<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/113015>113015</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            A Stack dump Error when emit CIR
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          maijun-sec
      </td>
    </tr>
</table>

<pre>
    The source code is as follows:
``` c
#include <stdio.h>
#include <malloc.h>
#include "test.h"

void StructureAlignmentMallocBadCase01()
{
    char *p = malloc(5);
    free(p);
}

void test() {
    long x = 4L;
}

void testcase_bad_01(float largeFloat) {
   float result = 5.11 - largeFloat;
}

void testcase_bad_02(double negativeDouble) {
    double result = 3.14159265358979323846 - negativeDouble;
}


int main() {
    int x;
 printf("%d\n", x);

    char c = -1;
    if (c < 0) {
 printf("c is negative\n");
    } else {
        printf("c is non-negative\n");
    }

    return 0;
}
```

The command line is as follows:
``` bash
/mnt/d/wsl/tools/LLVM-19.1.2-Linux-X64/bin/clang -S -Xclang -emit-cir -o output.cir test.c
```

The error message is as follows:
``` text
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: /mnt/d/wsl/tools/LLVM-19.1.2-Linux-X64/bin/clang -S -Xclang -emit-cir -o output.cir test.c
#0 0x0000560d9ea3eb78 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/mnt/d/wsl/tools/LLVM-19.1.2-Linux-X64/bin/clang+0x695db78)
#1 0x0000560d9ea3c00e llvm::sys::RunSignalHandlers() (/mnt/d/wsl/tools/LLVM-19.1.2-Linux-X64/bin/clang+0x695b00e)
#2 0x0000560d9e998c87 CrashRecoverySignalHandler(int) (.llvm.17117292872744395150) CrashRecoveryContext.cpp:0:0
#3 0x00007f4c0c8f0320 (/lib/x86_64-linux-gnu/libc.so.6+0x45320)
#4 0x0000560d9f8d90e0 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/mnt/d/wsl/tools/LLVM-19.1.2-Linux-X64/bin/clang+0x77f80e0)
#5 0x0000560da3a00b30
clang: error: clang frontend command failed with exit code 133 (use -v to see invocation)
clang version 19.1.2 (/home/runner/work/llvm-project/llvm-project/clang 7ba7d8e2f7b6445b60679da826210cdde29eaf8b)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /mnt/d/wsl/tools/LLVM-19.1.2-Linux-X64/bin
clang: error: unable to execute command: Segmentation fault
clang: note: diagnostic msg: Error generating preprocessed source(s).
```

I am using the release: https://github.com/llvm/llvm-project/releases/download/llvmorg-19.1.2/LLVM-19.1.2-Linux-X64.tar.xz.
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJy8V99v2zgS_mvol4EFivr94AfXiXEFskDRFId9KyhyJHNLkQZJ2e799QdKcmOn6eXudrFBYlMacuabb4YfGe696g3ihhQfSPGw4mM4WLcZuPpjNGuPYtVa-X3z5YDg7egEgrASQXngHjqrtT17km0JfSB0S0o6_4JYXrBMGaFHiUCynQ9S2eRAsse3rAPX2opfmBkL6ENyIIwtxunzZJWE5-BGEUaHW616M6AJv02uPnC54x5pSlhNWLOsqz7MAwAAceAOCNsegWQPMAMgrC7i7OxmXucQCauPt-9J9fATkohxDgZ3cbQ1PVymIPnTux4E9_i15fLrhLzTlgfQ3PW4j8PXzme7Qz_qMEUokjSF9e2K_z4gI6yWdmw1gsGeB3XCh-nxp5SWWTdxsyTN06JhZZEVdVM1GcvqvIT1a0-_QDN_KhNg4Mq8xWK0XV7qcnTKhG6ayAgrJCl2Zhru4HJXqPtyiwnsOr0rsOqAsDqadkDvA9-GEbHvr-n8iHffK6R6ANQe77HHn589WbN-39vrLByG0RmgbxB53X63S-LOFXYYuJGglXl_67bcH64bcD-YQNheErY_e03YPlirPWH7p6d__rZOmyRN2PpJmfGy_r3MCdu3sXR7obnpYf0M69-XIQ4qrIVysLZgx3AcQxKfpk0t3kGPzlkHA3rP-_fhB7yE-d2np8ft8yP4sR1UAA7t2IPDo3UBgoVDCMdpPdsTtu9VOIxtIuxA2F7r0_VrfXT2DxSRBOX9iDF3iFRelSlEeh33B2i5-BYcFxg78Ojw6KxA71Euwhlfx5XceysUDyjBjQa8cOoYkhnyc-DiG8hxOP7IjCbwydne8QG468cobxE2_M3FYRkFeqGU0qKkskGeYVvVMFGVbUm29d_9PPgU23xK5MvMRv0yyfHzV-uDQz4QVkZGlJkVLe6KP5MQYR_opWwK2VY3Ys-y9BVqQSm-hfrzaJ5Vb7j-BzdSo_NXBfqrgLWU4i0wdgesaWpRV7CLnfQZhT2h-36Hh7D6haokJpCkVZpWrGF1xao8z5oiLSbtunOysybuiEQcY0vR6e8KIVsgVF0uqKg7mjG6JKxVS9j-Updfy3ytp8x6M84GkXiblFNeeZExeptVfptVV8uGIoWZh4nmxwuKMeDODkel0X00Jyt4UDYK_s20F7sP3MQm2v51xaiqrqZ4B7u4gc0zTmmbLTRdQc0qFAfzpulcJNbIH9racaVRwlmFA-BFhfmelGZZRD16hPUpyo5HBHWTdXMTBk7ovLIG5iSWdA92QML2bjQmtsH-bN23n9Xp1ePsr2p5JWtkXdWWeV60JS2rRvKalSylQkpkDfKubn_A-BIvDSFmuZR-NN-MPZubFlhk2SGXMFiJOs4-Wq8us2kqmdYoH5T7Ezr1C_JHw-O1I1jAuZOu_EfjM_ZRHidmoeOjDq_cGBswfkvFe2N9UAIGP1kepzOmR4OOB2X6twW89oQ1yX84rj4CH2D00UE8GBxq5H4K-T8fN8vayJO0Z6Mtl8sk6_qFtV9xmATuksu_kpXcZLLJGr7CTZSKjGaUVavDpqFM5B1WZY55W7G2LtpctqKsMy5Zk4qV2jDK8pSmDU2LilZJJzteFbLtSsmbPKUkpzhwpWcpsq5fTefjJk0zmhYrzVvUfvqngjGDZ5is8YJTPKzcZsq1HXtPcqqVD_7FTVBB42YLL0fhUpzzAQ3Eowp2Hz-vRqc3__8RvqA8bdi_AwAA__-Bytfo">