1 files changed, 28 insertions, 0 deletions
diff --git a/src/runtime/internal/math/math_test.go b/src/runtime/internal/math/math_test.go
index 9447bd23f9..303eb63405 100644
--- a/src/runtime/internal/math/math_test.go
+++ b/src/runtime/internal/math/math_test.go
@@ -49,3 +49,31 @@ func TestMulUintptr(t *testing.T) {
 		}
 	}
 }
+
+var SinkUintptr uintptr
+var SinkBool bool
+
+var x, y uintptr
+
+func BenchmarkMulUintptr(b *testing.B) {
+	x, y = 1, 2
+	b.Run("small", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			var overflow bool
+			SinkUintptr, overflow = MulUintptr(x, y)
+			if overflow {
+				SinkUintptr = 0
+			}
+		}
+	})
+	x, y = MaxUintptr, MaxUintptr-1
+	b.Run("large", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			var overflow bool
+			SinkUintptr, overflow = MulUintptr(x, y)
+			if overflow {
+				SinkUintptr = 0
+			}
+		}
+	})
+}