user: 下面的汇编指令对应的C源代码是什么:

```asm
<test_simdlen>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  movl   $0x0,-0x4(%rbp)
  jmp    L70
L250:
  addl   $0x1,-0x4(%rbp)
L70:
  cmpl   $0xf,-0x4(%rbp)
  jle    L250
  movl   $0x0,-0x4(%rbp)
  jmp    L23
L276:
  addl   $0x1,-0x4(%rbp)
L23:
  cmpl   $0xf,-0x4(%rbp)
  jle    L276
  movl   $0x0,-0x4(%rbp)
  jmp    L272
L321:
  addl   $0x1,-0x4(%rbp)
L272:
  cmpl   $0xf,-0x4(%rbp)
  jle    L321
  movl   $0x0,-0x4(%rbp)
  jmp    L309
L342:
  addl   $0x1,-0x4(%rbp)
L309:
  cmpl   $0xf,-0x4(%rbp)
  jle    L342
  movl   $0x0,-0x4(%rbp)
  jmp    L161
L50:
  addl   $0x1,-0x4(%rbp)
L161:
  cmpl   $0xf,-0x4(%rbp)
  jle    L50
  movl   $0x0,-0x4(%rbp)
  jmp    L204
L210:
  addl   $0x1,-0x4(%rbp)
L204:
  cmpl   $0xf,-0x4(%rbp)
  jle    L210
  movl   $0x0,-0x4(%rbp)
  jmp    L340
L46:
  addl   $0x1,-0x4(%rbp)
L340:
  cmpl   $0xf,-0x4(%rbp)
  jle    L46
  movl   $0x0,-0x4(%rbp)
  jmp    L200
L339:
  addl   $0x1,-0x4(%rbp)
L200:
  cmpl   $0xf,-0x4(%rbp)
  jle    L339
  movl   $0x0,-0x4(%rbp)
  jmp    L158
L373:
  addl   $0x1,-0x4(%rbp)
L158:
  cmpl   $0xf,-0x4(%rbp)
  jle    L373
  movl   $0x0,-0x4(%rbp)
  jmp    L128
L74:
  addl   $0x1,-0x4(%rbp)
L128:
  cmpl   $0xf,-0x4(%rbp)
  jle    L74
  movl   $0x0,-0x4(%rbp)
  jmp    L156
L209:
  addl   $0x1,-0x4(%rbp)
L156:
  cmpl   $0xf,-0x4(%rbp)
  jle    L209
  movl   $0x0,-0x4(%rbp)
  jmp    L334
L147:
  addl   $0x1,-0x4(%rbp)
L334:
  cmpl   $0xf,-0x4(%rbp)
  jle    L147
  movl   $0x0,-0x4(%rbp)
  jmp    L374
L21:
  addl   $0x1,-0x4(%rbp)
L374:
  cmpl   $0xf,-0x4(%rbp)
  jle    L21
  movl   $0x0,-0x4(%rbp)
  jmp    L25
L176:
  addl   $0x1,-0x4(%rbp)
L25:
  cmpl   $0xf,-0x4(%rbp)
  jle    L176
  movl   $0x0,-0x4(%rbp)
  jmp    L129
L85:
  addl   $0x1,-0x4(%rbp)
L129:
  cmpl   $0xf,-0x4(%rbp)
  jle    L85
  movl   $0x0,-0x4(%rbp)
  jmp    L255
L328:
  addl   $0x1,-0x4(%rbp)
L255:
  cmpl   $0xf,-0x4(%rbp)
  jle    L328
  movl   $0x0,-0x4(%rbp)
  jmp    L121
L83:
  addl   $0x1,-0x4(%rbp)
L121:
  cmpl   $0xf,-0x4(%rbp)
  jle    L83
  movl   $0x0,-0x4(%rbp)
  jmp    L364
L233:
  addl   $0x1,-0x4(%rbp)
L364:
  cmpl   $0xf,-0x4(%rbp)
  jle    L233
  movl   $0x0,-0x4(%rbp)
  jmp    L73
L18:
  addl   $0x1,-0x4(%rbp)
L73:
  cmpl   $0xf,-0x4(%rbp)
  jle    L18
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void test_simdlen() {
  int i;
#pragma omp for simd simdlen
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen()
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(,
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(, )
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen 4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(4
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(4,
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(4, )
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(4 4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(4, , 4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(4, 8)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(2.5)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(foo())
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(-5)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(0)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp for simd simdlen(5 - 5)
  for (i = 0; i < 16; ++i)
    ;
}
```