Sink most of DwarfDebug::constructAbstractSubprogramScopeDIE down into DwarfCompileUnit.

llvm-svn: 219476

4 files changed, 40 insertions, 29 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index ec5c2ba399e..617df1b762f 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -621,4 +621,33 @@ DIE *DwarfCompileUnit::createAndAddScopeChildren(LexicalScope *Scope,
   return ObjectPointer;
 }
 
+DIE &
+DwarfCompileUnit::constructAbstractSubprogramScopeDIE(LexicalScope *Scope) {
+  DISubprogram SP(Scope->getScopeNode());
+
+  DIE *ContextDIE;
+
+  // Some of this is duplicated from DwarfUnit::getOrCreateSubprogramDIE, with
+  // the important distinction that the DIDescriptor is not associated with the
+  // DIE (since the DIDescriptor will be associated with the concrete DIE, if
+  // any). It could be refactored to some common utility function.
+  if (DISubprogram SPDecl = SP.getFunctionDeclaration()) {
+    ContextDIE = &getUnitDie();
+    getOrCreateSubprogramDIE(SPDecl);
+  } else
+    ContextDIE = getOrCreateContextDIE(resolve(SP.getContext()));
+
+  // Passing null as the associated DIDescriptor because the abstract definition
+  // shouldn't be found by lookup.
+  DIE &AbsDef =
+      createAndAddDIE(dwarf::DW_TAG_subprogram, *ContextDIE, DIDescriptor());
+  applySubprogramAttributesToDefinition(SP, AbsDef);
+
+  if (getCUNode().getEmissionKind() != DIBuilder::LineTablesOnly)
+    addUInt(AbsDef, dwarf::DW_AT_inline, None, dwarf::DW_INL_inlined);
+  if (DIE *ObjectPointer = createAndAddScopeChildren(Scope, AbsDef))
+    addDIEEntry(AbsDef, dwarf::DW_AT_object_pointer, *ObjectPointer);
+  return AbsDef;
+}
+
 } // end llvm namespace
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
index 9b97a51d371..caa6efc121d 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
@@ -120,6 +120,8 @@ public:
   void constructSubprogramScopeDIE(LexicalScope *Scope);
 
   DIE *createAndAddScopeChildren(LexicalScope *Scope, DIE &ScopeDIE);
+
+  DIE &constructAbstractSubprogramScopeDIE(LexicalScope *Scope);
 };
 
 } // end llvm namespace
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index b461674ad63..a02118566bc 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -335,7 +335,7 @@ void DwarfDebug::constructAbstractSubprogramScopeDIE(LexicalScope *Scope) {
   assert(Scope->isAbstractScope());
   assert(!Scope->getInlinedAt());
 
-  DISubprogram SP(Scope->getScopeNode());
+  const MDNode *SP = Scope->getScopeNode();
 
   DIE *&AbsDef = AbstractSPDies[SP];
   if (AbsDef)
@@ -346,28 +346,8 @@ void DwarfDebug::constructAbstractSubprogramScopeDIE(LexicalScope *Scope) {
   // Find the subprogram's DwarfCompileUnit in the SPMap in case the subprogram
   // was inlined from another compile unit.
   DwarfCompileUnit &SPCU = *SPMap[SP];
-  DIE *ContextDIE;
-
-  // Some of this is duplicated from DwarfUnit::getOrCreateSubprogramDIE, with
-  // the important distinction that the DIDescriptor is not associated with the
-  // DIE (since the DIDescriptor will be associated with the concrete DIE, if
-  // any). It could be refactored to some common utility function.
-  if (DISubprogram SPDecl = SP.getFunctionDeclaration()) {
-    ContextDIE = &SPCU.getUnitDie();
-    SPCU.getOrCreateSubprogramDIE(SPDecl);
-  } else
-    ContextDIE = SPCU.getOrCreateContextDIE(resolve(SP.getContext()));
-
-  // Passing null as the associated DIDescriptor because the abstract definition
-  // shouldn't be found by lookup.
-  AbsDef = &SPCU.createAndAddDIE(dwarf::DW_TAG_subprogram, *ContextDIE,
-                                 DIDescriptor());
-  SPCU.applySubprogramAttributesToDefinition(SP, *AbsDef);
-
-  if (SPCU.getCUNode().getEmissionKind() != DIBuilder::LineTablesOnly)
-    SPCU.addUInt(*AbsDef, dwarf::DW_AT_inline, None, dwarf::DW_INL_inlined);
-  if (DIE *ObjectPointer = SPCU.createAndAddScopeChildren(Scope, *AbsDef))
-    SPCU.addDIEEntry(*AbsDef, dwarf::DW_AT_object_pointer, *ObjectPointer);
+
+  AbsDef = &SPCU.constructAbstractSubprogramScopeDIE(Scope);
 }
 
 void DwarfDebug::addGnuPubAttributes(DwarfUnit &U, DIE &D) const {
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
index b8029c37246..8c5e1528e5c 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
@@ -444,6 +444,12 @@ protected:
   /// none currently exists, create a new ID and insert it in the line table.
   virtual unsigned getOrCreateSourceID(StringRef File, StringRef Directory) = 0;
 
+  /// resolve - Look in the DwarfDebug map for the MDNode that
+  /// corresponds to the reference.
+  template <typename T> T resolve(DIRef<T> Ref) const {
+    return DD->resolve(Ref);
+  }
+
 private:
   /// constructTypeDIE - Construct basic type die from DIBasicType.
   void constructTypeDIE(DIE &Buffer, DIBasicType BTy);
@@ -499,12 +505,6 @@ private:
   /// information entry.
   DIEEntry *createDIEEntry(DIE &Entry);
 
-  /// resolve - Look in the DwarfDebug map for the MDNode that
-  /// corresponds to the reference.
-  template <typename T> T resolve(DIRef<T> Ref) const {
-    return DD->resolve(Ref);
-  }
-
   /// If this is a named finished type then include it in the list of types for
   /// the accelerator tables.
   void updateAcceleratorTables(DIScope Context, DIType Ty, const DIE &TyDIE);