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      1 #ifndef UTILS_H
      2 #define UTILS_H
      3 
      4 inline void break_optimization(void *arg) {
      5   __asm__ __volatile__("" : : "r" (arg) : "memory");
      6 }
      7 
      8 // Tests will instantiate this class to pad out bit sets to test out the various
      9 // ways we can represent the bit set (32-bit inline, 64-bit inline, memory).
     10 // This class has 37 virtual member functions, which forces us to use a
     11 // pointer-aligned bitset.
     12 template <typename T, unsigned I>
     13 class Deriver : T {
     14   virtual void f() {}
     15   virtual void g() {}
     16   virtual void f1() {}
     17   virtual void f2() {}
     18   virtual void f3() {}
     19   virtual void f4() {}
     20   virtual void f5() {}
     21   virtual void f6() {}
     22   virtual void f7() {}
     23   virtual void f8() {}
     24   virtual void f9() {}
     25   virtual void f10() {}
     26   virtual void f11() {}
     27   virtual void f12() {}
     28   virtual void f13() {}
     29   virtual void f14() {}
     30   virtual void f15() {}
     31   virtual void f16() {}
     32   virtual void f17() {}
     33   virtual void f18() {}
     34   virtual void f19() {}
     35   virtual void f20() {}
     36   virtual void f21() {}
     37   virtual void f22() {}
     38   virtual void f23() {}
     39   virtual void f24() {}
     40   virtual void f25() {}
     41   virtual void f26() {}
     42   virtual void f27() {}
     43   virtual void f28() {}
     44   virtual void f29() {}
     45   virtual void f30() {}
     46   virtual void f31() {}
     47   virtual void f32() {}
     48   virtual void f33() {}
     49   virtual void f34() {}
     50   virtual void f35() {}
     51 };
     52 
     53 #endif
     54