https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105838
Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |fxcoudert at gcc dot gnu.org --- Comment #25 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> --- The new test (g++.dg/tree-ssa/initlist-opt5.C) fails on darwin. The gimple dump is like this: void f (const char * p) { const struct basic_string * retval.0; const struct basic_string * D.24981; const struct basic_string * D.24982; long int D.24983; struct allocator D.24824; struct initializer_list lst; const struct basic_string D.24980[72]; try { lst = {}; lst._M_len = 72; D.24981 = &D.24980; D.24982 = D.24981; D.24983 = 71; try { _4 = D.24982; try { std::allocator<char>::allocator (&D.24824); try { std::__cxx11::basic_string<char>::basic_string (_4, "aahing", &D.24824); D.24982 = D.24982 + 32; D.24983 = D.24983 + -1; _5 = D.24982; std::__cxx11::basic_string<char>::basic_string (_5, "aaliis", &D.24824); D.24982 = D.24982 + 32; D.24983 = D.24983 + -1; _6 = D.24982; std::__cxx11::basic_string<char>::basic_string (_6, "aarrgh", &D.24824); D.24982 = D.24982 + 32; D.24983 = D.24983 + -1; _7 = D.24982; [...] std::__cxx11::basic_string<char>::basic_string (_75, "absent", &D.24824); D.24982 = D.24982 + 32; D.24983 = D.24983 + -1; retval.0 = D.24981; D.24983 = 71; lst._M_array = &D.24980; } finally { std::allocator<char>::~allocator (&D.24824); } } finally { D.24824 = {CLOBBER(eol)}; } } catch { { const struct basic_string * D.24984; if (D.24981 != 0B) goto <D.27734>; else goto <D.27735>; <D.27734>: _1 = 71 - D.24983; _2 = (sizetype) _1; _3 = _2 * 32; D.24984 = D.24981 + _3; <D.27736>: if (D.24984 == D.24981) goto <D.27737>; else goto <D.27738>; <D.27738>: D.24984 = D.24984 + 18446744073709551584; std::__cxx11::basic_string<char>::~basic_string (D.24984); goto <D.27736>; <D.27737>: goto <D.27739>; <D.27735>: <D.27739>: } } try { g (&lst); } finally { { const struct basic_string * D.24985; D.24985 = &D.24980 + 2304; <D.27740>: if (&D.24980 == D.24985) goto <D.27741>; else goto <D.27742>; <D.27742>: D.24985 = D.24985 + 18446744073709551584; std::__cxx11::basic_string<char>::~basic_string (D.24985); goto <D.27740>; <D.27741>: } } } finally { lst = {CLOBBER(eol)}; D.24980 = {CLOBBER(eol)}; } } __attribute__((always_inline)) void std::allocator<char>::allocator (struct allocator * const this) { try { { std::__new_allocator<char>::__new_allocator (this); try { } catch { std::__new_allocator<char>::~__new_allocator (this); } } } catch { <<<eh_must_not_throw (terminate)>>> } } __attribute__((always_inline)) void std::__new_allocator<char>::__new_allocator (struct __new_allocator * const this) { try { { } } catch { <<<eh_must_not_throw (terminate)>>> } } __attribute__((always_inline)) void std::allocator<char>::~allocator (struct allocator * const this) { try { { try { } finally { std::__new_allocator<char>::~__new_allocator (this); } } } catch { <<<eh_must_not_throw (terminate)>>> } } void std::__new_allocator<char>::~__new_allocator (struct __new_allocator * const this) { try { { } } catch { <<<eh_must_not_throw (terminate)>>> } }