commit ec0df5f4b74dd3fb37fdb574defc36f5397594b9
author Eli Friedman <eli.friedman@gmail.com> Tue Jun 02 07:55:39 2009 +0000
committer Eli Friedman <eli.friedman@gmail.com> Tue Jun 02 07:55:39 2009 +0000
tree 3b8acdff32cec6b25530ea5f785709c22225143b
parent 430d9f10d954eb0df739a38ff0659fccb2bd7ca9

PR4288: Make -dD (dump macros with preprocessed source) play nicely with 
# line directives.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72724 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Frontend/PrintPreprocessedOutput.cpp

diff --git a/lib/Frontend/PrintPreprocessedOutput.cpp b/lib/Frontend/PrintPreprocessedOutput.cpp
index e79453c..89d099c 100644
--- a/lib/Frontend/PrintPreprocessedOutput.cpp
+++ b/lib/Frontend/PrintPreprocessedOutput.cpp
@@ -87,6 +87,7 @@
 private:
   unsigned CurLine;
   bool EmittedTokensOnThisLine;
+  bool EmittedMacroOnThisLine;
   SrcMgr::CharacteristicKind FileType;
   llvm::SmallString<512> CurFilename;
   bool Initialized;
@@ -100,6 +101,7 @@
     CurLine = 0;
     CurFilename += "<uninit>";
     EmittedTokensOnThisLine = false;
+    EmittedMacroOnThisLine = false;
     FileType = SrcMgr::C_User;
     Initialized = false;
   }
@@ -130,9 +132,10 @@
 void PrintPPOutputPPCallbacks::WriteLineInfo(unsigned LineNo,
                                              const char *Extra,
                                              unsigned ExtraLen) {
-  if (EmittedTokensOnThisLine) {
+  if (EmittedTokensOnThisLine || EmittedMacroOnThisLine) {
     OS << '\n';
     EmittedTokensOnThisLine = false;
+    EmittedMacroOnThisLine = false;
   }
 
   OS << '#' << ' ' << LineNo << ' ' << '"';
@@ -161,11 +164,12 @@
     
     CurLine = LineNo;
     
-    if (!EmittedTokensOnThisLine)
+    if (!EmittedTokensOnThisLine && !EmittedMacroOnThisLine)
       return true;
     
     OS << '\n';
     EmittedTokensOnThisLine = false;
+    EmittedMacroOnThisLine = false;
     return true;
   }
 
@@ -260,6 +264,7 @@
   
   MoveToLine(MI->getDefinitionLoc());
   PrintMacroDefinition(*II, *MI, PP, OS);
+  EmittedMacroOnThisLine = true;
 }