Add a flag that indicates whether a target supports compact unwind info or not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133662 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index 3f346a3..df42b2c 100644
--- a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -487,8 +487,12 @@
 
   // .comm doesn't support alignment before Leopard.
   Triple T(((LLVMTargetMachine&)TM).getTargetTriple());
-  if (T.isMacOSX() && T.isMacOSXVersionLT(10, 5))
-    CommDirectiveSupportsAlignment = false;
+  if (T.isMacOSX()) {
+    if (T.isMacOSXVersionLT(10, 5))
+      CommDirectiveSupportsAlignment = false;
+    if (!T.isMacOSXVersionLT(10, 6))
+      SupportsCompactUnwindInfo = true;
+  }
 
   TargetLoweringObjectFile::Initialize(Ctx, TM);