<html>
    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Using --relocatable with mismatching function signatures crashes"
   href="https://bugs.llvm.org/show_bug.cgi?id=45645">45645</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Using --relocatable with mismatching function signatures crashes
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>lld
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>wasm
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>aheejin@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org, oeysymontt@gmail.com, sbc@chromium.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>When function return types mismatch between its definition and declaration, if
we pass '--relocatable' to wasm-ld, it crashes. If we don't use '--relocatable'
it only prints warnings but runs successfully.

- Test cases:

main.c:

int test(int);

int main() {
  test(1);
  return 0;
}

test.c:

void test (int n) {
}


- Commands to reproduce:
emcc -c test.c (You can use clang too)
emcc -c main.c
wasm-ld --relocatable test.o main.o -o t.so


- Error message:
wasm-ld: ../lld/wasm/Symbols.cpp:144: uint32_t
lld::wasm::Symbol::getOutputSymbolIndex() const: Assertion `outputSymbolIndex
!= INVALID_INDEX' failed</pre>
        </div>
      </p>


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