<table border="1" cellspacing="0" cellpadding="8">

    <tr>

        <th>Issue</th>

        <td>

            <a href=https://github.com/llvm/llvm-project/issues/115986>115986</a>

        </td>

    </tr>

    <tr>

        <th>Summary</th>

        <td>

            [Bug]clang performed incorrect inline optimization

        </td>

    </tr>

    <tr>

      <th>Labels</th>

      <td>

            clang

      </td>

    </tr>

    <tr>

      <th>Assignees</th>

      <td>

      </td>

    </tr>

    <tr>

      <th>Reporter</th>

      <td>

          park671

      </td>

    </tr>

</table>

<pre>

    ### clang version:

Apple clang version 15.0.0 (clang-1500.1.0.2.5)

Target: arm64-apple-darwin23.1.0

Thread model: posix

### Issue Summary: 

After enabling optimization, Clang consistently generates incorrect inline-optimized code, leading to a crash in the compiled output (jumping to a null address).

### Reproduction Steps:

Compile the dalvik-darwin code and run it; the issue is 100% reproducible. However, if a line of arbitrary log output code is added, the compiled result works as expected, and the bug disappears, as shown in the image:

![image](https://github.com/user-attachments/assets/1b3189be-0417-454d-8d4f-1f2ca5d8d487)

source code: https://github.com/park671/dalvik-darwin

### Preliminary Disassembly Results:

The prepareCpe method, without the added "log" line, is incorrectly inlined by Clang, ultimately leading to a jump to a null address.

![image](https://github.com/user-attachments/assets/33a554be-748a-452d-9d97-5810a2f80ded)

![image](https://github.com/user-attachments/assets/56a4dfe4-8b6e-4856-bc7e-b087a6257166)

</pre>

<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJysVMuO3DgM_Br1hbAhye-DD_PAYPe2SPIDtEXbysiWIckz6f36heROZwcJcgrQ6G5IRbJYRRG91_NG1LPqkVXPFzzCYl2_o3utG3EZrLr2TBbnB0aD2wxv5Ly2GyseGH9m_OFh3w19vANR5TznwGSbzjNRcZ6LnOcyr5jszsAv6GYKrHgAdGtdZhgTZQrdu95kEeE33OIIFaxWkYno3Xr97by6fd8Z_u39QfD5WFd014i9UZwCOaANB6O3Gewe9Kr_xRDbkE_wlLiPdvPaB9qCucJMGzkM5EFvo3WOxgB6M3qj7BZNCkarKMYbQhXzBgsIo0O_gN4gLASjXXdtSIE9wn6EKMjXY93v4O0wBlApR94z2eW_7uoT7c6qY4x84XOg3d_FfzoLpGIKzZt-vQmYyAFuCtyxgQ6seEwgnRTSHgTnTFbgbrn1YCiHv-w7vZGLTekJEGLDYCdAN-jg0F3B2Pl7M6mC9pE_qRjyoWNH_jAB3q179YAe6NtOYziBkVYED8cMSnvcd0Ln040Hv9j37buAesWZ7t0yKVj1eJ5Vz0y2SwinGPKFyZdZh-UY8tGuTL4cnlyGIeC4rLQFz-QLek_pjxgK0XYDZbwUTVZWpcpaVU6ZmOSIlWpV2Tb3MfX2cCOdZhcP8JuSt2fD5MsHK35t6j-OjF71FkV91j5yWwdzhU9Jtx8Of1kIdkc7OnraCVYKi00ivuuw2CMkmZIFwKQ0dmZSJt-Sif-bX3O9TbCC4XrOfIQcJugVA5nrxzmOc_rzkOZ_1oiiwKoqB8qassWsrKTKOtU1WdUKjnJqeZqs7s8WrWos1URl1g41ZWVb1dkwNpQNvG2wllUj6vpe9KL6QnVFhxfqRVOIshGyaS5LX5d1y0VXdF1JnA8opkYMCtUwqbpSI150L7kshRAFL0VZNHnLi3EcOjV1fJKtGFjJaUVtcmPe1ty6-ZIeZy9E1bX1xeBAxqfNLOV42iXjknZ9DMiGY_as5Eb74H-kCDqYtM4fj5lVz-da3slN1q2kftpmH3bh5XCm_42oscjtJ9ud_UpjYPIlkU6v6uT91sv_AgAA__8ujwW0">