Revert "Make sure debug info contains linkage names (DW_AT_MIPS_linkage_name)"

temporarily while investigating gdb.cp/templates.exp.

This reverts commit r181471.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181496 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 11 insertions, 15 deletions

diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index b56255cb9b..c38ada6b66 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -1150,24 +1150,20 @@ DIE *CompileUnit::getOrCreateSubprogramDIE(DISubprogram SP) {
   // Add function template parameters.
   addTemplateParams(*SPDie, SP.getTemplateParams());
 
+  // Unfortunately this code needs to stay here instead of below the
+  // AT_specification code in order to work around a bug in older
+  // gdbs that requires the linkage name to resolve multiple template
+  // functions.
+  // TODO: Remove this set of code when we get rid of the old gdb
+  // compatibility.
   StringRef LinkageName = SP.getLinkageName();
+  if (!LinkageName.empty() && DD->useDarwinGDBCompat())
+    addString(SPDie, dwarf::DW_AT_MIPS_linkage_name,
+              getRealLinkageName(LinkageName));
 
   // If this DIE is going to refer declaration info using AT_specification
-  // then there is no need to add other attributes, except
-  // DW_AT_MIPS_linkage_name in two cases:
-  // 1) The current DIE has a linkage name but the referred-to declaration
-  // doesn't have one (e.g. constructor/destructor).
-  // 2) To work around a bug in older gdbs that requires the linkage name to
-  // resolve multiple template functions. TODO: Remove this case (the
-  // DD->useDarwinGDBCompat() condition) when we get rid of the old gdb
-  // compatibility.
-
+  // then there is no need to add other attributes.
   if (DeclDie) {
-    if (!LinkageName.empty()
-        && (SPDecl.getLinkageName().empty() || DD->useDarwinGDBCompat()))
-      addString(SPDie, dwarf::DW_AT_MIPS_linkage_name,
-                getRealLinkageName(LinkageName));
-
     // Refer function declaration directly.
     addDIEEntry(SPDie, dwarf::DW_AT_specification, dwarf::DW_FORM_ref4,
                 DeclDie);
@@ -1176,7 +1172,7 @@ DIE *CompileUnit::getOrCreateSubprogramDIE(DISubprogram SP) {
   }
 
   // Add the linkage name if we have one.
-  if (!LinkageName.empty())
+  if (!LinkageName.empty() && !DD->useDarwinGDBCompat())
     addString(SPDie, dwarf::DW_AT_MIPS_linkage_name,
               getRealLinkageName(LinkageName));