ARM64: initial clang support commit.

This adds Clang support for the ARM64 backend. There are definitely
still some rough edges, so please bring up any issues you see with
this patch.

As with the LLVM commit though, we think it'll be more useful for
merging with AArch64 from within the tree.

llvm-svn: 205100

2 files changed, 47 insertions, 0 deletions

diff --git a/clang/test/SemaObjC/opaque-is-access-warn.m b/clang/test/SemaObjC/opaque-is-access-warn.m
new file mode 100644
index 00000000000..ac0f724df6f
--- /dev/null
+++ b/clang/test/SemaObjC/opaque-is-access-warn.m
@@ -0,0 +1,24 @@
+// RUN: %clang -target x86_64-apple-darwin -arch arm64 -mios-version-min=7 -fsyntax-only -Wdeprecated-objc-isa-usage %s -Xclang -verify
+// RUN: %clang -target x86_64-apple-darwin -arch arm64 -mios-version-min=7 -fsyntax-only %s -Xclang -verify
+// RUN: %clang -target x86_64-apple-darwin -mios-simulator-version-min=7 -fsyntax-only -Wdeprecated-objc-isa-usage %s -Xclang -verify
+// rdar://10709102
+
+typedef struct objc_object {
+  struct objc_class *isa;
+} *id;
+
+@interface NSObject {
+  struct objc_class *isa;
+}
+@end
+@interface Whatever : NSObject
++self;
+@end
+
+static void func() {
+
+  id x;
+
+  [(*x).isa self]; // expected-error {{direct access to Objective-C's isa is deprecated in favor of object_getClass()}}
+  [x->isa self];   // expected-error {{direct access to Objective-C's isa is deprecated in favor of object_getClass()}}
+}
diff --git a/clang/test/SemaObjC/opaque-is-access.m b/clang/test/SemaObjC/opaque-is-access.m
new file mode 100644
index 00000000000..89d91b35606
--- /dev/null
+++ b/clang/test/SemaObjC/opaque-is-access.m
@@ -0,0 +1,23 @@
+// RUN: %clang -target x86_64-apple-darwin -arch arm64 -mios-version-min=7 -fsyntax-only %s -Xclang -verify
+// RUN: %clang -target x86_64-apple-darwin -arch x86_64 -mios-simulator-version-min=7 -fsyntax-only %s -Xclang -verify
+// rdar://10709102
+
+typedef struct objc_object {
+  struct objc_class *isa;
+} *id;
+
+@interface NSObject {
+  struct objc_class *isa;
+}
+@end
+@interface Whatever : NSObject
++self;
+@end
+
+static void func() {
+
+  id x;
+
+  [(*x).isa self]; // expected-error {{direct access to Objective-C's isa is deprecated in favor of object_getClass()}}
+  [x->isa self];   // expected-error {{direct access to Objective-C's isa is deprecated in favor of object_getClass()}}
+}