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      1 // PR target/6087
      2 // The code that moves around insns emitted by reg-stack to cope with
      3 // exception edges lost the REG_DEAD note indicating a pop.  Which
      4 // eventually fills up the register stack resulting in Z == NaN.
      5 
      6 // { dg-do run }
      7 // { dg-options "-O" }
      8 
      9 extern "C" void abort ();
     10 
     11 struct Base
     12 {
     13   virtual ~Base() {}
     14 };
     15 
     16 struct Foo : public Base
     17 {
     18   Foo ();
     19 };
     20 
     21 double x = 3;
     22 double y = 4;
     23 
     24 double bar ()
     25 {
     26   double z = x*x+y*y;
     27   if (z != 25.0)
     28     throw 1;
     29   return z;
     30 }
     31 
     32 Foo::Foo ()
     33 {
     34   bar ();
     35 }
     36 
     37 int main ()
     38 {
     39   try {
     40     int i;
     41     for (i = 0; i < 10; ++i)
     42       new Foo;
     43   } catch (...) {
     44     abort ();
     45   }
     46   return 0;
     47 }
     48