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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [debugify] ipsccp fail"
href="https://bugs.llvm.org/show_bug.cgi?id=37960">37960</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[debugify] ipsccp fail
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</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>enhancement
</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>greg.bedwell@sony.com
</td>
</tr>
<tr>
<th>CC</th>
<td>anastasis.gramm2@gmail.com, davide@freebsd.org, llvm-bugs@lists.llvm.org, vsk@apple.com
</td>
</tr>
<tr>
<th>Blocks</th>
<td>37953
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=20478" name="attach_20478" title="ll reproducer">attachment 20478</a> <a href="attachment.cgi?id=20478&action=edit" title="ll reproducer">[details]</a></span>
ll reproducer
Silly testcase, but raising on the basis that no input (no matter how silly)
should be causing debugify fails.
$ clang -v
clang version 7.0.0 (trunk 335708) (llvm/trunk 335721)
Target: x86_64-pc-windows-msvc
Thread model: posix
InstalledDir: e:\work\upstream-llvm\build-vs2015-native-ninja\bin
$ cat interprocedural_sparse_conditional_constant_propagation.cpp
static void foo() {}
void bar() { foo; }
$ clang interprocedural_sparse_conditional_constant_propagation.cpp -O0 -Xclang
-disable-O0-optnone -S -emit-llvm -o ipsccp-input.ll
interprocedural_sparse_conditional_constant_propagation.cpp:2:14: warning:
expression result unused [-Wunused-value]
void bar() { foo; }
^~~
1 warning generated.
$ opt ipsccp-input.ll -disable-output -debugify-each -ipsccp
ERROR: Instruction with empty DebugLoc in function ?foo@@YAXXZ -- unreachable
WARNING: Missing line 2
CheckModuleDebugify [Interprocedural Sparse Conditional Constant Propagation]:
FAIL
CheckFunctionDebugify [Module Verifier]: PASS
CheckFunctionDebugify [Module Verifier]: PASS
$</pre>
</div>
</p>
<div id="referenced">
<hr style="border: 1px dashed #969696">
<b>Referenced Bugs:</b>
<ul>
<li>
[<a class="bz_bug_link
bz_status_NEW "
title="NEW - [meta] [debugify] fix -check-debugify failures"
href="https://bugs.llvm.org/show_bug.cgi?id=37953">Bug 37953</a>] [meta] [debugify] fix -check-debugify failures
</li>
</ul>
</div>
<br>
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