mirror of https://github.com/YosysHQ/yosys.git
smtbmc: Cache hierarchy for loading multiple yw files
This will be used by sby/tools/cexenum via the incremental interface.
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@ -649,14 +649,20 @@ if aimfile is not None:
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num_steps = max(num_steps, step+2)
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step += 1
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ywfile_hierwitness_cache = None
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def ywfile_constraints(inywfile, constr_assumes, map_steps=None, skip_x=False):
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global ywfile_hierwitness_cache
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if map_steps is None:
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map_steps = {}
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with open(inywfile, "r") as f:
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inyw = ReadWitness(f)
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inits, seqs, clocks, mems = smt.hierwitness(topmod, allregs=True, blackbox=True)
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if ywfile_hierwitness_cache is None:
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ywfile_hierwitness_cache = smt.hierwitness(topmod, allregs=True, blackbox=True)
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inits, seqs, clocks, mems = ywfile_hierwitness_cache
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smt_wires = defaultdict(list)
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smt_mems = defaultdict(list)
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