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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Regression on ARM"
href="https://llvm.org/bugs/show_bug.cgi?id=29201">29201</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Regression on ARM
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</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>Backend: ARM
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>llvmbugzilla@limegreensocks.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=17070" name="attach_17070" title="Ugly but small C sample for "out of range" regression">attachment 17070</a> <a href="attachment.cgi?id=17070&action=edit" title="Ugly but small C sample for "out of range" regression">[details]</a></span>
Ugly but small C sample for "out of range" regression
This checkin:
Revision: 6e45500a57ff3b4a49ef72dbdd85c0d4003375df
Author: Prakhar Bahuguna <<a href="mailto:prakhar.bahuguna@arm.com">prakhar.bahuguna@arm.com</a>>
Date: 8/16/2016 3:41:52 AM
Message:
[Thumb] Validate branch target for CBZ/CBNZ instructions.
has apparently caused a regression. After applying (just) this change, this
compile command:
/llvm.trunkb/bin/clang.exe -target armv7-windows-gnu -c -o dmisc2.o dmisc2.c
gives this message:
fatal error: error in backend: out of range pc-relative fixup value
Attached is an (ugly but small) example that is giving me the error. If I
compile this C code to assembly (-S) then compile the assembly, I see:
dmisc2.s:40:2: error: out of range pc-relative fixup value
cbz r0, .LBB0_7</pre>
</div>
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