Add new -d option to tblgen. It writes a make(1)-style dependency file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132395 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/TGLexer.cpp b/utils/TableGen/TGLexer.cpp
index 82d2b64..572c36d 100644
--- a/utils/TableGen/TGLexer.cpp
+++ b/utils/TableGen/TGLexer.cpp
@@ -267,14 +267,17 @@
 
   // Get the string.
   std::string Filename = CurStrVal;
+  std::string IncludedFile;
 
   
-  CurBuffer = SrcMgr.AddIncludeFile(Filename, SMLoc::getFromPointer(CurPtr));
+  CurBuffer = SrcMgr.AddIncludeFile(Filename, SMLoc::getFromPointer(CurPtr),
+                                    IncludedFile);
   if (CurBuffer == -1) {
     PrintError(getLoc(), "Could not find include file '" + Filename + "'");
     return true;
   }
   
+  Dependencies.push_back(IncludedFile);
   // Save the line number and lex buffer of the includer.
   CurBuf = SrcMgr.getMemoryBuffer(CurBuffer);
   CurPtr = CurBuf->getBufferStart();