RelativePath,<br>
                               ModuleMap::KnownHeader *SuggestedModule,<br>
<br>
Modified: cfe/trunk/lib/Lex/HeaderSearch.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/HeaderSearch.cpp?rev=198082&r1=198081&r2=198082&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/HeaderSearch.cpp?rev=198082&r1=198081&r2=198082&view=diff</a><br>

==============================================================================<br>
--- cfe/trunk/lib/Lex/HeaderSearch.cpp (original)<br>
+++ cfe/trunk/lib/Lex/HeaderSearch.cpp Fri Dec 27 13:46:16 2013<br>
@@ -12,12 +12,12 @@<br>
 //===----------------------------------------------------------------------===//<br>
<br>
 #include "clang/Lex/HeaderSearch.h"<br>
-#include "clang/Basic/Diagnostic.h"<br>
 #include "clang/Basic/FileManager.h"<br>
 #include "clang/Basic/IdentifierTable.h"<br>
 #include "clang/Lex/HeaderMap.h"<br>
 #include "clang/Lex/HeaderSearchOptions.h"<br>
 #include "clang/Lex/Lexer.h"<br>
+#include "clang/Lex/LexDiagnostic.h"<br>
 #include "llvm/ADT/SmallString.h"<br>
 #include "llvm/Support/Capacity.h"<br>
 #include "llvm/Support/FileSystem.h"<br>
@@ -45,11 +45,11 @@ ExternalHeaderFileInfoSource::~ExternalH<br>
<br>
 HeaderSearch::HeaderSearch(IntrusiveRefCntPtr<HeaderSearchOptions> HSOpts,<br>
                            SourceManager &SourceMgr, DiagnosticsEngine &Diags,<br>
-                           const LangOptions &LangOpts,<br>
+                           const LangOptions &LangOpts,<br>
                            const TargetInfo *Target)<br>
-  : HSOpts(HSOpts), FileMgr(SourceMgr.getFileManager()), FrameworkMap(64),<br>
-    ModMap(SourceMgr, Diags, LangOpts, Target, *this)<br>
-{<br>
+    : HSOpts(HSOpts), Diags(Diags), SourceMgr(SourceMgr),<br>
+      FileMgr(SourceMgr.getFileManager()), FrameworkMap(64),<br>
+      ModMap(SourceMgr, Diags, LangOpts, Target, *this) {<br>
   AngledDirIdx = 0;<br>
   SystemDirIdx = 0;<br>
   NoCurDirSearch = false;<br>
@@ -493,20 +493,15 @@ void HeaderSearch::setTarget(const Targe<br>
<br>
 /// LookupFile - Given a "foo" or \<foo> reference, look up the indicated file,<br>
 /// return null on failure.  isAngled indicates whether the file reference is<br>
-/// for system \#include's or not (i.e. using <> instead of "").  CurFileEnt, if<br>
-/// non-null, indicates where the \#including file is, in case a relative search<br>
-/// is needed.<br>
+/// for system \#include's or not (i.e. using <> instead of ""). Includers, if<br>
+/// non-empty, indicates where the \#including file(s) are, in case a relative<br>
+/// search is needed. Microsoft mode will pass all \#including files.<br>
 const FileEntry *HeaderSearch::LookupFile(<br>
-    StringRef Filename,<br>
-    bool isAngled,<br>
-    const DirectoryLookup *FromDir,<br>
-    const DirectoryLookup *&CurDir,<br>
-    const FileEntry *CurFileEnt,<br>
-    SmallVectorImpl<char> *SearchPath,<br>
+    StringRef Filename, SourceLocation IncludeLoc, bool isAngled,<br>
+    const DirectoryLookup *FromDir, const DirectoryLookup *&CurDir,<br>
+    ArrayRef<const FileEntry *> Includers, SmallVectorImpl<char> *SearchPath,<br>
     SmallVectorImpl<char> *RelativePath,<br>
-    ModuleMap::KnownHeader *SuggestedModule,<br>
-    bool SkipCache)<br>
-{<br>
+    ModuleMap::KnownHeader *SuggestedModule, bool SkipCache) {<br>
   if (!HSOpts->ModuleMapFiles.empty()) {<br>
     // Preload all explicitly specified module map files. This enables modules<br>
     // map files lying in a directory structure separate from the header files<br>
@@ -546,44 +541,53 @@ const FileEntry *HeaderSearch::LookupFil<br>
   }<br>
<br>
   // Unless disabled, check to see if the file is in the #includer's<br>
-  // directory.  This has to be based on CurFileEnt, not CurDir, because<br>
-  // CurFileEnt could be a #include of a subdirectory (#include "foo/bar.h") and<br>
-  // a subsequent include of "baz.h" should resolve to "whatever/foo/baz.h".<br>
+  // directory.  This cannot be based on CurDir, because each includer could be<br>
+  // a #include of a subdirectory (#include "foo/bar.h") and a subsequent<br>
+  // include of "baz.h" should resolve to "whatever/foo/baz.h".<br>
   // This search is not done for <> headers.<br>
-  if (CurFileEnt && !isAngled && !NoCurDirSearch) {<br>
+  if (!Includers.empty() && !isAngled && !NoCurDirSearch) {<br>
     SmallString<1024> TmpDir;<br>
-    // Concatenate the requested file onto the directory.<br>
-    // FIXME: Portability.  Filename concatenation should be in sys::Path.<br>
-    TmpDir += CurFileEnt->getDir()->getName();<br>
-    TmpDir.push_back('/');<br>
-    TmpDir.append(Filename.begin(), Filename.end());<br>
-    if (const FileEntry *FE = FileMgr.getFile(TmpDir.str(),/*openFile=*/true)) {<br>
-      // Leave CurDir unset.<br>
-      // This file is a system header or C++ unfriendly if the old file is.<br>
-      //<br>
-      // Note that we only use one of FromHFI/ToHFI at once, due to potential<br>
-      // reallocation of the underlying vector potentially making the first<br>
-      // reference binding dangling.<br>
-      HeaderFileInfo &FromHFI = getFileInfo(CurFileEnt);<br>
-      unsigned DirInfo = FromHFI.DirInfo;<br>
-      bool IndexHeaderMapHeader = FromHFI.IndexHeaderMapHeader;<br>
-      StringRef Framework = FromHFI.Framework;<br>
-<br>
-      HeaderFileInfo &ToHFI = getFileInfo(FE);<br>
-      ToHFI.DirInfo = DirInfo;<br>
-      ToHFI.IndexHeaderMapHeader = IndexHeaderMapHeader;<br>
-      ToHFI.Framework = Framework;<br>
-<br>
-      if (SearchPath != NULL) {<br>
-        StringRef SearchPathRef(CurFileEnt->getDir()->getName());<br>
-        SearchPath->clear();<br>
-        SearchPath->append(SearchPathRef.begin(), SearchPathRef.end());<br>
-      }<br>
-      if (RelativePath != NULL) {<br>
-        RelativePath->clear();<br>
-        RelativePath->append(Filename.begin(), Filename.end());<br>
+    for (ArrayRef<const FileEntry *>::iterator I(Includers.begin()),<br>
+         E(Includers.end());<br>
+         I != E; ++I) {<br>
+      const FileEntry *Includer = *I;<br>
+      // Concatenate the requested file onto the directory.<br>
+      // FIXME: Portability.  Filename concatenation should be in sys::Path.<br>
+      TmpDir = Includer->getDir()->getName();<br>
+      TmpDir.push_back('/');<br>
+      TmpDir.append(Filename.begin(), Filename.end());<br>
+      if (const FileEntry *FE =<br>
+              FileMgr.getFile(TmpDir.str(), /*openFile=*/true)) {<br>
+        // Leave CurDir unset.<br>
+        // This file is a system header or C++ unfriendly if the old file is.<br>
+        //<br>
+        // Note that we only use one of FromHFI/ToHFI at once, due to potential<br>
+        // reallocation of the underlying vector potentially making the first<br>
+        // reference binding dangling.<br>
+        HeaderFileInfo &FromHFI = getFileInfo(Includer);<br>
+        unsigned DirInfo = FromHFI.DirInfo;<br>
+        bool IndexHeaderMapHeader = FromHFI.IndexHeaderMapHeader;<br>
+        StringRef Framework = FromHFI.Framework;<br>
+<br>
+        HeaderFileInfo &ToHFI = getFileInfo(FE);<br>
+        ToHFI.DirInfo = DirInfo;<br>
+        ToHFI.IndexHeaderMapHeader = IndexHeaderMapHeader;<br>
+        ToHFI.Framework = Framework;<br>
+<br>
+        if (SearchPath != NULL) {<br>
+          StringRef SearchPathRef(Includer->getDir()->getName());<br>
+          SearchPath->clear();<br>
+          SearchPath->append(SearchPathRef.begin(), SearchPathRef.end());<br>
+        }<br>
+        if (RelativePath != NULL) {<br>
+          RelativePath->clear();<br>
+          RelativePath->append(Filename.begin(), Filename.end());<br>
+        }<br>
+        if (I != Includers.begin())<br>
+          Diags.Report(IncludeLoc, diag::ext_pp_include_search_ms)<br>
+              << FE->getName();<br>
+        return FE;<br>
       }<br>
-      return FE;<br>
     }<br>
   }<br>
<br>
@@ -667,18 +671,18 @@ const FileEntry *HeaderSearch::LookupFil<br>
   // a header in a framework that is currently being built, and we couldn't<br>
   // resolve "foo.h" any other way, change the include to <Foo/foo.h>, where<br>
   // "Foo" is the name of the framework in which the including header was found.<br>
-  if (CurFileEnt && !isAngled && Filename.find('/') == StringRef::npos) {<br>
-    HeaderFileInfo &IncludingHFI = getFileInfo(CurFileEnt);<br>
+  if (!Includers.empty() && !isAngled &&<br>
+      Filename.find('/') == StringRef::npos) {<br>
+    HeaderFileInfo &IncludingHFI = getFileInfo(Includers.front());<br>
     if (IncludingHFI.IndexHeaderMapHeader) {<br>
       SmallString<128> ScratchFilename;<br>
       ScratchFilename += IncludingHFI.Framework;<br>
       ScratchFilename += '/';<br>
       ScratchFilename += Filename;<br>
-<br>
-      const FileEntry *Result = LookupFile(ScratchFilename, /*isAngled=*/true,<br>
-                                           FromDir, CurDir, CurFileEnt,<br>
-                                           SearchPath, RelativePath,<br>
-                                           SuggestedModule);<br>
+<br>
+      const FileEntry *Result = LookupFile(<br>
+          ScratchFilename, IncludeLoc, /*isAngled=*/true, FromDir, CurDir,<br>
+          Includers.front(), SearchPath, RelativePath, SuggestedModule);<br>
       std::pair<unsigned, unsigned> &CacheLookup<br>
         = LookupFileCache.GetOrCreateValue(Filename).getValue();<br>
       CacheLookup.second<br>
<br>
Modified: cfe/trunk/lib/Lex/PPDirectives.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/PPDirectives.cpp?rev=198082&r1=198081&r2=198082&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/PPDirectives.cpp?rev=198082&r1=198081&r2=198082&view=diff</a><br>

==============================================================================<br>
--- cfe/trunk/lib/Lex/PPDirectives.cpp (original)<br>
+++ cfe/trunk/lib/Lex/PPDirectives.cpp Fri Dec 27 13:46:16 2013<br>
@@ -560,12 +560,12 @@ const FileEntry *Preprocessor::LookupFil<br>
     SmallVectorImpl<char> *RelativePath,<br>
     ModuleMap::KnownHeader *SuggestedModule,<br>
     bool SkipCache) {<br>
-  // If the header lookup mechanism may be relative to the current file, pass in<br>
-  // info about where the current file is.<br>
-  const FileEntry *CurFileEnt = 0;<br>
+  // If the header lookup mechanism may be relative to the current inclusion<br>
+  // stack, record the parent #includes.<br>
+  SmallVector<const FileEntry *, 16> Includers;<br>
   if (!FromDir) {<br>
     FileID FID = getCurrentFileLexer()->getFileID();<br>
-    CurFileEnt = SourceMgr.getFileEntryForID(FID);<br>
+    const FileEntry *FileEnt = SourceMgr.getFileEntryForID(FID);<br>
<br>
     // If there is no file entry associated with this file, it must be the<br>
     // predefines buffer.  Any other file is not lexed with a normal lexer, so<br>
@@ -573,17 +573,31 @@ const FileEntry *Preprocessor::LookupFil<br>
     // predefines buffer, resolve #include references (which come from the<br>
     // -include command line argument) as if they came from the main file, this<br>
     // affects file lookup etc.<br>
-    if (CurFileEnt == 0) {<br>
-      FID = SourceMgr.getMainFileID();<br>
-      CurFileEnt = SourceMgr.getFileEntryForID(FID);<br>
+    if (!FileEnt)<br>
+      FileEnt = SourceMgr.getFileEntryForID(SourceMgr.getMainFileID());<br>
+<br>
+    if (FileEnt)<br>
+      Includers.push_back(FileEnt);<br>
+<br>
+    // MSVC searches the current include stack from top to bottom for<br>
+    // headers included by quoted include directives.<br>
+    // See: <a href="http://msdn.microsoft.com/en-us/library/36k2cdd4.aspx" target="_blank">http://msdn.microsoft.com/en-us/library/36k2cdd4.aspx</a><br>
+    if (LangOpts.MicrosoftMode && !isAngled) {<br>
+      for (unsigned i = 0, e = IncludeMacroStack.size(); i != e; ++i) {<br>
+        IncludeStackInfo &ISEntry = IncludeMacroStack[e - i - 1];<br>
+        if (IsFileLexer(ISEntry))<br>
+          if ((FileEnt = SourceMgr.getFileEntryForID(<br>
+                   ISEntry.ThePPLexer->getFileID())))<br>
+            Includers.push_back(FileEnt);<br>
+      }<br>
     }<br>
   }<br>
<br>
   // Do a standard file entry lookup.<br>
   CurDir = CurDirLookup;<br>
   const FileEntry *FE = HeaderInfo.LookupFile(<br>
-      Filename, isAngled, FromDir, CurDir, CurFileEnt,<br>
-      SearchPath, RelativePath, SuggestedModule, SkipCache);<br>
+      Filename, FilenameLoc, isAngled, FromDir, CurDir, Includers, SearchPath,<br>
+      RelativePath, SuggestedModule, SkipCache);<br>
   if (FE) {<br>
     if (SuggestedModule)<br>
       HeaderInfo.getModuleMap().diagnoseHeaderInclusion(<br>
@@ -591,6 +605,7 @@ const FileEntry *Preprocessor::LookupFil<br>
     return FE;<br>
   }<br>
<br>
+  const FileEntry *CurFileEnt;<br>
   // Otherwise, see if this is a subframework header.  If so, this is relative<br>
   // to one of the headers on the #include stack.  Walk the list of the current<br>
   // headers on the #include stack and pass them to HeaderInfo.<br>
<br>
Modified: cfe/trunk/lib/Rewrite/Frontend/InclusionRewriter.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Rewrite/Frontend/InclusionRewriter.cpp?rev=198082&r1=198081&r2=198082&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Rewrite/Frontend/InclusionRewriter.cpp?rev=198082&r1=198081&r2=198082&view=diff</a><br>

==============================================================================<br>
--- cfe/trunk/lib/Rewrite/Frontend/InclusionRewriter.cpp (original)<br>
+++ cfe/trunk/lib/Rewrite/Frontend/InclusionRewriter.cpp Fri Dec 27 13:46:16 2013<br>
@@ -335,7 +335,7 @@ bool InclusionRewriter::HandleHasInclude<br>
   bool isAngled = PP.GetIncludeFilenameSpelling(Tok.getLocation(), Filename);<br>
   const DirectoryLookup *CurDir;<br>
   const FileEntry *File = PP.getHeaderSearchInfo().LookupFile(<br>
-      Filename, isAngled, 0, CurDir,<br>
+      Filename, SourceLocation(), isAngled, 0, CurDir,<br>
       PP.getSourceManager().getFileEntryForID(FileId), 0, 0, 0, false);<br>
<br>
   FileExists = File != 0;<br>
<br>
Added: cfe/trunk/test/Preprocessor/microsoft-header-search.c<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/microsoft-header-search.c?rev=198082&view=auto" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/microsoft-header-search.c?rev=198082&view=auto</a><br>

==============================================================================<br>
--- cfe/trunk/test/Preprocessor/microsoft-header-search.c (added)<br>
+++ cfe/trunk/test/Preprocessor/microsoft-header-search.c Fri Dec 27 13:46:16 2013<br>
@@ -0,0 +1,6 @@<br>
+// RUN: %clang_cc1 -I%S/microsoft-header-search %s -fms-compatibility -verify<br>
+<br>
+// expected-warning@microsoft-header-search/a/findme.h:3 {{findme.h successfully included using MS search rules}}<br>
+// expected-warning@microsoft-header-search/a/b/include3.h:3 {{#include resolved using non-portable MSVC search rules as}}<br>
+<br>
+#include "microsoft-header-search/include1.h"<br>
\ No newline at end of file<br>
<br>
Added: cfe/trunk/test/Preprocessor/microsoft-header-search/a/b/include3.h<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/microsoft-header-search/a/b/include3.h?rev=198082&view=auto" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/microsoft-header-search/a/b/include3.h?rev=198082&view=auto</a><br>

==============================================================================<br>
--- cfe/trunk/test/Preprocessor/microsoft-header-search/a/b/include3.h (added)<br>
+++ cfe/trunk/test/Preprocessor/microsoft-header-search/a/b/include3.h Fri Dec 27 13:46:16 2013<br>
@@ -0,0 +1,3 @@<br>
+#pragma once<br>
+<br>
+#include "findme.h"<br>
\ No newline at end of file<br>
<br>
Added: cfe/trunk/test/Preprocessor/microsoft-header-search/a/findme.h<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/microsoft-header-search/a/findme.h?rev=198082&view=auto" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/microsoft-header-search/a/findme.h?rev=198082&view=auto</a><br>

==============================================================================<br>
--- cfe/trunk/test/Preprocessor/microsoft-header-search/a/findme.h (added)<br>
+++ cfe/trunk/test/Preprocessor/microsoft-header-search/a/findme.h Fri Dec 27 13:46:16 2013<br>
@@ -0,0 +1,3 @@<br>
+#pragma once<br>
+<br>
+#warning findme.h successfully included using MS search rules<br>
\ No newline at end of file<br>
<br>
Added: cfe/trunk/test/Preprocessor/microsoft-header-search/a/include2.h<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/microsoft-header-search/a/include2.h?rev=198082&view=auto" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/microsoft-header-search/a/include2.h?rev=198082&view=auto</a><br>

==============================================================================<br>
--- cfe/trunk/test/Preprocessor/microsoft-header-search/a/include2.h (added)<br>
+++ cfe/trunk/test/Preprocessor/microsoft-header-search/a/include2.h Fri Dec 27 13:46:16 2013<br>
@@ -0,0 +1,6 @@<br>
+#pragma once<br>
+<br>
+#include "b/include3.h"<br>
+#pragma once<br>
+<br>
+#include "b/include3.h"<br>
\ No newline at end of file<br>
<br>
Added: cfe/trunk/test/Preprocessor/microsoft-header-search/findme.h<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/microsoft-header-search/findme.h?rev=198082&view=auto" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/microsoft-header-search/findme.h?rev=198082&view=auto</a><br>

==============================================================================<br>
--- cfe/trunk/test/Preprocessor/microsoft-header-search/findme.h (added)<br>
+++ cfe/trunk/test/Preprocessor/microsoft-header-search/findme.h Fri Dec 27 13:46:16 2013<br>
@@ -0,0 +1,3 @@<br>
+#pragma once<br>
+<br>
+#error Wrong findme.h included, MSVC header search incorrect<br>
\ No newline at end of file<br>
<br>
Added: cfe/trunk/test/Preprocessor/microsoft-header-search/include1.h<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/microsoft-header-search/include1.h?rev=198082&view=auto" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/microsoft-header-search/include1.h?rev=198082&view=auto</a><br>

==============================================================================<br>
--- cfe/trunk/test/Preprocessor/microsoft-header-search/include1.h (added)<br>
+++ cfe/trunk/test/Preprocessor/microsoft-header-search/include1.h Fri Dec 27 13:46:16 2013<br>
@@ -0,0 +1,6 @@<br>
+#pragma once<br>
+<br>
+#include "a/include2.h"<br>
+#pragma once<br>
+<br>
+#include "a/include2.h"<br>
\ No newline at end of file<br>
<br>
<br>
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</blockquote></div><br></div>