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Add initial constraint z polynomial (#1440)

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Linda Guiga 2024-01-02 09:11:38 +01:00 committed by GitHub
parent ef07eabf84
commit 6cf4df7da2
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evm/src/lookup.rs
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@ -210,6 +210,8 @@ pub(crate) fn eval_packed_lookups_generic<F, FE, P, S, const D: usize, const D2:
.fold(P::ZEROS, |acc, x| acc + *x)
* table_with_challenge
- lookup.frequencies_column.eval(local_values);
// Check that in the first row, z = 0;
yield_constr.constraint_first_row(z);
yield_constr.constraint((next_z - z) * table_with_challenge - y);
start += num_helper_columns;
}
@ -299,6 +301,8 @@ pub(crate) fn eval_ext_lookups_circuit<
y = builder.mul_extension(y, table_with_challenge);
y = builder.sub_extension(y, frequencies_column);
// Check that in the first row, z = 0;
yield_constr.constraint_first_row(builder, z);
let mut constraint = builder.sub_extension(next_z, z);
constraint = builder.mul_extension(constraint, table_with_challenge);
constraint = builder.sub_extension(constraint, y);