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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - armv4t TLS crash"
href="https://bugs.llvm.org/show_bug.cgi?id=49126">49126</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>armv4t TLS crash
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Macintosh
</td>
</tr>
<tr>
<th>OS</th>
<td>MacOS X
</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>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jfc@mit.edu
</td>
</tr>
<tr>
<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=24509" name="attach_24509" title="program to trigger compiler crash">attachment 24509</a> <a href="attachment.cgi?id=24509&action=edit" title="program to trigger compiler crash">[details]</a></span>
program to trigger compiler crash
Compiling the attached program with
$ clang -cc1 -triple armv4t-apple-macosx10.9.0 -S tls.c
causes a backend crash. Maybe armv4t does not support TLS? If that's the
problem clang should report a better error. I hit this problem because I added
a runtime that uses TLS and the build infrastructure decided it needed to be
built for every possible Apple ARM system. (I'm building on an M1 Mac.)
fatal error: error in backend: Cannot select: t13: ch,glue = ARMISD::CALL t11,
t10, Register:i32 $r0, RegisterMask:Untyped, t11:1
t10: i32,ch = load<(non-temporal dereferenceable invariant load 4 from got)>
t0, t9, undef:i32
t9: i32 = ARMISD::WrapperPIC TargetGlobalTLSAddress:i32<%struct.S** @tls> 0
[TF=128]
t8: i32 = TargetGlobalTLSAddress<%struct.S** @tls> 0 [TF=128]
t3: i32 = undef
t5: i32 = Register $r0
t12: Untyped = RegisterMask
t11: ch,glue = CopyToReg t10:1, Register:i32 $r0, t9
t5: i32 = Register $r0
t9: i32 = ARMISD::WrapperPIC TargetGlobalTLSAddress:i32<%struct.S** @tls> 0
[TF=128]
t8: i32 = TargetGlobalTLSAddress<%struct.S** @tls> 0 [TF=128]
In function: get</pre>
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