代码

#include <sys/auxv.h>
#include <stdio.h>
typedef unsigned long long u64;
struct DI { u64 abi; const char*in; u64 insz; char*out; u64 outlim; u64 outsz; char*err;
            u64 errlim; u64 errsz; const char*IB; u64 IBlim; char*OB; u64 OBlim; u64 tscfreq; }
            __attribute__((packed));
static char pad[1048576];
__attribute__((destructor)) static void d(){
  volatile char* p=pad; for(u64 i=0;i<256ULL;i++) p[i*4096]=1;
}
double plus(double a,double b){return a+b;}

评测结果