user: 请从给定的汇编指令推导出C源代码：

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x14(%rbp)
  pxor   %xmm0,%xmm0
  movss  %xmm0,-0x1c(%rbp)
  pxor   %xmm0,%xmm0
  movss  %xmm0,-0x18(%rbp)
  pxor   %xmm0,%xmm0
  movss  %xmm0,-0x10(%rbp)
  lea    D120(%rip),%rax
  mov    %rax,%rsi
  lea    D3(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    -0x1c(%rbp),%rax
  mov    %rax,%rsi
  lea    D167(%rip),%rax
  mov    %rax,%rdi
  call   <scanf@plt>
  jmp    L62
L66:
  lea    D45(%rip),%rax
  mov    %rax,%rsi
  lea    D3(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    -0x18(%rbp),%rax
  mov    %rax,%rsi
  lea    D167(%rip),%rax
  mov    %rax,%rdi
  call   <scanf@plt>
  movss  -0x18(%rbp),%xmm0
  movss  -0x1c(%rbp),%xmm1
  divss  %xmm1,%xmm0
  movss  %xmm0,-0xc(%rbp)
  pxor   %xmm2,%xmm2
  cvtss2sd -0xc(%rbp),%xmm2
  movq   %xmm2,%rax
  movq   %rax,%xmm0
  lea    D23(%rip),%rax
  mov    %rax,%rsi
  lea    D6(%rip),%rax
  mov    %rax,%rdi
  mov    $0x1,%eax
  call   <printf@plt>
  movss  -0x10(%rbp),%xmm0
  addss  -0xc(%rbp),%xmm0
  movss  %xmm0,-0x10(%rbp)
  addl   $0x1,-0x14(%rbp)
  lea    D14(%rip),%rax
  mov    %rax,%rsi
  lea    D3(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    -0x1c(%rbp),%rax
  mov    %rax,%rsi
  lea    D167(%rip),%rax
  mov    %rax,%rdi
  call   <scanf@plt>
L62:
  movss  -0x1c(%rbp),%xmm0
  movss  D65(%rip),%xmm1
  ucomiss %xmm1,%xmm0
  jp     L66
  movss  D65(%rip),%xmm1
  ucomiss %xmm1,%xmm0
  jne    L66
  cmpl   $0x0,-0x14(%rbp)
  je     L0
  mov    -0x14(%rbp),%eax
  test   %rax,%rax
  js     L8
  pxor   %xmm0,%xmm0
  cvtsi2ss %rax,%xmm0
  jmp    L55
L8:
  mov    %rax,%rdx
  shr    %rdx
  and    $0x1,%eax
  or     %rax,%rdx
  pxor   %xmm0,%xmm0
  cvtsi2ss %rdx,%xmm0
  addss  %xmm0,%xmm0
L55:
  movss  -0x10(%rbp),%xmm1
  divss  %xmm0,%xmm1
  pxor   %xmm3,%xmm3
  cvtss2sd %xmm1,%xmm3
  movq   %xmm3,%rax
  movq   %rax,%xmm0
  lea    D22(%rip),%rax
  mov    %rax,%rsi
  lea    D6(%rip),%rax
  mov    %rax,%rdi
  mov    $0x1,%eax
  call   <printf@plt>
  jmp    L46
L0:
  lea    D20(%rip),%rax
  mov    %rax,%rsi
  lea    D3(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
L46:
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L48
  call   <__stack_chk_fail@plt>
L48:
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D120
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D3
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D167
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D45
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D23
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D6
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D14
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D65
type_infered: byte[4]
name: extract_symbolic_data
arguments: data_tag: D22
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D20
type_infered: string

tool: D120: Enter the gallons used (-1 to end): 

tool: D3: %s

tool: D167: %f

tool: D45: Enter the miles driven: 

tool: D23: The miles/gallon for this tank was 

tool: D6: %s %f

tool: D14: 

Enter the gallons used (-1 to end): 

tool: {"D65": [0x00,0x00,0x80,0xbf]}

tool: D22: 

The overall average miles/gallon was 

tool: D20: 

Tough Luck....

assistant: ```c
int main(void) {
  unsigned int counter = 0;
  float gallons = 0.0;
  float miles = 0.0;
  float milesPerGallon;
  float average = 0.0;
  printf("%s", "Enter the gallons used (-1 to end): ");
  scanf("%f", &gallons);
  while (gallons != -1) {
    printf("%s", "Enter the miles driven: ");
    scanf("%f", &miles);
    milesPerGallon = miles / gallons;
    printf("%s %f", "The miles/gallon for this tank was ", milesPerGallon);
    average = average + milesPerGallon;
    counter++;
    printf("%s", "\n\nEnter the gallons used (-1 to end): ");
    scanf("%f", &gallons);
  }
  if (counter != 0)
    printf("%s %f", "\n\nThe overall average miles/gallon was ", (average / counter));
  else
    printf("%s", "\n\nTough Luck....");
  return 0;
}
```