user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<test_reduction>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  movl   $0x0,-0x4(%rbp)
  jmp    L327
L304:
  addl   $0x1,-0x4(%rbp)
L327:
  cmpl   $0xf,-0x4(%rbp)
  jle    L304
  movl   $0x0,-0x4(%rbp)
  jmp    L128
L103:
  addl   $0x1,-0x4(%rbp)
L128:
  cmpl   $0xf,-0x4(%rbp)
  jle    L103
  movl   $0x0,-0x4(%rbp)
  jmp    L87
L420:
  addl   $0x1,-0x4(%rbp)
L87:
  cmpl   $0xf,-0x4(%rbp)
  jle    L420
  movl   $0x0,-0x4(%rbp)
  jmp    L198
L246:
  addl   $0x1,-0x4(%rbp)
L198:
  cmpl   $0xf,-0x4(%rbp)
  jle    L246
  movl   $0x0,-0x4(%rbp)
  jmp    L186
L330:
  addl   $0x1,-0x4(%rbp)
L186:
  cmpl   $0xf,-0x4(%rbp)
  jle    L330
  movl   $0x0,-0x4(%rbp)
  jmp    L135
L64:
  addl   $0x1,-0x4(%rbp)
L135:
  cmpl   $0xf,-0x4(%rbp)
  jle    L64
  movl   $0x0,-0x4(%rbp)
  jmp    L165
L447:
  addl   $0x1,-0x4(%rbp)
L165:
  cmpl   $0xf,-0x4(%rbp)
  jle    L447
  movl   $0x0,-0x4(%rbp)
  jmp    L20
L228:
  addl   $0x1,-0x4(%rbp)
L20:
  cmpl   $0xf,-0x4(%rbp)
  jle    L228
  movl   $0x0,-0x4(%rbp)
  jmp    L262
L435:
  addl   $0x1,-0x4(%rbp)
L262:
  cmpl   $0xf,-0x4(%rbp)
  jle    L435
  movl   $0x0,-0x4(%rbp)
  jmp    L110
L176:
  addl   $0x1,-0x4(%rbp)
L110:
  cmpl   $0xf,-0x4(%rbp)
  jle    L176
  movl   $0x0,-0x4(%rbp)
  jmp    L335
L278:
  addl   $0x1,-0x4(%rbp)
L335:
  cmpl   $0xf,-0x4(%rbp)
  jle    L278
  movl   $0x0,-0x4(%rbp)
  jmp    L191
L12:
  addl   $0x1,-0x4(%rbp)
L191:
  cmpl   $0xf,-0x4(%rbp)
  jle    L12
  movl   $0x0,-0x4(%rbp)
  jmp    L281
L75:
  addl   $0x1,-0x4(%rbp)
L281:
  cmpl   $0xf,-0x4(%rbp)
  jle    L75
  movl   $0x0,-0x4(%rbp)
  jmp    L432
L322:
  addl   $0x1,-0x4(%rbp)
L432:
  cmpl   $0xf,-0x4(%rbp)
  jle    L322
  movl   $0x0,-0x4(%rbp)
  jmp    L293
L189:
  addl   $0x1,-0x4(%rbp)
L293:
  cmpl   $0xf,-0x4(%rbp)
  jle    L189
  movl   $0x0,-0x4(%rbp)
  jmp    L116
L401:
  addl   $0x1,-0x4(%rbp)
L116:
  cmpl   $0xf,-0x4(%rbp)
  jle    L401
  movl   $0x0,-0x4(%rbp)
  jmp    L391
L47:
  addl   $0x1,-0x4(%rbp)
L391:
  cmpl   $0xf,-0x4(%rbp)
  jle    L47
  movl   $0x0,-0x4(%rbp)
  jmp    L403
L66:
  addl   $0x1,-0x4(%rbp)
L403:
  cmpl   $0xf,-0x4(%rbp)
  jle    L66
  movl   $0x0,-0x4(%rbp)
  jmp    L164
L97:
  addl   $0x1,-0x4(%rbp)
L164:
  cmpl   $0xf,-0x4(%rbp)
  jle    L97
  movl   $0x0,-0x4(%rbp)
  jmp    L373
L367:
  addl   $0x1,-0x4(%rbp)
L373:
  cmpl   $0xf,-0x4(%rbp)
  jle    L367
  movl   $0x0,-0x4(%rbp)
  jmp    L136
L313:
  addl   $0x1,-0x4(%rbp)
L136:
  cmpl   $0xf,-0x4(%rbp)
  jle    L313
  movl   $0x0,-0x4(%rbp)
  jmp    L433
L143:
  addl   $0x1,-0x4(%rbp)
L433:
  cmpl   $0xf,-0x4(%rbp)
  jle    L143
  movl   $0x0,-0x4(%rbp)
  jmp    L300
L459:
  addl   $0x1,-0x4(%rbp)
L300:
  cmpl   $0xf,-0x4(%rbp)
  jle    L459
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void test_reduction() {
  int i, x, y;
#pragma omp simd reduction(
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction()
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction( : x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(,
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(+
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(+:
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(+ :)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(+ :, y)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(+ : x, + : y)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(% : x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(+ : x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(* : x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(- : x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(& : x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(| : x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(^ : x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(&& : x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(|| : x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(max : x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(min : x)
  for (i = 0; i < 16; ++i)
    ;
  struct X {
    int x;
  };
  struct X X;
#pragma omp simd reduction(+ : X.x)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp simd reduction(+ : x + x)
  for (i = 0; i < 16; ++i)
    ;
}
```