[flutter_tools] throw if asked to build release for x86_64 (#57874)

packages/flutter_tools/lib/src/build_system/targets/ios.dart

@@ -58,7 +58,13 @@ abstract class AotAssemblyBase extends Target {
       ?.toList()
       ?? <DarwinArch>[DarwinArch.arm64];
     if (targetPlatform != TargetPlatform.ios) {
-      throw Exception('aot_assembly is only supported for iOS applications');
+      throw Exception('aot_assembly is only supported for iOS applications.');
+    }
+    if (iosArchs.contains(DarwinArch.x86_64)) {
+      throw Exception(
+        'release/profile builds are only supported for physical devices. '
+        'attempted to build for $iosArchs.'
+      );
     }
 
     // If we're building multiple iOS archs the binaries need to be lipo'd

packages/flutter_tools/test/general.shard/build_system/targets/ios_test.dart

@@ -2,9 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:file/memory.dart';
 import 'package:file_testing/file_testing.dart';
 import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/logger.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/build_system/build_system.dart';
 import 'package:flutter_tools/src/build_system/targets/dart.dart';
@@ -175,6 +177,30 @@ void main() {
     expect(assetDirectory.childFile('vm_snapshot_data'), isNot(exists));
     expect(assetDirectory.childFile('isolate_snapshot_data'), isNot(exists));
   }));
+
+  test('AotAssemblyRelease throws exception if asked to build for x86 target', () => testbed.run(() async {
+    final FileSystem fileSystem = MemoryFileSystem.test();
+    final Environment environment = Environment.test(
+      fileSystem.currentDirectory,
+      defines: <String, String>{
+        kTargetPlatform: 'ios',
+      },
+      processManager: processManager,
+      artifacts: MockArtifacts(),
+      logger: BufferLogger.test(),
+      fileSystem: fileSystem,
+    );
+    environment.defines[kBuildMode] = 'release';
+    environment.defines[kIosArchs] = 'x86_64';
+
+    expect(const AotAssemblyRelease().build(environment), throwsA(isA<Exception>()
+      .having(
+        (Exception exception) => exception.toString(),
+        'description',
+        contains('release/profile builds are only supported for physical devices.'),
+      )
+    ));
+  }));
 }
 
 class MockArtifacts extends Mock implements Artifacts {}