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-rw-r--r--js/src/jit-test/tests/wasm/function-references/br-null.js58
1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/function-references/br-null.js b/js/src/jit-test/tests/wasm/function-references/br-null.js
new file mode 100644
index 0000000000..26d1013de2
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/function-references/br-null.js
@@ -0,0 +1,58 @@
+// |jit-test| skip-if: !wasmFunctionReferencesEnabled()
+
+// br_on_null from constant
+wasmValidateText(`(module
+ (func
+ ref.null extern
+ br_on_null 0
+ drop
+ )
+)`);
+
+// br_on_null from parameter
+wasmValidateText(`(module
+ (func (param externref)
+ local.get 0
+ br_on_null 0
+ drop
+ )
+)`);
+
+// br_on_null with single result
+wasmValidateText(`(module
+ (func (result i32)
+ i32.const 0
+ ref.null extern
+ br_on_null 0
+ drop
+ )
+)`);
+
+// br_on_null with multiple results
+wasmValidateText(`(module
+ (func (result i32 i32 i32)
+ i32.const 0
+ i32.const 1
+ i32.const 2
+ ref.null extern
+ br_on_null 0
+ drop
+ )
+)`);
+
+// Test the branch takes the correct path and results are passed correctly
+let {isNull} = wasmEvalText(`(module
+ (func (export "isNull") (param externref) (result i32)
+ i32.const 1
+ local.get 0
+ br_on_null 0
+ drop
+ drop
+ i32.const 0
+ )
+)`).exports;
+
+assertEq(isNull(null), 1, `null is null`);
+for (let val of WasmNonNullExternrefValues) {
+ assertEq(isNull(val), 0, `${typeof(val)} is not null`);
+}