1 files changed, 1 insertions, 0 deletions
diff --git a/src/binary-reader-ir.cc b/src/binary-reader-ir.cc
index 5736e302..2eb2342b 100644
--- a/src/binary-reader-ir.cc
+++ b/src/binary-reader-ir.cc
@@ -788,6 +788,7 @@ Result BinaryReaderIR::OnOpcode(Opcode opcode) {
     return AppendExpr(std::move(metadata));
   }
   module_->features_used.simd |= (opcode.GetResultType() == Type::V128);
+  module_->features_used.threads |= (opcode.GetPrefix() == 0xfe);
   return Result::Ok;
 }