user: Converte this assembly snippet into its equivalent C code:

```asm
<benchmark>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x58,%rsp
  mov    %edi,-0x74(%rbp)
  mov    %esi,-0x78(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%rbx
  mov    -0x78(%rbp),%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x68(%rbp)
  movslq %eax,%rdx
  mov    %rdx,%r14
  mov    $0x0,%r15d
  movslq %eax,%rdx
  mov    %rdx,%r12
  mov    $0x0,%r13d
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%esi
  mov    $0x0,%edx
  div    %rsi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L85:
  cmp    %rdx,%rsp
  je     L139
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L85
L139:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L58
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L58:
  mov    %rsp,%rax
  add    $0x7,%rax
  shr    $0x3,%rax
  shl    $0x3,%rax
  mov    %rax,-0x60(%rbp)
  mov    -0x78(%rbp),%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x58(%rbp)
  movslq %eax,%rdx
  mov    %rdx,%r10
  mov    $0x0,%r11d
  movslq %eax,%rdx
  mov    %rdx,%r8
  mov    $0x0,%r9d
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%esi
  mov    $0x0,%edx
  div    %rsi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L105:
  cmp    %rdx,%rsp
  je     L153
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L105
L153:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L86
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L86:
  mov    %rsp,%rax
  add    $0x7,%rax
  shr    $0x3,%rax
  shl    $0x3,%rax
  mov    %rax,-0x50(%rbp)
  movl   $0x0,-0x6c(%rbp)
  jmp    L39
L4:
  mov    $0x0,%eax
  call   <rand_double@plt>
  movsd  D58(%rip),%xmm1
  mulsd  %xmm1,%xmm0
  movsd  D23(%rip),%xmm1
  subsd  %xmm1,%xmm0
  mov    -0x60(%rbp),%rax
  mov    -0x6c(%rbp),%edx
  movslq %edx,%rdx
  movsd  %xmm0,(%rax,%rdx,8)
  mov    -0x50(%rbp),%rax
  mov    -0x6c(%rbp),%edx
  movslq %edx,%rdx
  pxor   %xmm0,%xmm0
  movsd  %xmm0,(%rax,%rdx,8)
  addl   $0x1,-0x6c(%rbp)
L39:
  mov    -0x6c(%rbp),%eax
  cmp    -0x78(%rbp),%eax
  jl     L4
  mov    $0x0,%eax
  call   <tic@plt>
  movq   %xmm0,%rax
  mov    %rax,-0x48(%rbp)
  movl   $0x0,-0x6c(%rbp)
  jmp    L113
L48:
  mov    -0x60(%rbp),%rax
  movsd  (%rax),%xmm1
  movsd  D51(%rip),%xmm0
  addsd  %xmm1,%xmm0
  mov    -0x60(%rbp),%rax
  movsd  %xmm0,(%rax)
  mov    -0x50(%rbp),%rdx
  mov    -0x60(%rbp),%rsi
  mov    -0x78(%rbp),%eax
  mov    $0x1,%r8d
  mov    %rdx,%rcx
  mov    $0x1,%edx
  mov    D20(%rip),%rdi
  movq   %rdi,%xmm0
  mov    %eax,%edi
  call   <stdlib_strided_dcusumpw@plt>
  mov    -0x50(%rbp),%rax
  movsd  (%rax),%xmm0
  mov    -0x50(%rbp),%rax
  movsd  (%rax),%xmm1
  ucomisd %xmm1,%xmm0
  jp     L82
  ucomisd %xmm1,%xmm0
  je     L35
L82:
  lea    D40(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  jmp    L6
L35:
  addl   $0x1,-0x6c(%rbp)
L113:
  mov    -0x6c(%rbp),%eax
  cmp    -0x74(%rbp),%eax
  jl     L48
L6:
  mov    $0x0,%eax
  call   <tic@plt>
  movq   %xmm0,%rax
  movq   %rax,%xmm0
  subsd  -0x48(%rbp),%xmm0
  movsd  %xmm0,-0x40(%rbp)
  mov    -0x78(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    -0x50(%rbp),%rax
  movslq %edx,%rdx
  movsd  (%rax,%rdx,8),%xmm0
  mov    -0x78(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    -0x50(%rbp),%rax
  movslq %edx,%rdx
  movsd  (%rax,%rdx,8),%xmm1
  ucomisd %xmm1,%xmm0
  jp     L13
  ucomisd %xmm1,%xmm0
  je     L73
L13:
  lea    D40(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
L73:
  movsd  -0x40(%rbp),%xmm0
  mov    %rbx,%rsp
  movq   %xmm0,%rax
  mov    -0x38(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L5
  call   <__stack_chk_fail@plt>
L5:
  movq   %rax,%xmm0
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
```

tool_calls: name: disassemble_data
arguments: data_tag: D58
type_infered: f64
name: disassemble_data
arguments: data_tag: D23
type_infered: f64
name: disassemble_data
arguments: data_tag: D51
type_infered: f64
name: disassemble_data
arguments: data_tag: D20
type_infered: f64
name: disassemble_data
arguments: data_tag: D40
type_infered: string

tool: D58: 20000

tool: D23: 10000

tool: D51: 1

tool: D20: 0

tool: D40: should not return NaN


assistant: ```c
double benchmark(int iterations, int len) {
  double elapsed;
  double x[len];
  double y[len];
  double t;
  int i;
  for (i = 0; i < len; i++) {
    x[i] = (rand_double() * 20000.0) - 10000.0;
    y[i] = 0.0;
  }
  t = tic();
  for (i = 0; i < iterations; i++) {
    x[0] += 1.0;
    stdlib_strided_dcusumpw(len, 0.0, x, 1, y, 1);
    if (y[0] != y[0]) {
      printf("should not return NaN\n");
      break;
    }
  }
  elapsed = tic() - t;
  if (y[len - 1] != y[len - 1]) {
    printf("should not return NaN\n");
  }
  return elapsed;
}
```