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fix(kernel/default_converter): discard constraints when optimization fails

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This commit is contained in:
Leonardo de Moura 2015-05-07 15:02:29 -07:00
parent f6a1d1c864
commit 45c8cdc626
1 changed files with 5 additions and 2 deletions
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7
src/kernel/default_converter.cpp
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@ -486,10 +486,13 @@ pair<bool, constraint_seq> default_converter::is_def_eq_core(expr const & t, exp
// If they are, then t_n and s_n must be definitionally equal, and we can
// skip the delta-reduction step.
// If the flag use_conv_opt() is not true, then we skip this optimization
constraint_seq tmp_cs;
if (!is_opaque(*d_t) && d_t->use_conv_opt() &&
is_def_eq(const_levels(get_app_fn(t_n)), const_levels(get_app_fn(s_n)), cs) &&
is_def_eq_args(t_n, s_n, cs))
is_def_eq(const_levels(get_app_fn(t_n)), const_levels(get_app_fn(s_n)), tmp_cs) &&
is_def_eq_args(t_n, s_n, tmp_cs)) {
cs += tmp_cs;
return to_bcs(true, cs);
}
}
}
t_n = whnf_core(unfold_names(t_n, d_t->get_weight() - 1));