mirror of https://github.com/YosysHQ/abc.git
Make multiplications use unsigned to avoid UB on overflow
Signed-off-by: Drew Lewis <cannada@google.com>
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@ -90,10 +90,10 @@ struct Abc_Aig_t_
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static unsigned Abc_HashKey2( Abc_Obj_t * p0, Abc_Obj_t * p1, int TableSize )
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{
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unsigned Key = 0;
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Key ^= Abc_ObjRegular(p0)->Id * 7937;
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Key ^= Abc_ObjRegular(p1)->Id * 2971;
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Key ^= Abc_ObjIsComplement(p0) * 911;
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Key ^= Abc_ObjIsComplement(p1) * 353;
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Key ^= (unsigned)Abc_ObjRegular(p0)->Id * 7937;
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Key ^= (unsigned)Abc_ObjRegular(p1)->Id * 2971;
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Key ^= (unsigned)Abc_ObjIsComplement(p0) * 911;
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Key ^= (unsigned)Abc_ObjIsComplement(p1) * 353;
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return Key % TableSize;
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}
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