Initial Commit - Forked from PeakRDL-regblock @ a440cc19769069be831d267505da4f3789a26695

tests/lib/synthesizers/__init__.py

@@ -0,0 +1,30 @@
+from typing import List, Optional, Type
+import functools
+
+from .base import Synthesizer
+from .vivado import Vivado
+
+ALL_SYNTHESIZERS: List[Synthesizer]
+ALL_SYNTHESIZERS = [
+    Vivado,
+]
+
+@functools.lru_cache()
+def get_synthesizer_cls(name: str) -> Optional[Type[Synthesizer]]:
+    if name == "skip":
+        return None
+
+    if name == "auto":
+        # Find the first tool that is installed
+        for synth_cls in ALL_SYNTHESIZERS:
+            if synth_cls.is_installed():
+                return synth_cls
+        raise ValueError("Could not find any installed synthesis tools")
+
+    # Look up which explicit synth tool name was specified
+    for synth_cls in ALL_SYNTHESIZERS:
+        if synth_cls.name == name:
+            if not synth_cls.is_installed():
+                raise ValueError("Synthesis tool '%s' is not installed" % synth_cls.name)
+            return synth_cls
+    raise RuntimeError

tests/lib/synthesizers/base.py

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+from typing import TYPE_CHECKING, List
+
+if TYPE_CHECKING:
+    from ..synth_testcase import SynthTestCase
+
+class Synthesizer:
+    name = ""
+
+    @classmethod
+    def is_installed(cls) -> bool:
+        raise NotImplementedError
+
+    def __init__(self, testcase: 'SynthTestCase' = None) -> None:
+        self.testcase = testcase
+
+    def run(self) -> None:
+        raise NotImplementedError

tests/lib/synthesizers/vivado.py

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+import os
+import subprocess
+import shutil
+
+from .base import Synthesizer
+
+class Vivado(Synthesizer):
+    name = "vivado"
+
+    @classmethod
+    def is_installed(cls) -> bool:
+        return shutil.which("vivado") is not None
+
+    def run(self) -> None:
+        script = os.path.join(
+            os.path.dirname(__file__),
+            "vivado_scripts/run.tcl"
+        )
+
+        cmd = [
+            "vivado", "-nojournal", "-notrace",
+            "-mode", "batch",
+            "-log", "out.log",
+            "-source", script,
+            "-tclargs"
+        ]
+        cmd.extend(self.testcase._get_synth_files())
+
+        subprocess.run(cmd, check=True)

tests/lib/synthesizers/vivado_scripts/constr.xdc

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+
+create_clock -period 10.000 -name clk [get_ports clk]
+
+set_input_delay -clock [get_clocks clk] -min -add_delay 0.000 [get_ports -filter {(DIRECTION == IN) && (NAME != clk)}]
+set_input_delay -clock [get_clocks clk] -max -add_delay 0.000 [get_ports -filter {(DIRECTION == IN) && (NAME != clk)}]
+
+set_output_delay -clock [get_clocks clk] -min -add_delay 0.000 [get_ports -filter {DIRECTION == OUT}]
+set_output_delay -clock [get_clocks clk] -max -add_delay 0.000 [get_ports -filter {DIRECTION == OUT}]

tests/lib/synthesizers/vivado_scripts/run.tcl

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+set this_dir [file dirname [file normalize [info script]]]
+set files $argv
+
+
+# Multi-driven
+set_msg_config -id {[Synth 8-6858]} -new_severity "ERROR"
+set_msg_config -id {[Synth 8-6859]} -new_severity "ERROR"
+
+# Implicit net
+set_msg_config -id {[Synth 8-992]} -new_severity "ERROR"
+
+# Non-combo always_comb
+set_msg_config -id {[Synth 8-87]} -new_severity "ERROR"
+
+# Latch
+set_msg_config -id {[Synth 8-327]} -new_severity "ERROR"
+
+# Timing loop
+set_msg_config -id {[Synth 8-295]} -new_severity "ERROR"
+
+# Promote all critical warnings to errors
+set_msg_config -severity {CRITICAL WARNING} -new_severity "ERROR"
+
+
+set_part [lindex [get_parts] 0]
+read_verilog -sv $files
+read_xdc $this_dir/constr.xdc
+synth_design -top regblock -mode out_of_context
+
+#write_checkpoint -force synth.dcp
+
+if {[get_msg_config -count -severity {CRITICAL WARNING}] || [get_msg_config -count -severity ERROR]} {
+    error "Encountered errors"
+}