Formatting/whitespace.

[oota-llvm.git] / lib / CodeGen / AsmPrinter / DwarfDebug.cpp

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index a9bd0b4fee530842bb5453de6c6ade0f2e62a9c1..daa06c2c64e232c68756e72b8dfd3821ee0dad13 100644 (file)
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -558,10 +558,10 @@ DIE *DwarfDebug::constructInlinedScopeDIE(CompileUnit *TheCU,
 
   // Add the call site information to the DIE.
   DILocation DL(Scope->getInlinedAt());
-  TheCU->addUInt(ScopeDIE, dwarf::DW_AT_call_file, 0,
+  TheCU->addUInt(ScopeDIE, dwarf::DW_AT_call_file, None,
                  getOrCreateSourceID(DL.getFilename(), DL.getDirectory(),
                                      TheCU->getUniqueID()));
-  TheCU->addUInt(ScopeDIE, dwarf::DW_AT_call_line, 0, DL.getLineNumber());
+  TheCU->addUInt(ScopeDIE, dwarf::DW_AT_call_line, None, DL.getLineNumber());
 
   // Add name to the name table, we do this here because we're guaranteed
   // to have concrete versions of our DW_TAG_inlined_subprogram nodes.
@@ -826,8 +826,11 @@ CompileUnit *DwarfDebug::constructCompileUnit(const MDNode *N) {
 }
 
 // Construct subprogram DIE.
-void DwarfDebug::constructSubprogramDIE(CompileUnit *TheCU,
-                                        const MDNode *N) {
+void DwarfDebug::constructSubprogramDIE(CompileUnit *TheCU, const MDNode *N) {
+  // FIXME: We should only call this routine once, however, during LTO if a
+  // program is defined in multiple CUs we could end up calling it out of
+  // beginModule as we walk the CUs.
+
   CompileUnit *&CURef = SPMap[N];
   if (CURef)
     return;
@@ -842,7 +845,7 @@ void DwarfDebug::constructSubprogramDIE(CompileUnit *TheCU,
   DIE *SubprogramDie = TheCU->getOrCreateSubprogramDIE(SP);
 
   // Expose as a global name.
-  TheCU->addGlobalName(SP.getName(), SubprogramDie);
+  TheCU->addGlobalName(SP.getName(), SubprogramDie, resolve(SP.getContext()));
 }
 
 void DwarfDebug::constructImportedEntityDIE(CompileUnit *TheCU,
@@ -883,8 +886,8 @@ void DwarfDebug::constructImportedEntityDIE(CompileUnit *TheCU,
   unsigned FileID = getOrCreateSourceID(Module.getContext().getFilename(),
                                         Module.getContext().getDirectory(),
                                         TheCU->getUniqueID());
-  TheCU->addUInt(IMDie, dwarf::DW_AT_decl_file, 0, FileID);
-  TheCU->addUInt(IMDie, dwarf::DW_AT_decl_line, 0, Module.getLineNumber());
+  TheCU->addUInt(IMDie, dwarf::DW_AT_decl_file, None, FileID);
+  TheCU->addUInt(IMDie, dwarf::DW_AT_decl_line, None, Module.getLineNumber());
   TheCU->addDIEEntry(IMDie, dwarf::DW_AT_import, EntityDie);
   StringRef Name = Module.getName();
   if (!Name.empty())
@@ -952,14 +955,14 @@ void DwarfDebug::computeInlinedDIEs() {
   for (SmallPtrSet<DIE *, 4>::iterator AI = InlinedSubprogramDIEs.begin(),
          AE = InlinedSubprogramDIEs.end(); AI != AE; ++AI) {
     DIE *ISP = *AI;
-    FirstCU->addUInt(ISP, dwarf::DW_AT_inline, 0, dwarf::DW_INL_inlined);
+    FirstCU->addUInt(ISP, dwarf::DW_AT_inline, None, dwarf::DW_INL_inlined);
   }
   for (DenseMap<const MDNode *, DIE *>::iterator AI = AbstractSPDies.begin(),
          AE = AbstractSPDies.end(); AI != AE; ++AI) {
     DIE *ISP = AI->second;
     if (InlinedSubprogramDIEs.count(ISP))
       continue;
-    FirstCU->addUInt(ISP, dwarf::DW_AT_inline, 0, dwarf::DW_INL_inlined);
+    FirstCU->addUInt(ISP, dwarf::DW_AT_inline, None, dwarf::DW_INL_inlined);
   }
 }
 
@@ -974,28 +977,35 @@ void DwarfDebug::collectDeadVariables() {
       DIArray Subprograms = TheCU.getSubprograms();
       for (unsigned i = 0, e = Subprograms.getNumElements(); i != e; ++i) {
         DISubprogram SP(Subprograms.getElement(i));
-        if (ProcessedSPNodes.count(SP) != 0) continue;
-        if (!SP.isSubprogram()) continue;
-        if (!SP.isDefinition()) continue;
+        if (ProcessedSPNodes.count(SP) != 0)
+          continue;
+        if (!SP.isSubprogram())
+          continue;
+        if (!SP.isDefinition())
+          continue;
         DIArray Variables = SP.getVariables();
-        if (Variables.getNumElements() == 0) continue;
+        if (Variables.getNumElements() == 0)
+          continue;
 
         LexicalScope *Scope =
-          new LexicalScope(NULL, DIDescriptor(SP), NULL, false);
+            new LexicalScope(NULL, DIDescriptor(SP), NULL, false);
         DeadFnScopeMap[SP] = Scope;
 
         // Construct subprogram DIE and add variables DIEs.
         CompileUnit *SPCU = CUMap.lookup(TheCU);
         assert(SPCU && "Unable to find Compile Unit!");
+        // FIXME: See the comment in constructSubprogramDIE about duplicate
+        // subprogram DIEs.
         constructSubprogramDIE(SPCU, SP);
-        DIE *ScopeDIE = SPCU->getDIE(SP);
+        DIE *SPDIE = SPCU->getDIE(SP);
         for (unsigned vi = 0, ve = Variables.getNumElements(); vi != ve; ++vi) {
           DIVariable DV(Variables.getElement(vi));
-          if (!DV.isVariable()) continue;
+          if (!DV.isVariable())
+            continue;
           DbgVariable NewVar(DV, NULL, this);
           if (DIE *VariableDIE =
-              SPCU->constructVariableDIE(&NewVar, Scope->isAbstractScope()))
-            ScopeDIE->addChild(VariableDIE);
+                  SPCU->constructVariableDIE(&NewVar, Scope->isAbstractScope()))
+            SPDIE->addChild(VariableDIE);
         }
       }
     }
@@ -2037,8 +2047,8 @@ void DwarfDebug::emitDIE(DIE *Die, std::vector<DIEAbbrev *> *Abbrevs) {
 
   // Emit the DIE attribute values.
   for (unsigned i = 0, N = Values.size(); i < N; ++i) {
-    unsigned Attr = AbbrevData[i].getAttribute();
-    unsigned Form = AbbrevData[i].getForm();
+    dwarf::Attribute Attr = AbbrevData[i].getAttribute();
+    dwarf::Form Form = AbbrevData[i].getForm();
     assert(Form && "Too many attributes for DIE (check abbreviation)");
 
     if (Asm->isVerbose())
@@ -2354,9 +2364,17 @@ void DwarfDebug::emitAccelTypes() {
 /// computeIndexValue - Compute the gdb index value for the DIE and CU.
 static dwarf::PubIndexEntryDescriptor computeIndexValue(CompileUnit *CU,
                                                         DIE *Die) {
-  dwarf::GDBIndexEntryLinkage Linkage =
-      Die->findAttribute(dwarf::DW_AT_external) ? dwarf::GIEL_EXTERNAL
-                                                : dwarf::GIEL_STATIC;
+  dwarf::GDBIndexEntryLinkage Linkage = dwarf::GIEL_STATIC;
+
+  // We could have a specification DIE that has our most of our knowledge,
+  // look for that now.
+  DIEValue *SpecVal = Die->findAttribute(dwarf::DW_AT_specification);
+  if (SpecVal) {
+    DIE *SpecDIE = cast<DIEEntry>(SpecVal)->getEntry();
+    if (SpecDIE->findAttribute(dwarf::DW_AT_external))
+      Linkage = dwarf::GIEL_EXTERNAL;
+  } else if (Die->findAttribute(dwarf::DW_AT_external))
+    Linkage = dwarf::GIEL_EXTERNAL;
 
   switch (Die->getTag()) {
   case dwarf::DW_TAG_class_type: