diff options
| -rw-r--r-- | src/wasm/wasm-binary.cpp | 3 | ||||
| -rw-r--r-- | src/wasm/wasm-stack.cpp | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/src/wasm/wasm-binary.cpp b/src/wasm/wasm-binary.cpp index 2b8c06c0b..9fe046c27 100644 --- a/src/wasm/wasm-binary.cpp +++ b/src/wasm/wasm-binary.cpp @@ -1090,6 +1090,9 @@ Type WasmBinaryBuilder::getType() { // Single value types are negative; signature indices are non-negative if (type >= 0) { // TODO: Handle block input types properly + if (size_t(type) >= signatures.size()) { + throwError("invalid signature index: " + std::to_string(type)); + } return signatures[type].results; } switch (type) { diff --git a/src/wasm/wasm-stack.cpp b/src/wasm/wasm-stack.cpp index df9ad8620..3c162a9d5 100644 --- a/src/wasm/wasm-stack.cpp +++ b/src/wasm/wasm-stack.cpp @@ -23,7 +23,7 @@ void BinaryInstWriter::emitResultType(Type type) { if (type == Type::unreachable) { o << binaryType(Type::none); } else if (type.isMulti()) { - o << U32LEB(parent.getTypeIndex(Signature(Type::none, type))); + o << S32LEB(parent.getTypeIndex(Signature(Type::none, type))); } else { o << binaryType(type); } |