Refactor filename/directory in DICompileUnit into a DIFile

This is the next step towards making the metadata for DIScopes have a common
prefix rather than having to delegate based on their tag type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176913 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 26 insertions, 22 deletions

diff --git a/include/llvm/DebugInfo.h b/include/llvm/DebugInfo.h
index 3737c54..e91df10 100644
--- a/include/llvm/DebugInfo.h
+++ b/include/llvm/DebugInfo.h
@@ -169,6 +169,20 @@ namespace llvm {
     StringRef getDirectory() const;
   };
 
+  /// DIFile - This is a wrapper for a file.
+  class DIFile : public DIScope {
+    friend class DIDescriptor;
+    void printInternal(raw_ostream &OS) const {} // FIXME: Output something?
+  public:
+    explicit DIFile(const MDNode *N = 0) : DIScope(N) {
+      if (DbgNode && !isFile())
+        DbgNode = 0;
+    }
+    StringRef getFilename() const  { return getStringField(1);   }
+    StringRef getDirectory() const { return getStringField(2);   }
+    bool Verify() const;
+  };
+
   /// DICompileUnit - A wrapper for a compile unit.
   class DICompileUnit : public DIScope {
     friend class DIDescriptor;
@@ -176,40 +190,30 @@ namespace llvm {
   public:
     explicit DICompileUnit(const MDNode *N = 0) : DIScope(N) {}
 
-    unsigned getLanguage() const   { return getUnsignedField(2); }
-    StringRef getFilename() const  { return getStringField(3);   }
-    StringRef getDirectory() const { return getStringField(4);   }
-    StringRef getProducer() const  { return getStringField(5);   }
+    unsigned getLanguage() const { return getUnsignedField(2); }
+    StringRef getFilename() const {
+      return getFieldAs<DIFile>(3).getFilename();
+    }
+    StringRef getDirectory() const {
+      return getFieldAs<DIFile>(3).getDirectory();
+    }
+    StringRef getProducer() const { return getStringField(4); }
 
-    bool isOptimized() const           { return getUnsignedField(6) != 0; }
-    StringRef getFlags() const       { return getStringField(7);   }
-    unsigned getRunTimeVersion() const { return getUnsignedField(8); }
+    bool isOptimized() const { return getUnsignedField(5) != 0; }
+    StringRef getFlags() const { return getStringField(6); }
+    unsigned getRunTimeVersion() const { return getUnsignedField(7); }
 
     DIArray getEnumTypes() const;
     DIArray getRetainedTypes() const;
     DIArray getSubprograms() const;
     DIArray getGlobalVariables() const;
 
-    StringRef getSplitDebugFilename() const { return getStringField(13); }
+    StringRef getSplitDebugFilename() const { return getStringField(12); }
 
     /// Verify - Verify that a compile unit is well formed.
     bool Verify() const;
   };
 
-  /// DIFile - This is a wrapper for a file.
-  class DIFile : public DIScope {
-    friend class DIDescriptor;
-    void printInternal(raw_ostream &OS) const {} // FIXME: Output something?
-  public:
-    explicit DIFile(const MDNode *N = 0) : DIScope(N) {
-      if (DbgNode && !isFile())
-        DbgNode = 0;
-    }
-    StringRef getFilename() const  { return getStringField(1);   }
-    StringRef getDirectory() const { return getStringField(2);   }
-    bool Verify() const;
-  };
-
   /// DIEnumerator - A wrapper for an enumerator (e.g. X and Y in 'enum {X,Y}').
   /// FIXME: it seems strange that this doesn't have either a reference to the
   /// type/precision or a file/line pair for location info.