ARM: add support for WatchOS's compact unwind information.

llvm-svn: 251573

1 files changed, 2 insertions, 1 deletions

diff --git a/llvm/lib/MC/MCDwarf.cpp b/llvm/lib/MC/MCDwarf.cpp
index e964032b9d2..8be1f4cbda2 100644
--- a/llvm/lib/MC/MCDwarf.cpp
+++ b/llvm/lib/MC/MCDwarf.cpp
@@ -1536,6 +1536,7 @@ void MCDwarfFrameEmitter::Emit(MCObjectStreamer &Streamer, MCAsmBackend *MAB,
 
   const MCSymbol *DummyDebugKey = nullptr;
   NeedsEHFrameSection = !MOFI->getSupportsCompactUnwindWithoutEHFrame();
+  bool CanOmitDwarf = MOFI->getOmitDwarfIfHaveCompactUnwind();
   for (unsigned i = 0, n = FrameArray.size(); i < n; ++i) {
     const MCDwarfFrameInfo &Frame = FrameArray[i];
 
@@ -1545,7 +1546,7 @@ void MCDwarfFrameEmitter::Emit(MCObjectStreamer &Streamer, MCAsmBackend *MAB,
       FDEEnd = nullptr;
     }
 
-    if (!NeedsEHFrameSection && Frame.CompactUnwindEncoding !=
+    if (CanOmitDwarf && Frame.CompactUnwindEncoding !=
           MOFI->getCompactUnwindDwarfEHFrameOnly())
       // Don't generate an EH frame if we don't need one. I.e., it's taken care
       // of by the compact unwind encoding.