1 files changed, 38 insertions, 0 deletions
diff --git a/src/passes/pass.cpp b/src/passes/pass.cpp
index b226d6ec9..ec6077941 100644
--- a/src/passes/pass.cpp
+++ b/src/passes/pass.cpp
@@ -73,6 +73,10 @@ std::vector<std::string> PassRegistry::getRegisteredNames() {
   return ret;
 }
 
+bool PassRegistry::containsPass(const std::string& name) {
+  return passInfos.count(name) > 0;
+}
+
 std::string PassRegistry::getPassDescription(std::string name) {
   assert(passInfos.find(name) != passInfos.end());
   return passInfos[name].description;
@@ -715,6 +719,15 @@ void PassRunner::addDefaultGlobalOptimizationPrePasses() {
   //       which can lead to more opportunities for global effects to matter.
 }
 
+void PassRunner::add(std::string passName, std::optional<std::string> passArg) {
+  auto pass = PassRegistry::get()->createPass(passName);
+  if (passArg) {
+    pass->setPassArg(*passArg);
+  }
+
+  doAdd(std::move(pass));
+}
+
 void PassRunner::addDefaultGlobalOptimizationPostPasses() {
   if (options.optimizeLevel >= 2 || options.shrinkLevel >= 1) {
     addIfNoDWARFIssues("dae-optimizing");
@@ -1025,4 +1038,29 @@ bool PassRunner::shouldPreserveDWARF() {
   return true;
 }
 
+bool Pass::hasArgument(const std::string& key) {
+  // An argument with the name of the pass is stored on the instance. Other
+  // arguments are in the global storage.
+  return key == name ? passArg.has_value() : getPassOptions().hasArgument(key);
+}
+
+std::string Pass::getArgument(const std::string& key,
+                              const std::string& errorTextIfMissing) {
+  if (!hasArgument(key)) {
+    Fatal() << errorTextIfMissing;
+  }
+
+  return (key == name) ? *passArg
+                       : getPassOptions().getArgument(key, errorTextIfMissing);
+}
+
+std::string Pass::getArgumentOrDefault(const std::string& key,
+                                       const std::string& defaultValue) {
+  if (key == name) {
+    return passArg.value_or(defaultValue);
+  }
+
+  return getPassOptions().getArgumentOrDefault(key, defaultValue);
+}
+
 } // namespace wasm