[darwin] [builtins] Stop generating cc_kext_ios5 and move iOS architectures out of cc_kext into cc_kext_ios

Summary:
This corresponds to a patch to compiler-rt (D13112).

Xcode 7 doesn't support targeting iOS5 and earlier. Instead of just dropping cc_kext_ios5, I've repurposed it to cc_kext_ios, and I'm pulling the iOS architectures out of cc_kext. Putting OS X and iOS slices inside the same archive was just odd.

Reviewers: bogner, bob.wilson

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D13113

llvm-svn: 248442

Author: Chris Bieneman

clang/lib/Driver/ToolChains.cpp

@@ -620,12 +620,10 @@ void DarwinClang::AddCCKextLibArgs(const ArgList &Args,
   llvm::sys::path::append(P, "lib", "darwin");
 
   // Use the newer cc_kext for iOS ARM after 6.0.
-  if (!isTargetIPhoneOS() || isTargetIOSSimulator() ||
-      getTriple().getArch() == llvm::Triple::aarch64 ||
-      !isIPhoneOSVersionLT(6, 0)) {
-    llvm::sys::path::append(P, "libclang_rt.cc_kext.a");
+  if (isTargetIPhoneOS()) {
+    llvm::sys::path::append(P, "libclang_rt.cc_kext_ios.a");
   } else {
-    llvm::sys::path::append(P, "libclang_rt.cc_kext_ios5.a");
+    llvm::sys::path::append(P, "libclang_rt.cc_kext.a");
   }
 
   // For now, allow missing resource libraries to support developers who may

clang/runtime/compiler-rt/Makefile

@@ -89,7 +89,7 @@ RuntimeLibrary.darwin.Configs += ios.a profile_ios.a
 endif
 
 ifneq ($(IOS_SDK),)
-RuntimeLibrary.darwin.Configs += cc_kext_ios5.a
+RuntimeLibrary.darwin.Configs += cc_kext_ios.a
 endif
 
 ifneq ($(IOSSIM_SDK),)