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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - CoroFrame inserts spills non-determinstically"
href="https://bugs.llvm.org/show_bug.cgi?id=32569">32569</a>
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<tr>
<th>Summary</th>
<td>CoroFrame inserts spills non-determinstically
</td>
</tr>
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<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Transformation Utilities
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>rnk@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>The easy way to observe this is to extract the command from
test/Transforms/Coroutines/coro-spill-after-phi.ll and run it a few times with
-debug-only coro-frame until you observe the different ordering:
$ "C:/src/llvm-project/build/./bin\opt.EXE" "-coro-split" "-S" <
'C:\src\llvm-project\llvm\test\Transforms\Coroutines\coro-spill-after-phi.ll'
-debug-only coro-frame |& grep -A4 Spills
------------- Spills--------------
%phi2 = phi i32 [ %.begin3, %begin.from.entry ], [ %.begin1, %begin.from.alt
]
user: %2 = call i32 @print(i32 %phi2)
%phi1 = phi i32 [ %.begin2, %begin.from.entry ], [ %.begin, %begin.from.alt ]
user: %1 = call i32 @print(i32 %phi1)
$ "C:/src/llvm-project/build/./bin\opt.EXE" "-coro-split" "-S" <
'C:\src\llvm-project\llvm\test\Transforms\Coroutines\coro-spill-after-phi.ll'
-debug-only coro-frame |& grep -A4 Spills
------------- Spills--------------
%phi1 = phi i32 [ %.begin2, %begin.from.entry ], [ %.begin, %begin.from.alt ]
user: %1 = call i32 @print(i32 %phi1)
%phi2 = phi i32 [ %.begin3, %begin.from.entry ], [ %.begin1, %begin.from.alt
]
user: %2 = call i32 @print(i32 %phi2)</pre>
</div>
</p>
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