1 /* PR debug/46893 */ 2 /* { dg-do compile } */ 3 /* { dg-options "-O -g" } */ 4 5 void foo(void)6 foo (void) 7 { 8 union { unsigned long long l; double d; } u = { 0x7ff0000000000000ULL }; 9 double v = 0, w = -u.d; 10 11 if (w) 12 w = v; 13 } 14