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-rw-r--r--js/src/jit-test/tests/wasm/simd/ion-bug1641973.js13
1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/simd/ion-bug1641973.js b/js/src/jit-test/tests/wasm/simd/ion-bug1641973.js
new file mode 100644
index 0000000000..7dfdf3afad
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/simd/ion-bug1641973.js
@@ -0,0 +1,13 @@
+// |jit-test| skip-if: !wasmSimdEnabled()
+
+// Fuzz test case. The initial unreachable will result in the subsequent
+// i8x16.shuffle popping null pointers off the value stack. Due to a missing
+// isDeadCode() check in WasmIonCompile.cpp the compiler would dereference those
+// null pointers.
+new WebAssembly.Module(wasmTextToBinary(`
+(module
+ (func (result v128)
+ (unreachable)
+ (i8x16.shuffle 0 0 23 0 4 4 4 4 4 16 1 0 4 4 4 4)))
+`))
+