user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<target_phi>:
  endbr64
  push   %rbx
  pxor   %xmm0,%xmm0
  mov    %rsi,%rbx
  sub    $0x90,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x88(%rsp)
  xor    %eax,%eax
  movaps %xmm0,0x60(%rsp)
  test   %edx,%edx
  jle    L48
  movss  D205(%rip),%xmm5
  cmp    $0x1,%edx
  je     L33
  movss  %xmm5,0x64(%rsp)
  cmp    $0x2,%edx
  je     L33
  movl   $0x3d638e39,0x68(%rsp)
  cmp    $0x3,%edx
  je     L33
  movl   $0x3d638afd,0x6c(%rsp)
L33:
  movss  0x64(%rsp),%xmm1
  movss  0x68(%rsp),%xmm4
  pxor   %xmm13,%xmm13
  movss  0x6c(%rsp),%xmm0
L13:
  movss  D242(%rip),%xmm7
  movss  0x4(%rdi),%xmm3
  movss  (%rdi),%xmm2
  movss  D455(%rip),%xmm6
  movss  D261(%rip),%xmm9
  subss  %xmm7,%xmm3
  movss  D143(%rip),%xmm10
  subss  %xmm7,%xmm2
  mulss  %xmm1,%xmm3
  mulss  0x4(%rbx),%xmm1
  mulss  %xmm5,%xmm2
  mulss  (%rbx),%xmm5
  addss  %xmm6,%xmm3
  movss  %xmm1,0x1c(%rsp)
  movss  0x8(%rdi),%xmm1
  subss  D433(%rip),%xmm1
  addss  %xmm6,%xmm2
  mulss  %xmm4,%xmm1
  mulss  0x8(%rbx),%xmm4
  movaps %xmm2,%xmm7
  movaps %xmm2,%xmm11
  mulss  %xmm2,%xmm9
  mulss  %xmm2,%xmm7
  mulss  %xmm2,%xmm10
  addss  %xmm6,%xmm1
  movss  %xmm4,0x20(%rsp)
  movss  0xc(%rdi),%xmm4
  subss  D310(%rip),%xmm4
  movss  %xmm9,0x4(%rsp)
  movss  D409(%rip),%xmm9
  mulss  %xmm7,%xmm11
  movaps %xmm1,%xmm8
  movaps %xmm1,%xmm12
  mulss  %xmm0,%xmm4
  movss  %xmm10,0x28(%rsp)
  movaps %xmm1,%xmm15
  mulss  0xc(%rbx),%xmm0
  mulss  %xmm7,%xmm9
  mulss  %xmm3,%xmm10
  mulss  %xmm1,%xmm8
  addss  %xmm6,%xmm4
  movaps %xmm3,%xmm6
  mulss  %xmm3,%xmm6
  movss  %xmm0,0x24(%rsp)
  movaps %xmm3,%xmm0
  movss  %xmm9,0xc(%rsp)
  movss  D162(%rip),%xmm9
  mulss  %xmm7,%xmm9
  mulss  %xmm8,%xmm12
  mulss  %xmm6,%xmm0
  mulss  %xmm12,%xmm15
  movss  %xmm0,0x30(%rsp)
  movaps %xmm0,%xmm14
  movss  D165(%rip),%xmm0
  mulss  %xmm3,%xmm14
  mulss  %xmm3,%xmm0
  movss  %xmm0,(%rsp)
  movss  D167(%rip),%xmm0
  mulss  %xmm1,%xmm0
  movss  %xmm0,0x8(%rsp)
  movss  D357(%rip),%xmm0
  mulss  %xmm6,%xmm0
  movss  %xmm0,0x10(%rsp)
  movaps %xmm2,%xmm0
  mulss  %xmm11,%xmm0
  mulss  D353(%rip),%xmm0
  movss  %xmm0,0x14(%rsp)
  movaps %xmm9,%xmm0
  mulss  %xmm6,%xmm0
  movss  %xmm0,0x18(%rsp)
  movss  D188(%rip),%xmm9
  movss  D72(%rip),%xmm0
  mulss  %xmm1,%xmm9
  addss  %xmm9,%xmm0
  movaps %xmm10,%xmm9
  movss  D245(%rip),%xmm10
  mulss  %xmm11,%xmm10
  addss  %xmm0,%xmm9
  movss  (%rsp),%xmm0
  mulss  %xmm1,%xmm0
  addss  %xmm9,%xmm0
  movss  0x4(%rsp),%xmm9
  mulss  %xmm4,%xmm9
  addss  %xmm0,%xmm9
  movss  0x8(%rsp),%xmm0
  mulss  %xmm4,%xmm0
  addss  %xmm9,%xmm0
  movaps %xmm10,%xmm9
  movss  D251(%rip),%xmm10
  mulss  %xmm2,%xmm10
  addss  %xmm0,%xmm9
  movaps %xmm10,%xmm0
  movss  D495(%rip),%xmm10
  mulss  %xmm6,%xmm0
  mulss  %xmm2,%xmm10
  addss  %xmm9,%xmm0
  movss  0xc(%rsp),%xmm9
  mulss  %xmm1,%xmm9
  addss  %xmm9,%xmm0
  movss  0x10(%rsp),%xmm9
  mulss  %xmm1,%xmm9
  addss  %xmm0,%xmm9
  movaps %xmm10,%xmm0
  movss  D444(%rip),%xmm10
  mulss  %xmm8,%xmm0
  mulss  %xmm2,%xmm10
  addss  %xmm9,%xmm0
  movss  D227(%rip),%xmm9
  mulss  %xmm12,%xmm9
  addss  %xmm9,%xmm0
  movss  D293(%rip),%xmm9
  mulss  %xmm11,%xmm9
  mulss  %xmm6,%xmm9
  addss  %xmm0,%xmm9
  movaps %xmm10,%xmm0
  movss  0x14(%rsp),%xmm10
  mulss  %xmm14,%xmm0
  mulss  %xmm1,%xmm10
  addss  %xmm9,%xmm0
  movss  D339(%rip),%xmm9
  mulss  %xmm14,%xmm9
  addss  %xmm0,%xmm10
  movss  0x18(%rsp),%xmm0
  mulss  %xmm1,%xmm0
  movss  %xmm9,0x2c(%rsp)
  mulss  %xmm1,%xmm9
  addss  %xmm0,%xmm10
  movss  D400(%rip),%xmm0
  mulss  %xmm11,%xmm0
  addss  %xmm10,%xmm9
  movss  D64(%rip),%xmm10
  mulss  %xmm8,%xmm0
  addss  %xmm9,%xmm0
  movss  D425(%rip),%xmm9
  mulss  %xmm7,%xmm9
  mulss  %xmm12,%xmm9
  addss  %xmm0,%xmm9
  movaps %xmm2,%xmm0
  mulss  %xmm10,%xmm0
  mulss  %xmm15,%xmm0
  addss  %xmm0,%xmm9
  movaps %xmm5,%xmm0
  addss  %xmm13,%xmm0
  addss  0x1c(%rsp),%xmm0
  addss  0x20(%rsp),%xmm0
  addss  0x24(%rsp),%xmm0
  ucomiss %xmm13,%xmm0
  jp     L20
  movaps %xmm13,%xmm0
  jne    L20
L12:
  movss  %xmm0,(%rbx)
  mov    0x88(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L85
  add    $0x90,%rsp
  movaps %xmm9,%xmm0
  pop    %rbx
  ret
  nopw   0x0(%rax,%rax,1)
L20:
  mulss  %xmm5,%xmm5
  movss  D143(%rip),%xmm0
  mov    $0x2,%edi
  movss  %xmm4,0x54(%rsp)
  movss  %xmm3,0x58(%rsp)
  mulss  %xmm10,%xmm15
  mulss  %xmm3,%xmm0
  movss  D362(%rip),%xmm3
  movss  %xmm9,0x5c(%rsp)
  mulss  D444(%rip),%xmm14
  movss  %xmm8,0x48(%rsp)
  mulss  %xmm7,%xmm3
  movss  %xmm12,0x44(%rsp)
  movss  %xmm5,0x34(%rsp)
  movss  %xmm13,0x40(%rsp)
  movaps %xmm0,%xmm5
  movss  D261(%rip),%xmm0
  movss  %xmm11,0x50(%rsp)
  addss  %xmm13,%xmm5
  movss  %xmm1,0x3c(%rsp)
  mulss  %xmm4,%xmm0
  movss  D305(%rip),%xmm4
  movss  %xmm7,0x4c(%rsp)
  movss  %xmm2,0x38(%rsp)
  mulss  %xmm7,%xmm4
  addss  %xmm5,%xmm0
  movaps %xmm4,%xmm5
  movss  D327(%rip),%xmm4
  addss  %xmm0,%xmm5
  movss  D251(%rip),%xmm0
  mulss  %xmm2,%xmm4
  mulss  %xmm6,%xmm0
  addss  %xmm5,%xmm0
  movaps %xmm4,%xmm5
  movaps %xmm11,%xmm4
  mulss  %xmm1,%xmm5
  mulss  D102(%rip),%xmm4
  addss  %xmm0,%xmm5
  movss  D495(%rip),%xmm0
  mulss  %xmm8,%xmm0
  addss  %xmm5,%xmm0
  movaps %xmm3,%xmm5
  mulss  %xmm6,%xmm5
  addss  %xmm0,%xmm5
  movss  D87(%rip),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm5,%xmm14
  movaps %xmm4,%xmm5
  mulss  %xmm1,%xmm5
  mulss  %xmm6,%xmm0
  movaps %xmm7,%xmm6
  mulss  D210(%rip),%xmm6
  addss  %xmm14,%xmm5
  mulss  %xmm1,%xmm0
  addss  %xmm5,%xmm0
  movaps %xmm6,%xmm5
  mulss  %xmm8,%xmm5
  addss  %xmm0,%xmm5
  movaps %xmm2,%xmm0
  mulss  D92(%rip),%xmm0
  mulss  %xmm12,%xmm0
  addss  %xmm5,%xmm0
  addss  %xmm15,%xmm0
  call   <pow@plt>
  movss  0x3c(%rsp),%xmm1
  movss  D165(%rip),%xmm2
  mov    $0x2,%edi
  mulss  0x34(%rsp),%xmm0
  movss  0x40(%rsp),%xmm13
  mulss  %xmm1,%xmm2
  movss  0x28(%rsp),%xmm5
  movss  0x58(%rsp),%xmm3
  movss  %xmm1,0x28(%rsp)
  movss  D186(%rip),%xmm6
  movss  0x50(%rsp),%xmm11
  addss  %xmm13,%xmm5
  movss  0x1c(%rsp),%xmm7
  mulss  %xmm3,%xmm6
  movss  %xmm11,0x3c(%rsp)
  movss  %xmm0,0x34(%rsp)
  mulss  %xmm7,%xmm7
  movaps %xmm2,%xmm0
  movss  0x38(%rsp),%xmm2
  addss  %xmm5,%xmm0
  movss  D428(%rip),%xmm5
  mulss  %xmm3,%xmm5
  movss  %xmm7,0x1c(%rsp)
  movss  0x4c(%rsp),%xmm7
  mulss  %xmm2,%xmm5
  addss  %xmm0,%xmm5
  movaps %xmm6,%xmm0
  movss  0x30(%rsp),%xmm6
  movss  %xmm7,0x30(%rsp)
  mulss  %xmm1,%xmm0
  addss  %xmm5,%xmm0
  movss  D118(%rip),%xmm5
  mulss  %xmm3,%xmm5
  mulss  D87(%rip),%xmm3
  mulss  %xmm11,%xmm5
  mulss  %xmm7,%xmm3
  addss  %xmm0,%xmm5
  movss  D351(%rip),%xmm0
  mulss  %xmm1,%xmm3
  mulss  %xmm6,%xmm0
  mulss  D203(%rip),%xmm6
  mulss  %xmm2,%xmm0
  addss  %xmm5,%xmm0
  addss  %xmm0,%xmm3
  movaps %xmm6,%xmm0
  mulss  %xmm1,%xmm0
  addss  %xmm3,%xmm0
  call   <pow@plt>
  movss  0x20(%rsp),%xmm4
  mov    $0x2,%edi
  movss  D167(%rip),%xmm3
  mulss  0x1c(%rsp),%xmm0
  movss  0x34(%rsp),%xmm2
  mulss  %xmm4,%xmm4
  movss  0x28(%rsp),%xmm1
  movss  0x48(%rsp),%xmm8
  movss  0x3c(%rsp),%xmm11
  movss  0x30(%rsp),%xmm7
  movss  0x44(%rsp),%xmm12
  mulss  D63(%rip),%xmm12
  addss  %xmm0,%xmm2
  movss  D188(%rip),%xmm0
  addss  (%rsp),%xmm0
  movss  %xmm4,0x20(%rsp)
  movss  0x54(%rsp),%xmm4
  mulss  %xmm4,%xmm3
  movss  %xmm2,0x1c(%rsp)
  movss  0x38(%rsp),%xmm2
  mulss  %xmm2,%xmm12
  addss  %xmm0,%xmm3
  movss  0xc(%rsp),%xmm0
  addss  %xmm3,%xmm0
  movss  D159(%rip),%xmm3
  addss  0x10(%rsp),%xmm0
  mulss  %xmm1,%xmm3
  mulss  D48(%rip),%xmm1
  mulss  %xmm2,%xmm3
  mulss  %xmm11,%xmm1
  addss  %xmm3,%xmm0
  movss  D126(%rip),%xmm3
  mulss  %xmm8,%xmm3
  mulss  D28(%rip),%xmm8
  addss  %xmm3,%xmm0
  addss  0x14(%rsp),%xmm0
  addss  0x18(%rsp),%xmm0
  addss  0x2c(%rsp),%xmm0
  mulss  %xmm7,%xmm8
  addss  %xmm1,%xmm0
  addss  %xmm8,%xmm0
  addss  %xmm12,%xmm0
  call   <pow@plt>
  mulss  0x20(%rsp),%xmm0
  mov    $0x2,%edi
  movss  0x40(%rsp),%xmm13
  addss  0x1c(%rsp),%xmm0
  movss  0x4(%rsp),%xmm4
  movss  0x24(%rsp),%xmm6
  addss  %xmm13,%xmm4
  mulss  %xmm6,%xmm6
  movss  %xmm0,(%rsp)
  movss  0x8(%rsp),%xmm0
  addss  %xmm4,%xmm0
  movss  %xmm6,0xc(%rsp)
  call   <pow@plt>
  mulss  0xc(%rsp),%xmm0
  addss  (%rsp),%xmm0
  call   <sqrt@plt>
  movss  0x5c(%rsp),%xmm9
  jmp    L12
  nopw   0x0(%rax,%rax,1)
L48:
  pxor   %xmm13,%xmm13
  movaps %xmm13,%xmm0
  movaps %xmm13,%xmm4
  movaps %xmm13,%xmm1
  movaps %xmm13,%xmm5
  jmp    L13
L85:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: tag: D205
datatype: byte[4]
name: disassemble_data
arguments: tag: D242
datatype: f32
name: disassemble_data
arguments: tag: D455
datatype: f32
name: disassemble_data
arguments: tag: D261
datatype: byte[4]
name: disassemble_data
arguments: tag: D143
datatype: byte[4]
name: disassemble_data
arguments: tag: D433
datatype: f32
name: disassemble_data
arguments: tag: D310
datatype: byte[4]
name: disassemble_data
arguments: tag: D409
datatype: byte[4]
name: disassemble_data
arguments: tag: D162
datatype: byte[4]
name: disassemble_data
arguments: tag: D165
datatype: byte[4]
name: disassemble_data
arguments: tag: D167
datatype: byte[4]
name: disassemble_data
arguments: tag: D357
datatype: byte[4]
name: disassemble_data
arguments: tag: D353
datatype: byte[4]
name: disassemble_data
arguments: tag: D188
datatype: byte[4]
name: disassemble_data
arguments: tag: D72
datatype: byte[4]
name: disassemble_data
arguments: tag: D245
datatype: byte[4]
name: disassemble_data
arguments: tag: D251
datatype: byte[4]
name: disassemble_data
arguments: tag: D495
datatype: byte[4]
name: disassemble_data
arguments: tag: D444
datatype: byte[4]
name: disassemble_data
arguments: tag: D227
datatype: byte[4]
name: disassemble_data
arguments: tag: D293
datatype: byte[4]
name: disassemble_data
arguments: tag: D339
datatype: byte[4]
name: disassemble_data
arguments: tag: D400
datatype: byte[4]
name: disassemble_data
arguments: tag: D64
datatype: byte[4]
name: disassemble_data
arguments: tag: D425
datatype: byte[4]
name: disassemble_data
arguments: tag: D362
datatype: byte[4]
name: disassemble_data
arguments: tag: D305
datatype: byte[4]
name: disassemble_data
arguments: tag: D327
datatype: byte[4]
name: disassemble_data
arguments: tag: D102
datatype: byte[4]
name: disassemble_data
arguments: tag: D87
datatype: byte[4]
name: disassemble_data
arguments: tag: D210
datatype: byte[4]
name: disassemble_data
arguments: tag: D92
datatype: byte[4]
name: disassemble_data
arguments: tag: D186
datatype: byte[4]
name: disassemble_data
arguments: tag: D428
datatype: byte[4]
name: disassemble_data
arguments: tag: D118
datatype: byte[4]
name: disassemble_data
arguments: tag: D351
datatype: byte[4]
name: disassemble_data
arguments: tag: D203
datatype: byte[4]
name: disassemble_data
arguments: tag: D63
datatype: byte[4]
name: disassemble_data
arguments: tag: D159
datatype: byte[4]
name: disassemble_data
arguments: tag: D48
datatype: byte[4]
name: disassemble_data
arguments: tag: D126
datatype: byte[4]
name: disassemble_data
arguments: tag: D28
datatype: byte[4]

tool: {"D205": [0x89,0x88,0x88,0x3d]}

tool: D242: 15

tool: D455: 1

tool: {"D261": [0x6c,0x7a,0x20,0xbc]}

tool: {"D143": [0xfb,0x42,0xc1,0x3b]}

tool: D433: 18

tool: {"D310": [0xfe,0xd4,0x8f,0x41]}

tool: {"D409": [0xcb,0xfc,0x76,0x40]}

tool: {"D162": [0x36,0x06,0xca,0xbc]}

tool: {"D165": [0x8c,0x89,0x2d,0xbc]}

tool: {"D167": [0xc6,0x91,0x8f,0x3c]}

tool: {"D357": [0x1b,0x4a,0x68,0x3d]}

tool: {"D353": [0x61,0x58,0xe9,0x3f]}

tool: {"D188": [0xd4,0x77,0xad,0x3b]}

tool: {"D72": [0x93,0x60,0x4a,0x3a]}

tool: {"D245": [0xa5,0x14,0x91,0xbf]}

tool: {"D251": [0xfb,0xf0,0x4e,0xbd]}

tool: {"D495": [0x73,0x69,0x91,0xc0]}

tool: {"D444": [0x40,0x93,0xfa,0x3c]}

tool: {"D227": [0x19,0xb5,0xea,0x3f]}

tool: {"D293": [0x4f,0xae,0xba,0x3c]}

tool: {"D339": [0x7c,0x8f,0x10,0xbd]}

tool: {"D400": [0x85,0x7d,0xca,0xc0]}

tool: {"D64": [0xa6,0xb6,0x3a,0xc0]}

tool: {"D425": [0x5d,0x31,0xed,0x40]}

tool: {"D362": [0xbb,0x02,0x8c,0x3d]}

tool: {"D305": [0xf8,0x9e,0x59,0xc0]}

tool: {"D327": [0xcb,0xfc,0xf6,0x40]}

tool: {"D102": [0x61,0x58,0xe9,0x40]}

tool: {"D87": [0x36,0x06,0x4a,0xbd]}

tool: {"D210": [0x24,0xde,0x97,0xc1]}

tool: {"D92": [0x5d,0x31,0x6d,0x41]}

tool: {"D186": [0x1b,0x4a,0xe8,0x3d]}

tool: {"D428": [0xfb,0xf0,0xce,0xbd]}

tool: {"D118": [0x4f,0xae,0x3a,0x3d]}

tool: {"D351": [0x40,0x93,0xfa,0x3d]}

tool: {"D203": [0x7c,0x8f,0x10,0xbe]}

tool: {"D63": [0xa6,0xb6,0x3a,0xc1]}

tool: {"D159": [0x73,0x69,0x11,0xc1]}

tool: {"D48": [0x85,0x7d,0x4a,0xc1]}

tool: {"D126": [0xd3,0x07,0xb0,0x40]}

tool: {"D28": [0x06,0xe5,0xb1,0x41]}

assistant: ```c
float target_phi(float *x, float *dx, int m) {
  int ncoeff = 20;
  float avdat = 0.7720074E-03;
  float xmin[10] = {-0.15000E+02, -0.15000E+02, -0.18000E+02, -0.18023E+02, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00};
  float xmax[10] = {0.15000E+02, 0.15000E+02, 0.18000E+02, 0.17979E+02, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00};
  float scale[10] = {0};
  float coeff[21] = {0.54136845E-09, 0.52938256E-02, 0.58978773E-02, -0.10591876E-01, -0.97948126E-02, 0.17525565E-01, -0.11334425E+01, -0.50522786E-01, 0.38591793E+01, 0.56711297E-01, -0.45441222E+01, 0.18336517E+01, 0.22788195E-01, 0.30587792E-01, 0.18230096E+01, -0.24661165E-01, -0.35293087E-01, -0.63278222E+01, 0.74122758E+01, -0.29173980E+01, 0.};
  int ientry = 0;
  int i;
  if (ientry == 0) {
    ientry = 1;
    for (i = 0; i < m; i++) {
      if (xmin[i] == xmax[i])
        continue;
      scale[i] = 2. / (xmax[i] - xmin[i]);
    }
  }
  float x1 = 1. + (x[0] - xmax[0]) * scale[0];
  float dx1 = dx[0] * scale[0];
  float x2 = 1. + (x[1] - xmax[1]) * scale[1];
  float dx2 = dx[1] * scale[1];
  float x3 = 1. + (x[2] - xmax[2]) * scale[2];
  float dx3 = dx[2] * scale[2];
  float x4 = 1. + (x[3] - xmax[3]) * scale[3];
  float dx4 = dx[3] * scale[3];
  float x11 = x1;
  float x12 = x11 * x1;
  float x13 = x12 * x1;
  float x14 = x13 * x1;
  float x21 = x2;
  float x22 = x21 * x2;
  float x23 = x22 * x2;
  float x24 = x23 * x2;
  float x31 = x3;
  float x32 = x31 * x3;
  float x33 = x32 * x3;
  float x34 = x33 * x3;
  float x41 = x4;
  float v_target_phi = avdat + coeff[0] + coeff[1] * x31 + coeff[2] * x11 * x21 + coeff[3] * x21 * x31 + coeff[4] * x11 * x41 + coeff[5] * x31 * x41 + coeff[6] * x13 + coeff[7] * x11 * x22;
  v_target_phi = v_target_phi + coeff[8] * x12 * x31 + coeff[9] * x22 * x31 + coeff[10] * x11 * x32 + coeff[11] * x33 + coeff[12] * x13 * x22 + coeff[13] * x11 * x24 + coeff[14] * x14 * x31 + coeff[15] * x12 * x22 * x31 + coeff[16] * x24 * x31;
  v_target_phi = v_target_phi + coeff[17] * x13 * x32 + coeff[18] * x12 * x33 + coeff[19] * x11 * x34;
  float dxall = 0 + dx1 + dx2 + dx3 + dx4;
  float dv_target_phi = dxall == 0 ? 0 : sqrt(+dx1 * dx1 * pow(0 + coeff[2] * x21 + coeff[4] * x41 + 3 * coeff[6] * x12 + coeff[7] * x22 + 2 * coeff[8] * x11 * x31 + coeff[10] * x32 + 3 * coeff[12] * x12 * x22 + coeff[13] * x24 + 4 * coeff[14] * x13 * x31 + 2 * coeff[15] * x11 * x22 * x31 + 3 * coeff[17] * x12 * x32 + 2 * coeff[18] * x11 * x33 + coeff[19] * x34, 2) + dx2 * dx2 * pow(0 + coeff[2] * x11 + coeff[3] * x31 + 2 * coeff[7] * x21 * x11 + 2 * coeff[9] * x21 * x31 + 2 * coeff[12] * x21 * x13 + 4 * coeff[13] * x23 * x11 + 2 * coeff[15] * x21 * x12 * x31 + 4 * coeff[16] * x23 * x31, 2) + dx3 * dx3 * pow(0 + coeff[1] + coeff[3] * x21 + coeff[5] * x41 + coeff[8] * x12 + coeff[9] * x22 + 2 * coeff[10] * x31 * x11 + 3 * coeff[11] * x32 + coeff[14] * x14 + coeff[15] * x12 * x22 + coeff[16] * x24 + 2 * coeff[17] * x31 * x13 + 3 * coeff[18] * x32 * x12 + 4 * coeff[19] * x33 * x11, 2) + dx4 * dx4 * pow(0 + coeff[4] * x11 + coeff[5] * x31, 2));
  dx[0] = dv_target_phi;
  return v_target_phi;
}
```