user: 下面的汇编指令对应的C源代码是什么:

```asm
<main>:
  endbr64
  push   %r13
  mov    $0x7,%edx
  push   %r12
  push   %rbp
  push   %rbx
  xor    %ebx,%ebx
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    0x10(%rsp),%r12
  movl   $0x4,0x10(%rsp)
  lea    0xc(%rsp),%rbp
  movl   $0x7,0x14(%rsp)
  lea    0x14(%rsp),%r13
  movl   $0x0,0xc(%rsp)
  jmp    L368
  xchg   %ax,%ax
L703:
  mov    0x14(%rsp),%edx
L368:
  lea    0x7(%rax,%rax,1),%eax
  mov    $0x2,%ecx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  cmp    %edx,%eax
  mov    %r12,%rdx
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebx
  call   <foo@plt>
  mov    0xc(%rsp),%eax
  add    $0x1,%eax
  mov    %eax,0xc(%rsp)
  cmp    $0x3f,%eax
  jle    L703
  cmp    $0x40,%eax
  jne    L211
  test   %ebx,%ebx
  je     L554
L211:
  xor    %eax,%eax
  call   <__builtin_abort@plt>
L648:
  movl   $0x4,0x10(%rsp)
  mov    $0x7,%ecx
  xor    %eax,%eax
  movl   $0x7,0x14(%rsp)
  movl   $0x0,0xc(%rsp)
  jmp    L379
  nopw   0x0(%rax,%rax,1)
L448:
  mov    0x14(%rsp),%ecx
L379:
  test   %eax,%eax
  lea    0x3(%rax),%edx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  cmovs  %edx,%eax
  mov    %r12,%rdx
  sar    $0x2,%eax
  lea    0x7(%rax,%rax,2),%eax
  cmp    %ecx,%eax
  mov    $0x3,%ecx
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebx
  call   <foo@plt>
  mov    0xc(%rsp),%eax
  add    $0x4,%eax
  mov    %eax,0xc(%rsp)
  cmp    $0x3f,%eax
  jle    L448
  test   %ebx,%ebx
  jne    L360
  cmp    $0x40,%eax
  je     L258
L360:
  xor    %eax,%eax
  call   <__builtin_abort@plt>
L477:
  movl   $0x4,0x10(%rsp)
  mov    $0x7,%edx
  xor    %eax,%eax
  movl   $0x7,0x14(%rsp)
  movl   $0x0,0xc(%rsp)
  jmp    L37
  nopl   (%rax)
L711:
  mov    0x14(%rsp),%edx
L37:
  lea    0x7(%rax,%rax,1),%eax
  mov    $0x2,%ecx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  cmp    %edx,%eax
  mov    %r12,%rdx
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebx
  call   <foo@plt>
  mov    0xc(%rsp),%eax
  add    $0x1,%eax
  mov    %eax,0xc(%rsp)
  cmp    $0x3f,%eax
  jle    L711
  test   %ebx,%ebx
  jne    L199
  cmp    $0x40,%eax
  je     L206
L199:
  xor    %eax,%eax
  call   <__builtin_abort@plt>
L752:
  movl   $0x4,0x10(%rsp)
  mov    $0x7,%ecx
  xor    %eax,%eax
  movl   $0x7,0x14(%rsp)
  movl   $0x0,0xc(%rsp)
  jmp    L838
  nopw   0x0(%rax,%rax,1)
L603:
  mov    0x14(%rsp),%ecx
L838:
  test   %eax,%eax
  lea    0x3(%rax),%edx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  cmovs  %edx,%eax
  mov    %r12,%rdx
  sar    $0x2,%eax
  lea    0x7(%rax,%rax,2),%eax
  cmp    %ecx,%eax
  mov    $0x3,%ecx
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebx
  call   <foo@plt>
  mov    0xc(%rsp),%eax
  add    $0x4,%eax
  mov    %eax,0xc(%rsp)
  cmp    $0x3f,%eax
  jle    L603
  cmp    $0x40,%eax
  jne    L821
  test   %ebx,%ebx
  je     L726
L821:
  xor    %eax,%eax
  call   <__builtin_abort@plt>
L202:
  movl   $0x7,0x14(%rsp)
  mov    $0x7,%ecx
  xor    %edx,%edx
  movl   $0x0,0xc(%rsp)
  nopl   0x0(%rax,%rax,1)
L729:
  movl   $0x0,0x10(%rsp)
  xor    %eax,%eax
  jmp    L772
  nopl   0x0(%rax)
L841:
  mov    0xc(%rsp),%edx
  mov    0x14(%rsp),%ecx
L772:
  shl    $0x4,%edx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  lea    0x7(%rdx,%rax,2),%eax
  mov    %r12,%rdx
  cmp    %ecx,%eax
  mov    $0x2,%ecx
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebx
  call   <foo@plt>
  mov    0x10(%rsp),%eax
  add    $0x1,%eax
  mov    %eax,0x10(%rsp)
  cmp    $0x7,%eax
  jle    L841
  mov    0xc(%rsp),%esi
  lea    0x1(%rsi),%edx
  mov    %edx,0xc(%rsp)
  cmp    $0x7,%edx
  jg     L223
  mov    0x14(%rsp),%ecx
  jmp    L729
  nopw   0x0(%rax,%rax,1)
L223:
  cmp    $0x8,%edx
  jne    L148
  test   %ebx,%ebx
  je     L568
L148:
  xor    %eax,%eax
  call   <__builtin_abort@plt>
L621:
  movl   $0x7,0x14(%rsp)
  mov    $0x7,%ecx
  xor    %edx,%edx
  movl   $0x0,0xc(%rsp)
  nopl   0x0(%rax,%rax,1)
L266:
  movl   $0x0,0x10(%rsp)
  xor    %eax,%eax
  jmp    L436
  nopl   0x0(%rax)
L100:
  mov    0xc(%rsp),%edx
  mov    0x14(%rsp),%ecx
L436:
  shl    $0x4,%edx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  lea    0x7(%rdx,%rax,2),%eax
  mov    %r12,%rdx
  cmp    %ecx,%eax
  mov    $0x2,%ecx
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebx
  call   <foo@plt>
  mov    0x10(%rsp),%eax
  add    $0x1,%eax
  mov    %eax,0x10(%rsp)
  cmp    $0x7,%eax
  jle    L100
  mov    0xc(%rsp),%edi
  lea    0x1(%rdi),%edx
  mov    %edx,0xc(%rsp)
  cmp    $0x7,%edx
  jg     L610
  mov    0x14(%rsp),%ecx
  jmp    L266
  nopw   0x0(%rax,%rax,1)
L610:
  test   %ebx,%ebx
  jne    L265
  cmp    $0x8,%edx
  je     L332
L265:
  xor    %eax,%eax
  call   <__builtin_abort@plt>
L120:
  movl   $0x4,0x10(%rsp)
  mov    $0x7,%edx
  xor    %eax,%eax
  movl   $0x7,0x14(%rsp)
  movl   $0x0,0xc(%rsp)
  jmp    L848
  nopl   (%rax)
L441:
  mov    0x14(%rsp),%edx
L848:
  lea    0x7(%rax,%rax,1),%eax
  mov    $0x2,%ecx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  cmp    %edx,%eax
  mov    %r12,%rdx
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebx
  call   <foo@plt>
  mov    0xc(%rsp),%eax
  add    $0x1,%eax
  mov    %eax,0xc(%rsp)
  cmp    $0x3f,%eax
  jle    L441
  cmp    $0x40,%eax
  jne    L605
  test   %ebx,%ebx
  je     L272
L605:
  xor    %eax,%eax
  call   <__builtin_abort@plt>
L618:
  movl   $0x4,0x10(%rsp)
  mov    $0x7,%ecx
  xor    %eax,%eax
  movl   $0x7,0x14(%rsp)
  movl   $0x0,0xc(%rsp)
  jmp    L830
  nopw   0x0(%rax,%rax,1)
L260:
  mov    0x14(%rsp),%ecx
L830:
  test   %eax,%eax
  lea    0x3(%rax),%edx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  cmovs  %edx,%eax
  mov    %r12,%rdx
  sar    $0x2,%eax
  lea    0x7(%rax,%rax,2),%eax
  cmp    %ecx,%eax
  mov    $0x3,%ecx
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebx
  call   <foo@plt>
  mov    0xc(%rsp),%eax
  add    $0x4,%eax
  mov    %eax,0xc(%rsp)
  cmp    $0x3f,%eax
  jle    L260
  cmp    $0x40,%eax
  jne    L519
  test   %ebx,%ebx
  je     L373
L519:
  xor    %eax,%eax
  call   <__builtin_abort@plt>
L563:
  movl   $0x4,0x10(%rsp)
  mov    $0x7,%edx
  xor    %eax,%eax
  movl   $0x7,0x14(%rsp)
  movl   $0x0,0xc(%rsp)
  jmp    L715
  nopl   (%rax)
L588:
  mov    0x14(%rsp),%edx
L715:
  lea    0x7(%rax,%rax,1),%eax
  mov    $0x2,%ecx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  cmp    %edx,%eax
  mov    %r12,%rdx
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebx
  call   <foo@plt>
  mov    0xc(%rsp),%eax
  add    $0x1,%eax
  mov    %eax,0xc(%rsp)
  cmp    $0x3f,%eax
  jle    L588
  test   %ebx,%ebx
  jne    L697
  cmp    $0x40,%eax
  je     L78
L697:
  xor    %eax,%eax
  call   <__builtin_abort@plt>
L308:
  movl   $0x4,0x10(%rsp)
  mov    $0x7,%ecx
  xor    %eax,%eax
  movl   $0x7,0x14(%rsp)
  movl   $0x0,0xc(%rsp)
  jmp    L153
  nopw   0x0(%rax,%rax,1)
L663:
  mov    0x14(%rsp),%ecx
L153:
  test   %eax,%eax
  lea    0x3(%rax),%edx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  cmovs  %edx,%eax
  mov    %r12,%rdx
  sar    $0x2,%eax
  lea    0x7(%rax,%rax,2),%eax
  cmp    %ecx,%eax
  mov    $0x3,%ecx
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebx
  call   <foo@plt>
  mov    0xc(%rsp),%eax
  add    $0x4,%eax
  mov    %eax,0xc(%rsp)
  cmp    $0x3f,%eax
  jle    L663
  cmp    $0x40,%eax
  jne    L424
  test   %ebx,%ebx
  je     L757
L424:
  xor    %eax,%eax
  call   <__builtin_abort@plt>
L134:
  movl   $0x7,0x14(%rsp)
  mov    $0x7,%ecx
  xor    %edx,%edx
  movl   $0x0,0xc(%rsp)
  nopl   0x0(%rax,%rax,1)
L103:
  movl   $0x0,0x10(%rsp)
  xor    %eax,%eax
  jmp    L32
  nopl   0x0(%rax)
L444:
  mov    0xc(%rsp),%edx
  mov    0x14(%rsp),%ecx
L32:
  shl    $0x4,%edx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  lea    0x7(%rdx,%rax,2),%eax
  mov    %r12,%rdx
  cmp    %ecx,%eax
  mov    $0x2,%ecx
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebx
  call   <foo@plt>
  mov    0x10(%rsp),%eax
  add    $0x1,%eax
  mov    %eax,0x10(%rsp)
  cmp    $0x7,%eax
  jle    L444
  mov    0xc(%rsp),%esi
  lea    0x1(%rsi),%edx
  mov    %edx,0xc(%rsp)
  cmp    $0x7,%edx
  jg     L619
  mov    0x14(%rsp),%ecx
  jmp    L103
  nopw   0x0(%rax,%rax,1)
L619:
  cmp    $0x8,%edx
  jne    L846
  test   %ebx,%ebx
  je     L699
L846:
  xor    %eax,%eax
  call   <__builtin_abort@plt>
L330:
  movl   $0x7,0x14(%rsp)
  mov    $0x7,%ecx
  xor    %edx,%edx
  movl   $0x0,0xc(%rsp)
  nopl   0x0(%rax,%rax,1)
L383:
  movl   $0x0,0x10(%rsp)
  xor    %eax,%eax
  jmp    L451
  nopl   0x0(%rax)
L710:
  mov    0xc(%rsp),%edx
  mov    0x14(%rsp),%ecx
L451:
  shl    $0x4,%edx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  lea    0x7(%rdx,%rax,2),%eax
  mov    %r12,%rdx
  cmp    %ecx,%eax
  mov    $0x2,%ecx
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebx
  call   <foo@plt>
  mov    0x10(%rsp),%eax
  add    $0x1,%eax
  mov    %eax,0x10(%rsp)
  cmp    $0x7,%eax
  jle    L710
  mov    0xc(%rsp),%edi
  lea    0x1(%rdi),%edx
  mov    %edx,0xc(%rsp)
  cmp    $0x7,%edx
  jg     L242
  mov    0x14(%rsp),%ecx
  jmp    L383
  nopw   0x0(%rax,%rax,1)
L242:
  test   %ebx,%ebx
  jne    L774
  cmp    $0x8,%edx
  je     L160
L774:
  xor    %eax,%eax
  call   <__builtin_abort@plt>
L732:
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L237
  add    $0x28,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L160:
  cmp    $0x8,%eax
  jne    L774
  cmpl   $0x87,0x14(%rsp)
  jne    L774
  jmp    L732
L699:
  cmp    $0x8,%eax
  jne    L846
  cmpl   $0x87,0x14(%rsp)
  jne    L846
  jmp    L330
L757:
  cmpl   $0x37,0x14(%rsp)
  jne    L424
  jmp    L134
L78:
  cmpl   $0x87,0x14(%rsp)
  jne    L697
  jmp    L308
L373:
  cmpl   $0x37,0x14(%rsp)
  jne    L519
  jmp    L563
L272:
  cmpl   $0x87,0x14(%rsp)
  jne    L605
  jmp    L618
L332:
  cmp    $0x8,%eax
  jne    L265
  cmpl   $0x87,0x14(%rsp)
  jne    L265
  jmp    L120
L568:
  cmp    $0x8,%eax
  jne    L148
  cmpl   $0x87,0x14(%rsp)
  jne    L148
  jmp    L621
L726:
  cmpl   $0x37,0x14(%rsp)
  jne    L821
  jmp    L202
L206:
  cmpl   $0x87,0x14(%rsp)
  jne    L199
  jmp    L752
L258:
  cmpl   $0x37,0x14(%rsp)
  jne    L360
  jmp    L477
L554:
  cmpl   $0x87,0x14(%rsp)
  jne    L211
  jmp    L648
L237:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int main() {
  int i, j, b, c = 0;
  i = 4;
  j = 4;
  b = 7;
#pragma omp simd linear(b : 2) reduction(+ : c)
  for (i = 0; i < 64; i++) {
    c = c + (b != 7 + 2 * i);
    foo(&b, &i, &j, 2);
  }
  if (c || i != 64 || b != 7 + 64 * 2)
    __builtin_abort();
  i = 4;
  j = 4;
  b = 7;
#pragma omp simd linear(b : 3) reduction(+ : c)
  for (i = 0; i < 64; i += 4) {
    c = c + (b != 7 + i / 4 * 3);
    foo(&b, &i, &j, 3);
  }
  if (c || i != 64 || b != 7 + 16 * 3)
    __builtin_abort();
  i = 4;
  j = 4;
  b = 7;
#pragma omp simd linear(i) linear(b : 2) reduction(+ : c)
  for (i = 0; i < 64; i++) {
    c = c + (b != 7 + 2 * i);
    foo(&b, &i, &j, 2);
  }
  if (c || i != 64 || b != 7 + 64 * 2)
    __builtin_abort();
  i = 4;
  j = 4;
  b = 7;
#pragma omp simd linear(i : 4) linear(b : 3) reduction(+ : c)
  for (i = 0; i < 64; i += 4) {
    c = c + (b != 7 + i / 4 * 3);
    foo(&b, &i, &j, 3);
  }
  if (c || i != 64 || b != 7 + 16 * 3)
    __builtin_abort();
  i = 4;
  j = 4;
  b = 7;
#pragma omp simd collapse(2) linear(b : 2) reduction(+ : c)
  for (i = 0; i < 8; i++)
    for (j = 0; j < 8; j++) {
      c = c + (b != 7 + 2 * j + 2 * 8 * i);
      foo(&b, &i, &j, 2);
    }
  if (c || i != 8 || j != 8 || b != 7 + 64 * 2)
    __builtin_abort();
  i = 4;
  j = 4;
  b = 7;
#pragma omp simd collapse(2) lastprivate(i, j) linear(b : 2) reduction(+ : c)
  for (i = 0; i < 8; i++)
    for (j = 0; j < 8; j++) {
      c = c + (b != 7 + 2 * j + 2 * 8 * i);
      foo(&b, &i, &j, 2);
    }
  if (c || i != 8 || j != 8 || b != 7 + 64 * 2)
    __builtin_abort();
  i = 4;
  j = 4;
  b = 7;
#pragma omp parallel for simd schedule(static, 4) linear(b : 2) reduction(+ : c)
  for (i = 0; i < 64; i++) {
    c = c + (b != 7 + 2 * i);
    foo(&b, &i, &j, 2);
  }
  if (c || i != 64 || b != 7 + 64 * 2)
    __builtin_abort();
  i = 4;
  j = 4;
  b = 7;
#pragma omp parallel for simd schedule(static, 4) linear(b : 3) reduction(+ : c)
  for (i = 0; i < 64; i += 4) {
    c = c + (b != 7 + i / 4 * 3);
    foo(&b, &i, &j, 3);
  }
  if (c || i != 64 || b != 7 + 16 * 3)
    __builtin_abort();
  i = 4;
  j = 4;
  b = 7;
#pragma omp parallel for simd schedule(static, 4) linear(i) linear(b : 2) reduction(+ : c)
  for (i = 0; i < 64; i++) {
    c = c + (b != 7 + 2 * i);
    foo(&b, &i, &j, 2);
  }
  if (c || i != 64 || b != 7 + 64 * 2)
    __builtin_abort();
  i = 4;
  j = 4;
  b = 7;
#pragma omp parallel for simd schedule(static, 4) linear(i : 4) linear(b : 3) reduction(+ : c)
  for (i = 0; i < 64; i += 4) {
    c = c + (b != 7 + i / 4 * 3);
    foo(&b, &i, &j, 3);
  }
  if (c || i != 64 || b != 7 + 16 * 3)
    __builtin_abort();
  i = 4;
  j = 4;
  b = 7;
#pragma omp parallel for simd lastprivate(i, j) collapse(2) schedule(static, 4) linear(b : 2) reduction(+ : c)
  for (i = 0; i < 8; i++)
    for (j = 0; j < 8; j++) {
      c = c + (b != 7 + 2 * j + 2 * 8 * i);
      foo(&b, &i, &j, 2);
    }
  if (c || i != 8 || j != 8 || b != 7 + 64 * 2)
    __builtin_abort();
  i = 4;
  j = 4;
  b = 7;
#pragma omp parallel for simd collapse(2) schedule(static, 4) linear(b : 2) reduction(+ : c)
  for (i = 0; i < 8; i++)
    for (j = 0; j < 8; j++) {
      c = c + (b != 7 + 2 * j + 2 * 8 * i);
      foo(&b, &i, &j, 2);
    }
  if (c || i != 8 || j != 8 || b != 7 + 64 * 2)
    __builtin_abort();
  return 0;
}
```