introduce hidden flag to configure bytecode optimizers

--
PiperOrigin-RevId: 151170448
MOS_MIGRATED_REVID=151170448

1 files changed, 13 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/java/JavaOptions.java b/src/main/java/com/google/devtools/build/lib/rules/java/JavaOptions.java
index a7b7086ee8..b489c21022 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/java/JavaOptions.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/java/JavaOptions.java
@@ -18,6 +18,7 @@ import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Multimap;
 import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
 import com.google.devtools.build.lib.analysis.config.BuildConfiguration.LabelConverter;
+import com.google.devtools.build.lib.analysis.config.BuildConfiguration.LabelMapConverter;
 import com.google.devtools.build.lib.analysis.config.BuildConfiguration.StrictDepsConverter;
 import com.google.devtools.build.lib.analysis.config.BuildConfiguration.StrictDepsMode;
 import com.google.devtools.build.lib.analysis.config.DefaultsPackage;
@@ -270,6 +271,18 @@ public class JavaOptions extends FragmentOptions {
           + "using this option only has an effect when Proguard is used anyway.")
   public List<Label> extraProguardSpecs;
 
+  /**
+   * Comma-separated list of Mnemonic=label pairs of optimizers to run in the given order, treating
+   * {@code Proguard} specially by substituting in the relevant Proguard binary automatically.
+   * All optimizers must understand the same flags as Proguard.
+   */
+  @Option(name = "experimental_bytecode_optimizers",
+      defaultValue = "Proguard",
+      converter = LabelMapConverter.class,
+      category = "undocumented",
+      help = "Do not use.")
+  public Map<String, Label> bytecodeOptimizers;
+
   @Option(name = "translations",
       defaultValue = "auto",
       category = "semantics",