Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/opt/nrv5.C @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 04ced10e8804 |
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// PR c++/7279 // Test for the named return value optimization with inlining. // Contributed by Jakub Jelinek <jakub@redhat.com>. // { dg-do run } // { dg-options -O2 } enum E { E0, E1, E2, E3 }; struct S { E s0 : 2; bool s1 : 1, s2 : 1, s3 : 1, s4 : 1, s5 : 1, s6 : 1; S (); void foo (E x); }; S::S() : s1 (true), s2 (false), s0 (E1), s3 (true), s4 (false), s5 (true), s6 (false) {} void S::foo (E x) { this->s0 = x; } inline S foo () { S s; s.foo (E0); return s; } inline S bar () { S s; s.foo (E2); return s; } void check (S &s, bool isfoo); void test (bool isfoo) { S a = isfoo ? foo () : bar (); check (a, isfoo); } extern "C" void abort (); void check (S &s, bool isfoo) { if (! s.s1 || s.s2 || ! s.s3 || s.s4 || ! s.s5 || s.s6) abort (); if (s.s0 != (isfoo ? E0 : E2)) abort (); } int main () { test (true); test (false); }