<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/62437>62437</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            WRONG code with -unroll-allow-loop-nests-peeling
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          JonPsson
      </td>
    </tr>
</table>

<pre>
    clang -O3 -march=arch13 wrong0.i -o a.out -w; ./a.out
3

clang -O0 -march=arch13 wrong0.i -o a.out -w; ./a.out
3

clang -O3 -march=arch13 wrong0.i -o a.out -w -fno-inline -mllvm -unroll-allow-loop-nests-peeling; ./a.out
0

[testcase.tar.gz](https://github.com/llvm/llvm-project/files/11356750/testcase.tar.gz)

```
wrong0.i:
int printf(const char *, ...);
char a, b, c;
short d;
int e, f, g, h, i;
char(j)() { return a; }
int k(int l) {
  b = 0;
  for (;; ++b) {
    int m;
    if (b) {
      h = e = c = j();
      i = d = 0;
      for (; d; d++)
        ;
      return l;
    }
    f = 0;
    for (; f; f++)
      ;
  }
}
int main() {
  g = k(3);
  printf("%d\n", g);
}
```

</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJysVMGO4ygQ_ZrypWQLF3HiHHzodJSV9rC92suesY1teghEgCea-foRJJ3E3S3NjDRW9AhU1XvPBVh4r0YjZQPVDqp9JuYwWdf8bc2_3luTtbb_1nRamBHzF475UbhuAr6PQ8nx7KwZWaEwtygKOwfMz8B3WAAd0hzYHtgTvwwXfGNjf5Tt17xhPhibK6OVkZgftf56xHw2zmqdC63tOdfWnnIjffD5SUqtzPiJA_boAKpdkD50wssiCFeM36HaA9VTCCcP_AnoAHQYVZjmtujsEegQda9DfnL2VXYB6DAoLT3QoSx5td5UDOjwnpi2C-U1u_7S9O2Fo2ZaUCbgySkTBqC6s8YH7CbhEOgJ6BmLooiEfHftZAyJGGgjdLeAn6wL2N_mkVbGlCHCGGGKoBZUQPVrpKcaaIuw2aGTYXYGRWwobPZ3si9AdRz1NfMSQWwR-B7ZjRZxsNF9HVciCe2Adu27KsTIdXyoQlRDLPuYiTglDZmwS_h6sbyoR1Qp1n9wFJ-7q9Ql7C_GbruF1-dd2bUferF8a0wi_kTuQWy4wGdiDyU3xkXPj0KZ-9685Y5JMO4HX7bgdoyACKjqoXo26W86APfMu9jybGZ9w_st34pMNuW6pk3J-KbOpqbtK8mHtixlWTIhRb9t-YaLmjiT2zXvM9UQI85WVJdbTlVdcCarnq9kS10v12UHKyaPQukiXqfCujFT3s-yWdOKbzItWql9-rwRGXnGFIzWq33mmnQF23n0sGJa-eDvLEEFLZv__3v55y_sbC_xrML0069FNjvd_PbVT6bi3U-mfwQAAP__oaeD3A">