Strengthen macOS extended frame test

Adding test to verify correct behavior from swift when targeting arm64
macOS. We caught the fact that the optimizer got smarter on arm64 in the
watchOS test, which doesn't seem to get run in PR testing. The updated
test catches it now.

Author: etcwilde

test/IRGen/swift_async_extended_frame_info.swift

@@ -6,11 +6,17 @@
 // RUN: %target-swift-frontend -disable-availability-checking -swift-async-frame-pointer=never -target x86_64-apple-macosx12 %s -S | %FileCheck  -check-prefix=NEVER %s
 // RUN: %target-swift-frontend -disable-availability-checking -swift-async-frame-pointer=always -target x86_64-apple-macosx11 %s -S | %FileCheck  -check-prefix=ALWAYS %s
 // RUN: %target-swift-frontend -disable-availability-checking -swift-async-frame-pointer=always -target x86_64-apple-macosx12 %s -S | %FileCheck  -check-prefix=ALWAYS %s
+// RUN: %target-swift-frontend -disable-availability-checking -swift-async-frame-pointer=never -target arm64-apple-macos12 %s -S | %FileCheck -check-prefix=NEVER-ARM64 %s
+// RUN: %target-swift-frontend -disable-availability-checking -swift-async-frame-pointer=always -target arm64-apple-macos12 %s -S | %FileCheck -check-prefix=ALWAYS-ARM64 %s
 
 // REQUIRES: OS=macosx
-// REQUIRES: CPU=x86_64
+// REQUIRES: CODEGENERATOR=X86 && CODEGENERATOR=AArch64
+
+@_silgen_name("opaque_function")
+func blarpy()
 
 public func someAsyncFunction() async {
+    blarpy()
 }
 
 // AUTO: s31swift_async_extended_frame_info17someAsyncFunctionyyYaF:
@@ -26,3 +32,11 @@ public func someAsyncFunction() async {
 // AUTO: .weak_reference _swift_async_extendedFramePointerFlags
 // NEVER-NOT: .weak_reference _swift_async_extendedFramePointerFlags
 // ALWAYS-NOT: .weak_reference _swift_async_extendedFramePointerFlags
+
+// NEVER-ARM64: s31swift_async_extended_frame_info17someAsyncFunctionyyYaFTY0
+// NEVER-ARM64-NOT: swift_async_extendedFramePointerFlags
+// NEVER-ARM64-NOT: #0x1000000000000000
+
+// ALWAYS-ARM64: s31swift_async_extended_frame_info17someAsyncFunctionyyYaFTY0
+// ALWAYS-ARM64-NOT: swift_async_extendedFramePointerFlags
+// ALWAYS-ARM64: #0x1000000000000000