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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 - [PowerPC]verification error after If-converter"
href="https://bugs.llvm.org/show_bug.cgi?id=36411">36411</a>
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</tr>
<tr>
<th>Summary</th>
<td>[PowerPC]verification error after If-converter
</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>
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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>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Backend: PowerPC
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>junbuml@codeaurora.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>While working on some experiment patch, observed an error from
-verify-machineinstrs in PPC after If-Converter. It should be easily
reproducible : llc -verify-machineinstrs < test.ll
target datalayout =
"E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
define i32 @test(i32 %v, i32* %S) nounwind {
entry:
br i1 undef, label %Exit, label %Header
Header:
%call = call i32 @f1()
switch i32 %call, label %BB0[
i32 -5, label %BB0
i32 -16, label %BB0
i32 -25, label %Exit.loopexit
]
BB0:
br i1 false, label %Exit, label %Header
Exit.loopexit:
br label %Exit
Exit:
%p = phi i32[0, %entry], [1, %BB0], [2, %Exit.loopexit]
ret i32 %p
}
declare i32 @f1() nounwind</pre>
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