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fix #3908

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This commit is contained in:
Arie Gurfinkel 2020-04-11 13:58:10 -04:00
parent f821ee38e5
commit 2b27aa1ce6
1 changed files with 5 additions and 1 deletions
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6
src/model/model.cpp
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@ -16,6 +16,7 @@ Author:
Revision History: Revision History:
--*/ --*/
#include "ast/ast.h"
#include "util/top_sort.h" #include "util/top_sort.h"
#include "ast/ast_pp.h" #include "ast/ast_pp.h"
#include "ast/ast_ll_pp.h" #include "ast/ast_ll_pp.h"
@ -189,11 +190,13 @@ model * model::translate(ast_translation & translator) const {
} }
struct model::top_sort : public ::top_sort<func_decl> { struct model::top_sort : public ::top_sort<func_decl> {
func_decl_ref_vector m_pinned; // protect keys in m_occur_count
th_rewriter m_rewrite; th_rewriter m_rewrite;
obj_map<func_decl, unsigned> m_occur_count; obj_map<func_decl, unsigned> m_occur_count;
top_sort(ast_manager& m): top_sort(ast_manager& m):
m_rewrite(m) m_pinned(m), m_rewrite(m)
{ {
params_ref p; params_ref p;
p.set_bool("elim_ite", false); p.set_bool("elim_ite", false);
@ -201,6 +204,7 @@ struct model::top_sort : public ::top_sort<func_decl> {
} }
void add_occurs(func_decl* f) { void add_occurs(func_decl* f) {
m_pinned.push_back(f);
m_occur_count.insert(f, occur_count(f) + 1); m_occur_count.insert(f, occur_count(f) + 1);
} }