If the DIUnit has flags passed on it then have DW_AT_producer be a combination of DICompileUnit::Producer and Flags.

The darwin behavior is unchanged and will continue to use DW_AT_APPLE_flags.

Patch by Zhizhou Yang

llvm-svn: 299038

1 files changed, 8 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 344528d5cfb..5ce11130920 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -423,7 +423,14 @@ DwarfDebug::constructDwarfCompileUnit(const DICompileUnit *DIUnit) {
     Asm->OutStreamer->getContext().setMCLineTableCompilationDir(
         NewCU.getUniqueID(), CompilationDir);
 
-  NewCU.addString(Die, dwarf::DW_AT_producer, DIUnit->getProducer());
+  StringRef Producer = DIUnit->getProducer();
+  StringRef Flags = DIUnit->getFlags();
+  if (!Flags.empty()) {
+    std::string ProducerWithFlags = Producer.str() + " " + Flags.str();
+    NewCU.addString(Die, dwarf::DW_AT_producer, ProducerWithFlags);
+  } else
+    NewCU.addString(Die, dwarf::DW_AT_producer, Producer);
+
   NewCU.addUInt(Die, dwarf::DW_AT_language, dwarf::DW_FORM_data2,
                 DIUnit->getSourceLanguage());
   NewCU.addString(Die, dwarf::DW_AT_name, FN);