[dartdevc] switch DDC tests to use Kernel files
This switches the "dartdevk" test configuration to use Kernel IL files
directly, rather than automatically converting Analyzer summaries.
Change-Id: Ifeeff98f298050b206c17678a85ee87909d41f46
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99370
Commit-Queue: Jenny Messerly <jmesserly@google.com>
Auto-Submit: Jenny Messerly <jmesserly@google.com>
Reviewed-by: Vijay Menon <vsm@google.com>
diff --git a/tools/testing/dart/compiler_configuration.dart b/tools/testing/dart/compiler_configuration.dart
index 94561b6..9edb9fb 100644
--- a/tools/testing/dart/compiler_configuration.dart
+++ b/tools/testing/dart/compiler_configuration.dart
@@ -539,10 +539,23 @@
Command createCommand(String inputFile, String outputFile,
List<String> sharedOptions, Map<String, String> environment) {
- // TODO(jmesserly): restore testing on this once we have everyone migrated
- // to DDC's Kernel backend. At that point we'd like to migrate from Analyzer
- // summaries to Kernel IL.
- final useDillFormat = false;
+ /// This can be disabled to test DDC's hybrid mode (automatically converting
+ /// Analyzer summaries to Kernel files).
+ ///
+ /// The current DDC configurations are:
+ ///
+ /// - using Analyzer ASTs and Analyzer summaries: the current default
+ /// configuration; used in internal builds.
+ /// - using Kernel trees and Kernel IL files: the new default for external
+ /// users (e.g. Flutter Web), and in the future, the only DDC mode.
+ /// - using Kernel trees, but Analyzer summaries (converted automatically):
+ /// this was intended to help migrate internal users, but is currently
+ /// unused.
+ ///
+ /// The first two are tested on the bots and are called "dartdevc" and
+ /// "dartdevk" respectively. This flag switches "dartdevk" to use either
+ /// Kernel IL files, or the Analyzer summaries.
+ final useDillFormat = useKernel;
var args = <String>[];
if (useKernel) {
