add a dce at the end of asm2wasm, so it handles code changes from intermediate optimization passes

1 files changed, 1 insertions, 0 deletions

diff --git a/src/asm2wasm.h b/src/asm2wasm.h
index fe9bd0f3f..34825eb61 100644
--- a/src/asm2wasm.h
+++ b/src/asm2wasm.h
@@ -1027,6 +1027,7 @@ void Asm2WasmBuilder::processAsm(Ref ast) {
     passRunner.add("remove-unused-brs");
     passRunner.add("optimize-instructions");
     passRunner.add("post-emscripten");
+    passRunner.add("dce"); // make sure to not emit unreachable code
   }
   passRunner.run();