1 files changed, 8 insertions, 0 deletions
diff --git a/include/wabt/ir.h b/include/wabt/ir.h
index 68846bc0..36372441 100644
--- a/include/wabt/ir.h
+++ b/include/wabt/ir.h
@@ -1245,6 +1245,14 @@ struct Module {
   BindingHash memory_bindings;
   BindingHash data_segment_bindings;
   BindingHash elem_segment_bindings;
+
+  // For a subset of features, the BinaryReaderIR tracks whether they are
+  // actually used by the module. wasm2c (CWriter) uses this information to
+  // limit its output in some cases.
+  struct {
+    bool simd = false;
+    bool exceptions = false;
+  } features_used;
 };
 
 enum class ScriptModuleType {