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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - -ffunction_sections not working on LLVM windows..."
href="https://bugs.llvm.org/show_bug.cgi?id=47940">47940</a>
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<th>Summary</th>
<td>-ffunction_sections not working on LLVM windows...
</td>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>11.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Common Code Generator Code
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>jeffr@radgametools.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>Even with -ffunction-sections on the command line, llvm on windows doesn't
split functions so that they can be independently stripped by the MS linker.
This is out at the OBJ level, after compiling, you can dissemble the obj, and
the functions aren't split into separate sections.
Easy to test, just add a:
void test()
{
__asm
{
nop
... 16K times or whatever
nop
}
}
And then build an exe - the exe will grow by 16K...</pre>
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