user: Demonstrate the C code that generates the assembly output below:

```asm
<testKnnSmooth>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x58,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x48(%rsp)
  xor    %eax,%eax
  lea    0x18(%rsp),%rcx
  lea    0x10(%rsp),%rdx
  lea    0xc(%rsp),%rsi
  lea    0x8(%rsp),%rdi
  call   <makeData@plt>
  movq   $0x0,0x20(%rsp)
  mov    D41(%rip),%rax
  mov    %rax,0x28(%rsp)
  mov    D84(%rip),%rax
  mov    %rax,0x30(%rsp)
  mov    D25(%rip),%rax
  mov    %rax,0x38(%rsp)
  mov    0x8(%rsp),%edi
  test   %edi,%edi
  je     L14
  mov    $0x0,%ebx
  lea    D36(%rip),%rbp
L11:
  mov    %ebx,%r9d
  mov    $0x1,%r8d
  mov    0x18(%rsp),%rcx
  mov    0x10(%rsp),%rdx
  mov    0xc(%rsp),%esi
  mov    $0x0,%eax
  call   <Knn_smooth@plt>
  movsd  0x20(%rsp,%rbx,8),%xmm0
  mov    $0xcd,%esi
  mov    %rbp,%rdi
  mov    D76(%rip),%rdx
  movq   %rdx,%xmm2
  pxor   %xmm1,%xmm1
  cvtsi2sd %eax,%xmm1
  mov    $0x3,%eax
  call   <UnitTest_expect_eq_double@plt>
  mov    0x8(%rsp),%edi
  add    $0x1,%rbx
  cmp    %ebx,%edi
  ja     L11
L14:
  movsd  D133(%rip),%xmm0
  movsd  %xmm0,0x20(%rsp)
  movsd  %xmm0,0x28(%rsp)
  mov    D44(%rip),%rax
  mov    %rax,0x30(%rsp)
  mov    D110(%rip),%rax
  mov    %rax,0x38(%rsp)
  mov    0x8(%rsp),%edi
  test   %edi,%edi
  je     L29
  mov    $0x0,%ebx
  lea    D36(%rip),%rbp
L68:
  mov    %ebx,%r9d
  mov    $0x2,%r8d
  mov    0x18(%rsp),%rcx
  mov    0x10(%rsp),%rdx
  mov    0xc(%rsp),%esi
  mov    $0x0,%eax
  call   <Knn_smooth@plt>
  movsd  0x20(%rsp,%rbx,8),%xmm0
  mov    $0xdb,%esi
  mov    %rbp,%rdi
  mov    D76(%rip),%rcx
  movq   %rcx,%xmm2
  pxor   %xmm1,%xmm1
  cvtsi2sd %eax,%xmm1
  mov    $0x3,%eax
  call   <UnitTest_expect_eq_double@plt>
  mov    0x8(%rsp),%edi
  add    $0x1,%rbx
  cmp    %ebx,%edi
  ja     L68
L29:
  movsd  D41(%rip),%xmm0
  movsd  %xmm0,0x20(%rsp)
  movsd  %xmm0,0x28(%rsp)
  movsd  D84(%rip),%xmm0
  movsd  %xmm0,0x30(%rsp)
  movsd  %xmm0,0x38(%rsp)
  mov    0x8(%rsp),%edi
  test   %edi,%edi
  je     L0
  mov    $0x0,%ebx
  lea    D36(%rip),%rbp
L30:
  mov    %ebx,%r9d
  mov    $0x3,%r8d
  mov    0x18(%rsp),%rcx
  mov    0x10(%rsp),%rdx
  mov    0xc(%rsp),%esi
  mov    $0x0,%eax
  call   <Knn_smooth@plt>
  movsd  0x20(%rsp,%rbx,8),%xmm0
  mov    $0xe9,%esi
  mov    %rbp,%rdi
  mov    D76(%rip),%rdx
  movq   %rdx,%xmm2
  pxor   %xmm1,%xmm1
  cvtsi2sd %eax,%xmm1
  mov    $0x3,%eax
  call   <UnitTest_expect_eq_double@plt>
  mov    0x8(%rsp),%edi
  add    $0x1,%rbx
  cmp    %ebx,%edi
  ja     L30
L0:
  mov    0x48(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L59
  add    $0x58,%rsp
  pop    %rbx
  pop    %rbp
  ret
L59:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: tag: D41
datatype: f64
name: extract_symbolic_data
arguments: tag: D84
datatype: f64
name: extract_symbolic_data
arguments: tag: D25
datatype: f64
name: extract_symbolic_data
arguments: tag: D36
datatype: string
name: extract_symbolic_data
arguments: tag: D76
datatype: byte[8]
name: extract_symbolic_data
arguments: tag: D133
datatype: f64
name: extract_symbolic_data
arguments: tag: D44
datatype: f64
name: extract_symbolic_data
arguments: tag: D110
datatype: f64

tool: D41: 1

tool: D84: 2

tool: D25: 3

tool: D36: testKnnSmooth

tool: {"D76": [0xbb,0xbd,0xd7,0xd9,0xdf,0x7c,0xdb,0x3d]}

tool: D133: 0.5

tool: D44: 1.5

tool: D110: 2.5

assistant: ```c
void testKnnSmooth() {
  const int trace = 0;
  unsigned nObs;
  unsigned nDims;
  double *inputsP;
  double *targetsP;
  makeData(&nObs, &nDims, &inputsP, &targetsP);
  {
    const unsigned k = 1;
    double expected[] = {0.0, 1.0, 2.0, 3.0};
    for (unsigned queryIndex = 0; queryIndex < nObs; queryIndex++) {
      double estimate = Knn_smooth(nObs, nDims, inputsP, targetsP, k, queryIndex);
      if (trace)
        printf("queryIndex=%u\n", queryIndex);
      UnitTest_expect_eq_double((expected[queryIndex]), (estimate), (1e-10), __func__, 205);
    }
  }
  {
    const unsigned k = 2;
    double expected[] = {0.5, 0.5, 1.5, 2.5};
    for (unsigned queryIndex = 0; queryIndex < nObs; queryIndex++) {
      double estimate = Knn_smooth(nObs, nDims, inputsP, targetsP, k, queryIndex);
      if (trace)
        printf("queryIndex=%u\n", queryIndex);
      UnitTest_expect_eq_double((expected[queryIndex]), (estimate), (1e-10), __func__, 219);
    }
  }
  {
    const unsigned k = 3;
    double expected[] = {1.0, 1.0, 2.0, 2.0};
    for (unsigned queryIndex = 0; queryIndex < nObs; queryIndex++) {
      double estimate = Knn_smooth(nObs, nDims, inputsP, targetsP, k, queryIndex);
      if (trace)
        printf("queryIndex=%u\n", queryIndex);
      UnitTest_expect_eq_double((expected[queryIndex]), (estimate), (1e-10), __func__, 233);
    }
  }
}
```