((ADD|SUB|AND|OR|XOR)Lmodify [off1+off2] {sym} base val mem)

// Fold constants into stores.
(MOVQstore [off] {sym} ptr (MOVQconst [c]) mem) && validVal(c) =>
	(MOVQstoreconst [makeValAndOff(int32(c),off)] {sym} ptr mem)
(MOVLstore [off] {sym} ptr (MOV(L|Q)const [c]) mem) =>
	(MOVLstoreconst [makeValAndOff(int32(c),off)] {sym} ptr mem)

		t.Fatalf("Unable to create file, %s", err)
	}

	testCases := []struct {
		volName     string
		expectedErr error
	}{
		// TestXLStorage case  - 1.
		// A valida case. Empty vol, should be possible to delete.
		{
			volName:     "success-vol",
			expectedErr: nil,
		},
		// TestXLStorage case - 2.
		// volume is non-existent.
		{
			volName:     "nonexistent-vol",