// { dg-options "-O1 -w -fpermissive" }
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// { dg-options "-O1 -w -fpermissive" }
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// { dg-do "run" }
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// { dg-do "run" }
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// Tests the fold bug described in PR 19650.
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// Tests the fold bug described in PR 19650.
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#include
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#include
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#include
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#include
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#define test(a) ((a) ? 1 : 0)
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#define test(a) ((a) ? 1 : 0)
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typedef int (*arg_cmp_func)();
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typedef int (*arg_cmp_func)();
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class Item_func
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class Item_func
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{
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{
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public:
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public:
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enum Functype { UNKNOWN_FUNC, EQ_FUNC, EQUAL_FUNC };
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enum Functype { UNKNOWN_FUNC, EQ_FUNC, EQUAL_FUNC };
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virtual enum Functype functype() const { return UNKNOWN_FUNC; }
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virtual enum Functype functype() const { return UNKNOWN_FUNC; }
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};
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};
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class Item_bool_func2 : public Item_func
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class Item_bool_func2 : public Item_func
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{
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{
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public:
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public:
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virtual enum Functype functype() const { return EQUAL_FUNC; }
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virtual enum Functype functype() const { return EQUAL_FUNC; }
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};
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};
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class Arg_comparator
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class Arg_comparator
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{
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{
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public:
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public:
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Item_bool_func2 *owner;
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Item_bool_func2 *owner;
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arg_cmp_func func;
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arg_cmp_func func;
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static arg_cmp_func comparator_matrix[4][2];
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static arg_cmp_func comparator_matrix[4][2];
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int Arg_comparator::set_compare_func(Item_bool_func2 *item, int type)
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int Arg_comparator::set_compare_func(Item_bool_func2 *item, int type)
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{
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{
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owner = item;
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owner = item;
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/****************** problematic line is here ************************/
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/****************** problematic line is here ************************/
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func = comparator_matrix[type][test(owner->functype() == Item_func::EQUAL_FUNC)];
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func = comparator_matrix[type][test(owner->functype() == Item_func::EQUAL_FUNC)];
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return 0;
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return 0;
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}
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}
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};
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};
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int compare_string() { return 0; }
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int compare_string() { return 0; }
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int compare_e_string() { return 0; }
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int compare_e_string() { return 0; }
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int compare_real() { return 0; }
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int compare_real() { return 0; }
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int compare_e_real() { return 0; }
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int compare_e_real() { return 0; }
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int compare_int_signed() { return 0; }
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int compare_int_signed() { return 0; }
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int compare_e_int() { return 0; }
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int compare_e_int() { return 0; }
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int compare_row() { return 0; }
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int compare_row() { return 0; }
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int compare_e_row() { return 0; }
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int compare_e_row() { return 0; }
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arg_cmp_func Arg_comparator::comparator_matrix[4][2] =
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arg_cmp_func Arg_comparator::comparator_matrix[4][2] =
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{{&compare_string, &compare_e_string},
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{{&compare_string, &compare_e_string},
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{&compare_real, &compare_e_real},
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{&compare_real, &compare_e_real},
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{&compare_int_signed, &compare_e_int},
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{&compare_int_signed, &compare_e_int},
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{&compare_row, &compare_e_row}};
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{&compare_row, &compare_e_row}};
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void myfunc (const char*p, arg_cmp_func f1, arg_cmp_func f2) __attribute__((noinline));
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void myfunc (const char*p, arg_cmp_func f1, arg_cmp_func f2) __attribute__((noinline));
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void myfunc (const char*p, arg_cmp_func f1, arg_cmp_func f2)
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void myfunc (const char*p, arg_cmp_func f1, arg_cmp_func f2)
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{
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{
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if (f1!=f2)
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if (f1!=f2)
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abort ();
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abort ();
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}
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}
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int main()
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int main()
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{
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{
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Arg_comparator cmp;
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Arg_comparator cmp;
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Item_bool_func2 equal_func;
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Item_bool_func2 equal_func;
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cmp.set_compare_func(&equal_func, 0);
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cmp.set_compare_func(&equal_func, 0);
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myfunc("cmp.func is %p (expected %p)\n", cmp.func, &compare_e_string);
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myfunc("cmp.func is %p (expected %p)\n", cmp.func, &compare_e_string);
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}
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}
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