Set UserLabelPrefix and MCountName correctly for DragonFly BSD.  Patch by Sascha Wildner.

Setting UserLabelPrefix correctly fixes PR11949.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150280 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 8539727..cc8cd9c 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -222,7 +222,18 @@
   }
 public:
   DragonFlyBSDTargetInfo(const std::string &triple)
-    : OSTargetInfo<Target>(triple) {}
+    : OSTargetInfo<Target>(triple) {
+      this->UserLabelPrefix = "";
+
+      llvm::Triple Triple(triple);
+      switch (Triple.getArch()) {
+        default:
+        case llvm::Triple::x86:
+        case llvm::Triple::x86_64:
+          this->MCountName = ".mcount";
+          break;
+      }
+  }
 };
 
 // FreeBSD Target