WIP: Keccak MVE

example.py

@@ -83,6 +83,10 @@
     example_instances as example_instances_armv8m_cmplx_mag_sqr_fx,
 )
 
+from examples.naive.armv8m.keccak._example import (
+    example_instances as example_instances_armv8m_keccak,
+)
+
 
 def main():
     examples = (
@@ -98,6 +102,7 @@ def main():
         + example_instances_armv8m_flt_r4_fft
         + example_instances_armv8m_fx_r4_fft
         + example_instances_armv8m_ntt_256
+        + example_instances_armv8m_keccak
         + example_instances_armv8m_cmplx_mag_sqr_fx
     )
 

examples/naive/armv8m/keccak/_example.py

@@ -0,0 +1,90 @@
+#
+# Copyright (c) 2022 Arm Limited
+# Copyright (c) 2022 Hanno Becker
+# Copyright (c) 2023 Amin Abdulrahman, Matthias Kannwischer
+# SPDX-License-Identifier: MIT
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+# Author: Amin Abdulrahman <amin@abdulrahman.de>
+#
+
+import os
+
+from common.OptimizationRunner import OptimizationRunner
+import slothy.targets.arm_v81m.arch_v81m as Arch_Armv81M
+import slothy.targets.arm_v81m.cortex_m55r1 as Target_CortexM55r1
+import slothy.targets.arm_v81m.cortex_m85r1 as Target_CortexM85r1
+
+SUBFOLDER = os.path.basename(os.path.dirname(__file__)) + "/"
+
+
+class keccak_mve_4x(OptimizationRunner):
+    def __init__(
+        self, var="", arch=Arch_Armv81M, target=Target_CortexM55r1, timeout=None
+    ):
+        name = "mve-keccak-4x"
+        infile = name
+
+        super().__init__(
+            infile,
+            name=name,
+            arch=arch,
+            target=target,
+            rename=True,
+            var=var,
+            subfolder=SUBFOLDER,
+            funcname="mve_keccak_state_permute_4fold",
+        )
+        self.var = var
+        self.timeout = timeout
+
+    def core(self, slothy):
+        # first pass: replace symbolic register names by architectural registers
+        slothy.config.unsafe_address_offset_fixup = False
+        slothy.config.inputs_are_outputs = True
+        slothy.config.constraints.functional_only = True
+        slothy.config.constraints.allow_reordering = True
+        slothy.config.allow_useless_instructions = True
+        slothy.config.constraints.max_displacement = 0.1
+        slothy.optimize(start="roundstart", end="roundend_pre")
+
+        # second pass: splitting heuristic
+        slothy.config.constraints.functional_only = False
+        slothy.config.constraints.allow_reordering = True
+        slothy.config.variable_size = True
+        slothy.config.constraints.stalls_first_attempt = 64
+        slothy.config.constraints.max_displacement = 1
+        slothy.config.constraints.stalls_maximum_attempt = 4096
+        slothy.config.split_heuristic = True
+        slothy.config.split_heuristic_stepsize = 0.05
+        slothy.config.split_heuristic_factor = 20
+        slothy.config.split_heuristic_repeat = 2
+        slothy.config.split_heuristic_estimate_performance = False
+        slothy.config.split_heuristic_optimize_seam = 2
+
+        slothy.optimize(start="roundstart", end="roundend_pre")
+
+
+example_instances = [
+    # Cortex-M85
+    keccak_mve_4x(target=Target_CortexM85r1),
+    # Cortex-M55
+    keccak_mve_4x(),
+]