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Remove duplicate implementation of stash_variables #6725

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Merged
merged 1 commit into from
Mar 24, 2022
Merged

Remove duplicate implementation of stash_variables #6725

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21 changes: 1 addition & 20 deletions src/goto-instrument/accelerate/polynomial_accelerator.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -730,7 +730,7 @@ void polynomial_acceleratort::stash_polynomials(
{
expr_sett modified;
utils.find_modified(body, modified);
stash_variables(program, modified, substitution);
utils.stash_variables(program, modified, substitution);

for(std::map<exprt, polynomialt>::iterator it=polynomials.begin();
it!=polynomials.end();
Expand All @@ -740,25 +740,6 @@ void polynomial_acceleratort::stash_polynomials(
}
}

void polynomial_acceleratort::stash_variables(
scratch_programt &program,
expr_sett modified,
substitutiont &substitution)
{
find_symbols_sett vars =
find_symbols_or_nexts(modified.begin(), modified.end());
irep_idt loop_counter_name=to_symbol_expr(loop_counter).get_identifier();
vars.erase(loop_counter_name);

for(const irep_idt &id : vars)
{
const symbolt &orig = symbol_table.lookup_ref(id);
symbolt stashed_sym=utils.fresh_symbol("polynomial::stash", orig.type);
substitution[orig.symbol_expr()]=stashed_sym.symbol_expr();
program.assign(stashed_sym.symbol_expr(), orig.symbol_expr());
}
}

/*
* Finds a precondition which guarantees that all the assumptions and assertions
* along this path hold.
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4 changes: 0 additions & 4 deletions src/goto-instrument/accelerate/polynomial_accelerator.h
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Expand Up @@ -103,10 +103,6 @@ class polynomial_acceleratort
bool check_inductive(
std::map<exprt, polynomialt> polynomials,
goto_programt::instructionst &body);
void stash_variables(
scratch_programt &program,
expr_sett modified,
substitutiont &substitution);
void stash_polynomials(
scratch_programt &program,
std::map<exprt, polynomialt> &polynomials,
Expand Down