diff --git a/test/CodeGen/X86/mul128.ll b/test/CodeGen/X86/mul128.ll
new file mode 100644
index 0000000..c0ce6b3
--- /dev/null
+++ b/test/CodeGen/X86/mul128.ll
@@ -0,0 +1,6 @@
+; RUN: llvm-as < %s | llc -march=x86-64 | grep mul | count 3
+
+define i128 @foo(i128 %t, i128 %u) {
+  %k = mul i128 %t, %u
+  ret i128 %k
+}
diff --git a/test/CodeGen/X86/mul64.ll b/test/CodeGen/X86/mul64.ll
new file mode 100644
index 0000000..cd0f802
--- /dev/null
+++ b/test/CodeGen/X86/mul64.ll
@@ -0,0 +1,6 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep mul | count 3
+
+define i64 @foo(i64 %t, i64 %u) {
+  %k = mul i64 %t, %u
+  ret i64 %k
+}