Driver/Darwin: Change to use generic iOS runtime library, which we now always need.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129734 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index 1b39398..28b2f2e 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -353,10 +353,8 @@
   if (isTargetIPhoneOS()) {
     CmdArgs.push_back("-lgcc_s.1");
 
-    // We may need some static functions for armv6/thumb which are required to
-    // be in the same linkage unit as their caller.
-    if (getDarwinArchName(Args) == "armv6")
-      DarwinStaticLib = "libclang_rt.armv6.a";
+    // We currently always need a static runtime library for iOS.
+    DarwinStaticLib = "libclang_rt.ios.a";
   } else {
     // The dynamic runtime library was merged with libSystem for 10.6 and
     // beyond; only 10.4 and 10.5 need an additional runtime library.