negative zero for f64

1 files changed, 8 insertions, 2 deletions

diff --git a/src/wasm-interpreter.h b/src/wasm-interpreter.h
index 21d6fbd9f..4ba5a7427 100644
--- a/src/wasm-interpreter.h
+++ b/src/wasm-interpreter.h
@@ -364,8 +364,14 @@ public:
             case Mul:      return Flow(Literal(l * r));
             case Div:      return Flow(Literal(l / r));
             case CopySign: return Flow(Literal(std::copysign(l, r)));
-            case Min:      return Flow(Literal(std::min(l, r)));
-            case Max:      return Flow(Literal(std::max(l, r)));
+            case Min: {
+              if (l == r && l == 0) return Literal(1/l < 0 ? l : r);
+              return Literal(std::min(l, r));
+            }
+            case Max: {
+              if (l == r && l == 0) return Literal(1/l < 0 ? r : l);
+              return Literal(std::max(l, r));
+            }
             default: abort();
           }
         }