1 files changed, 16 insertions, 0 deletions
diff --git a/src/wasm/literal.cpp b/src/wasm/literal.cpp
index 2c61be12a..d4e1bfc45 100644
--- a/src/wasm/literal.cpp
+++ b/src/wasm/literal.cpp
@@ -467,6 +467,22 @@ bool Literal::isNaN() {
   return false;
 }
 
+bool Literal::isCanonicalNaN() {
+  if (!isNaN()) {
+    return false;
+  }
+  return (type == Type::f32 && NaNPayload(getf32()) == (1u << 23) - 1) ||
+         (type == Type::f64 && NaNPayload(getf64()) == (1ull << 52) - 1);
+}
+
+bool Literal::isArithmeticNaN() {
+  if (!isNaN()) {
+    return false;
+  }
+  return (type == Type::f32 && NaNPayload(getf32()) > (1u << 23) - 1) ||
+         (type == Type::f64 && NaNPayload(getf64()) > (1ull << 52) - 1);
+}
+
 uint32_t Literal::NaNPayload(float f) {
   assert(std::isnan(f) && "expected a NaN");
   // SEEEEEEE EFFFFFFF FFFFFFFF FFFFFFFF