From d70025250fc49997801ea3a6ce83f2fa29a09d78 Mon Sep 17 00:00:00 2001
From: Louis Verhaard <louis.verhaard@arm.com>
Date: Wed, 20 Jan 2021 17:23:54 +0100
Subject: MLBEDSW-3808: Ported search allocator to python

- Straight port of the C++ implementation to python.
- Renamed the allocator from "Search" to "HillClimb"

Change-Id: I50797d541f326d0264daf79bf7866aef32350a60
Signed-off-by: Louis Verhaard <louis.verhaard@arm.com>
---
 ethosu/vela/test/test_hillclimb_allocation.py | 63 +++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 ethosu/vela/test/test_hillclimb_allocation.py

(limited to 'ethosu/vela/test')

diff --git a/ethosu/vela/test/test_hillclimb_allocation.py b/ethosu/vela/test/test_hillclimb_allocation.py
new file mode 100644
index 00000000..8a56c3f2
--- /dev/null
+++ b/ethosu/vela/test/test_hillclimb_allocation.py
@@ -0,0 +1,63 @@
+# Copyright (C) 2021 Arm Limited or its affiliates. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the License); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an AS IS BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Description:
+# Unit tests for hillclimb_allocator.
+import pytest
+
+from ethosu.vela.hillclimb_allocation import allocate_live_ranges
+from ethosu.vela.live_range import LiveRange
+
+
+test_data = [
+    ([(0, 100, 8000), (0, 1, 8016), (100, 110, 2000), (108, 110, 4000), (109, 110, 6000)], 16016),
+    (
+        [
+            (0, 23, 131072),
+            (4, 5, 65568),
+            (4, 9, 8192),
+            (8, 30, 15360),
+            (10, 11, 65568),
+            (10, 15, 4096),
+            (16, 17, 65552),
+            (16, 21, 2048),
+            (22, 23, 32784),
+            (22, 27, 1024),
+        ],
+        216096,
+    ),
+]
+
+
+def live_range(start_time, end_time, size):
+    lr = LiveRange(None, 1)
+    lr.start_time = start_time
+    lr.end_time = end_time
+    lr.size = size
+    return lr
+
+
+@pytest.mark.parametrize("lrs, expected_size", test_data)
+def test_allocate(lrs, expected_size):
+    """Tests the search allocator"""
+    lr_list = [live_range(start, end, size) for start, end, size in lrs]
+    res = allocate_live_ranges(lr_list)
+    assert len(res) == len(lrs)
+    assert max(addr + lr[2] for addr, lr in zip(res, lrs)) == expected_size
+
+
+def test_allocate_empty_input():
+    assert [] == allocate_live_ranges([])
-- 
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