<html>
    <head>
      <base href="https://llvm.org/bugs/" />
    </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 --- - [msvc] not tailcalling in this-adjustment thunk"
   href="https://llvm.org/bugs/show_bug.cgi?id=26306">26306</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[msvc] not tailcalling in this-adjustment thunk
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </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>C++
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>hans@chromium.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>dgregor@apple.com, llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Blocks</th>
          <td>26299
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>From Chromium: [thunk]:public: virtual void __thiscall
ash::WorkspaceBackdropDelegate::OnWindowStackingChanged`adjustor{8}' (class
aura::Window *)

MSVC generates:

00000000: 83 E9 08           sub         ecx,8
00000003: E9 00 00 00 00     jmp        
?OnWindowStackingChanged@WorkspaceBackdropDelegate@ash@@UAEXPAVWindow@aura@@@Z

Clang generates:

00000000: 55                 push        ebp
00000001: 89 E5              mov         ebp,esp
00000003: 83 C1 F8           add         ecx,0FFFFFFF8h
00000006: E8 00 00 00 00     call       
?RestackBackdrop@WorkspaceBackdropDelegate@ash@@AAEXXZ
0000000B: 5D                 pop         ebp
0000000C: C2 04 00           ret         4</pre>
        </div>
      </p>
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