Reenable some tests disabled in the past because of an LLVM bug.

The issue no longer reproduces at head.

PiperOrigin-RevId: 480505525

tests/lax_autodiff_test.py

@@ -367,12 +367,6 @@ def testConvGeneralDilatedGrad(self, lhs_shape, rhs_shape, dtype, strides,
     if dtype == np.float16:
       raise SkipTest("float16 numerical issues")  # TODO(mattjj): resolve
 
-    if (jtu.device_under_test() == "cpu" and dtype == np.float64 and
-        lhs_shape == (1,1,6,7) and rhs_shape == (2,1,1,2) and strides == (2, 1)
-        and padding == ((0, -1), (0, 0)) and lhs_dil == (1, 1) and
-        rhs_dil == (1, 1)):
-      # TODO(b/173608403): reenable after LLVM fix.
-      raise SkipTest("Skipping test due to LLVM lowering bug")
     rng = jtu.rand_default(self.rng())
     tol = {dtypes.bfloat16: 1e-0, np.float16: 5e-1, np.float32: 1e-3}
 

tests/lax_scipy_test.py

@@ -252,10 +252,6 @@ def testLogSumExpNans(self):
   @jax.numpy_dtype_promotion('standard')  # This test explicitly exercises dtype promotion
   def testScipySpecialFun(self, scipy_op, lax_op, rng_factory, shapes, dtypes,
                           test_autodiff, nondiff_argnums):
-    if (jtu.device_under_test() == "cpu" and
-        (lax_op is lsp_special.gammainc or lax_op is lsp_special.gammaincc)):
-      # TODO(b/173608403): re-enable test when LLVM bug is fixed.
-      raise unittest.SkipTest("Skipping test due to LLVM lowering bug")
     rng = rng_factory(self.rng())
     args_maker = self._GetArgsMaker(rng, shapes, dtypes)
     args = args_maker()