message: Enable ExpOp test in `mlir_gpu_lhlo_gen_test`.
diff: @@ -84,7 +84,20 @@ ENTRY %Select (p: pred[2,2], x: f32[2,2], y: f32[2,2]) -> f32[2,2] {
  )");
  }
  -// TODO(pifon): Re-enable the test with ExpOp.
  +TEST_F(LhloGenTest, Exp) {
  + CompileAndVerifyIr(R"(
  +HloModule Exp
  +
  +ENTRY %Exp (x: f32[2,2]) -> f32[2,2] {
  + %x = f32[2,2]{1,0} parameter(0)
  + ROOT %exp = f32[2,2]{1,0} exponential(f32[2,2]{1,0} %x)
  +})",
  + R"(
  +;CHECK: func @exponential(%[[ARG0:.*]]: [[TYPE:.*]], %[[ARG1:.*]]: [[TYPE]]) {
  +;CHECK: "xla_lhlo.exp"(%[[ARG0]], %[[ARG1]]) {name = "exponential"} : ([[TYPE]], [[TYPE]]) -> ()
  +;CHECK: }
  + )");
  +}
  TEST_F(LhloGenTest, AddInGPUDialect) {
  CompileAndVerifyIr(R"(
  