1 // PR middle-end/36449 2 // { dg-do run } 3 // { dg-options "-O3" } 4 5 extern "C" void exit (int); 6 extern "C" void abort (); 7 8 struct R 9 { 10 short a; 11 short b; 12 }; 13 14 struct S 15 { 16 R e; 17 long f; 18 long g; 19 }; 20 21 struct T 22 { 23 short c; 24 short d; 25 }; 26 27 struct U 28 { 29 long h[0x1ffffff + 1]; 30 T i; 31 }; 32 33 U *j; 34 35 void __attribute__((noinline)) 36 bar () 37 { 38 exit (0); 39 } 40 41 void __attribute__((noinline)) 42 foo () 43 { 44 S s; 45 46 s.e.a = 36; 47 s.e.b = 38; 48 if (s.e.a == j->i.c && s.e.b == j->i.d) 49 bar (); 50 } 51 52 int 53 main () 54 { 55 try 56 { 57 j = new U; 58 } 59 catch (...) 60 { 61 return 0; 62 } 63 j->i.c = 36; 64 j->i.d = 38; 65 j->h[0] = 1; 66 j->h[1] = 2; 67 j->h[2] = 3; 68 foo (); 69 abort (); 70 } 71