<html>
<head>
<base href="http://llvm.org/bugs/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - AArch64: crash in performSelectCombine()"
href="http://llvm.org/bugs/show_bug.cgi?id=20775">20775</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>AArch64: crash in performSelectCombine()
</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>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>Backend: AArch64
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>grosbach@apple.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>This optimization doesn't like v1i1 types.
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "arm64-apple-ios5.0.0"
define void @autogen_SD18027(i32) {
BB:
%Cmp = icmp sge i32 121709, %0
br label %CF80
CF80: ; preds = %CF80, %BB
br i1 undef, label %CF80, label %CF83
CF83: ; preds = %CF83, %CF80
%Sl70 = select i1 %Cmp, <1 x i1> undef, <1 x i1> zeroinitializer
%E73 = extractelement <1 x i1> %Sl70, i32 0
%brmerge = or i1 %E73, undef
br i1 %brmerge, label %CF83, label %CF81
CF81: ; preds = %CF83
ret void
}
$ llc test.ll
Assertion failed: (NumElements > 0 && "#Elements of a VectorType must be
greater than 0"), function get, file
/Users/grosbaj/sources/llvm/lib/IR/Type.cpp, line 710.
Found via llvm-stress.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>