1 files changed, 26 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index c38457ff59e..66473466a83 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -1499,6 +1499,9 @@ bool AsmPrinter::doFinalization(Module &M) {
   // Emit llvm.ident metadata in an '.ident' directive.
   EmitModuleIdents(M);
 
+  // Emit bytes for llvm.commandline metadata.
+  EmitModuleCommandLines(M);
+
   // Emit __morestack address if needed for indirect calls.
   if (MMI->usesMorestackAddr()) {
     unsigned Align = 1;
@@ -2008,6 +2011,29 @@ void AsmPrinter::EmitModuleIdents(Module &M) {
   }
 }
 
+void AsmPrinter::EmitModuleCommandLines(Module &M) {
+  MCSection *CommandLine = getObjFileLowering().getSectionForCommandLines();
+  if (!CommandLine)
+    return;
+
+  const NamedMDNode *NMD = M.getNamedMetadata("llvm.commandline");
+  if (!NMD || !NMD->getNumOperands())
+    return;
+
+  OutStreamer->PushSection();
+  OutStreamer->SwitchSection(CommandLine);
+  OutStreamer->EmitZeros(1);
+  for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
+    const MDNode *N = NMD->getOperand(i);
+    assert(N->getNumOperands() == 1 &&
+           "llvm.commandline metadata entry can have only one operand");
+    const MDString *S = cast<MDString>(N->getOperand(0));
+    OutStreamer->EmitBytes(S->getString());
+    OutStreamer->EmitZeros(1);
+  }
+  OutStreamer->PopSection();
+}
+
 //===--------------------------------------------------------------------===//
 // Emission and print routines
 //