Add the align_to_end option to .bundle_lock in the MC implementation of aligned

bundling. The document describing this feature and the implementation has also
been updated:

https://sites.google.com/a/chromium.org/dev/nativeclient/pnacl/aligned-bundling-support-in-llvm


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171797 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index 9b7074d3b2..e234dfed16 100644
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -260,7 +260,7 @@ public:
   virtual void EmitInstruction(const MCInst &Inst);
 
   virtual void EmitBundleAlignMode(unsigned AlignPow2);
-  virtual void EmitBundleLock();
+  virtual void EmitBundleLock(bool AlignToEnd);
   virtual void EmitBundleUnlock();
 
   /// EmitRawText - If this file is backed by an assembly streamer, this dumps
@@ -1370,8 +1370,10 @@ void MCAsmStreamer::EmitBundleAlignMode(unsigned AlignPow2) {
   EmitEOL();
 }
 
-void MCAsmStreamer::EmitBundleLock() {
+void MCAsmStreamer::EmitBundleLock(bool AlignToEnd) {
   OS << "\t.bundle_lock";
+  if (AlignToEnd)
+    OS << " align_to_end";
   EmitEOL();
 }