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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Emitting PLD for stack data on ARM Thumb2"
href="http://llvm.org/bugs/show_bug.cgi?id=17372">17372</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Emitting PLD for stack data on ARM Thumb2
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</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>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>weimingz@codeaurora.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=11281" name="attach_11281" title="test case">attachment 11281</a> <a href="attachment.cgi?id=11281&action=edit" title="test case">[details]</a></span>
test case
Currently, LLVM does not handle t2PLDi12, t2PLDi8 and
t2PLDs, so an opcode of 0 is returned, which causes compiler crash in
debug build or missing PLD in release build.
For example, for the given test case:
./Debug+Asserts/bin/llc -march=thumb -mattr=+v7 <
/prj/llvm-arm/home/weimingz/llvm-src/community-tip/prefetch.ll
llc:
/local/scratch/llvm-build/community-tip/lib/Target/ARM/InstPrinter/../ARMGenAsmWriter.inc:6119:
void llvm::ARMInstPrinter::printInstruction(const llvm::MCInst*,
llvm::raw_ostream&): Assertion `Bits != 0 && "Cannot print this instruction."'
failed.
0 llc 0x00000000011d2177 llvm::sys::PrintStackTrace(_IO_FILE*) +
38
1 llc 0x00000000011d23f4
2 llc 0x00000000011d1e2a
3 libpthread.so.0 0x00007f393a3088f0
4 libc.so.6 0x00007f39391aca75 gsignal + 53
5 libc.so.6 0x00007f39391b05c0 abort + 384
6 libc.so.6 0x00007f39391a5941 __assert_fail + 241</pre>
</div>
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