Remove the DW_AT_MIPS_linkage name attribute when we don't need it
output (we're emitting a specification already and the information
isn't changing) and we're not in old gdb compat mode.
Saves 1% on the debug information for a build of llvm.
Fixes rdar://11043421
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162493 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index d30e5bb..7a3eb32 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -1028,8 +1028,10 @@
// 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())
+ if (!LinkageName.empty() && DD->useDarwinGDBCompat())
addString(SPDie, dwarf::DW_AT_MIPS_linkage_name,
getRealLinkageName(LinkageName));
@@ -1043,6 +1045,11 @@
return SPDie;
}
+ // Add the linkage name if we have one.
+ if (!LinkageName.empty() && !DD->useDarwinGDBCompat())
+ addString(SPDie, dwarf::DW_AT_MIPS_linkage_name,
+ getRealLinkageName(LinkageName));
+
// Constructors and operators for anonymous aggregates do not have names.
if (!SP.getName().empty())
addString(SPDie, dwarf::DW_AT_name, SP.getName());