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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - polly crashes with "opt -jump-threading -gvn -polly-dependences": running pass 'Polly - Detect static control parts (SCoPs)'"
href="https://bugs.llvm.org/show_bug.cgi?id=34433">34433</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>polly crashes with "opt -jump-threading -gvn -polly-dependences": running pass 'Polly - Detect static control parts (SCoPs)'
</td>
</tr>
<tr>
<th>Product</th>
<td>Polly
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</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>Optimizer
</td>
</tr>
<tr>
<th>Assignee</th>
<td>polly-dev@googlegroups.com
</td>
</tr>
<tr>
<th>Reporter</th>
<td>su@cs.ucdavis.edu
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>$ clangpolly -v
clang version 6.0.0 (<a href="http://llvm.org/git/clang.git">http://llvm.org/git/clang.git</a>
48231c128c697271508e83b487d436a071e62f09) (<a href="http://llvm.org/git/llvm.git">http://llvm.org/git/llvm.git</a>
aedd47f9e210dc3ce82a1f885043d7d005b52dd7)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/su/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9.4
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/5.3.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.4.7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.6.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.3.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.2.0
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$
$ clangpolly -O3 -mllvm -disable-llvm-optzns -c -emit-llvm -o small.bc small.c
$ optpolly -jump-threading -gvn -polly-dependences -o small-opt.bc small.bc
#0 0x00000000038af852 (optpolly+0x38af852)
#1 0x00000000038af8e3 (optpolly+0x38af8e3)
#2 0x00000000038adcf8 (optpolly+0x38adcf8)
#3 0x00000000038af1d5 (optpolly+0x38af1d5)
#4 0x00007fdfe4683330 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
#5 0x0000000003110a18 (optpolly+0x3110a18)
#6 0x0000000003ca492d (optpolly+0x3ca492d)
#7 0x0000000003bef5c2 (optpolly+0x3bef5c2)
#8 0x0000000003bf11fd (optpolly+0x3bf11fd)
#9 0x0000000003bf1ce2 (optpolly+0x3bf1ce2)
#10 0x0000000003bf09a4 (optpolly+0x3bf09a4)
#11 0x0000000003bf0aa6 (optpolly+0x3bf0aa6)
#12 0x0000000003bebb4b (optpolly+0x3bebb4b)
#13 0x0000000003bf2ac5 (optpolly+0x3bf2ac5)
#14 0x0000000003193724 (optpolly+0x3193724)
#15 0x00000000031938b7 (optpolly+0x31938b7)
#16 0x0000000003193c52 (optpolly+0x3193c52)
#17 0x00000000031943a9 (optpolly+0x31943a9)
#18 0x00000000031945e9 (optpolly+0x31945e9)
#19 0x00000000017fe118 (optpolly+0x17fe118)
#20 0x00007fdfe3456f45 __libc_start_main
/build/eglibc-SvCtMH/eglibc-2.19/csu/libc-start.c:321:0
#21 0x00000000017d7a29 (optpolly+0x17d7a29)
Stack dump:
0. Program arguments: optpolly -jump-threading -gvn -polly-dependences -o
small-opt.bc small.bc
1. Running pass 'Function Pass Manager' on module 'small.bc'.
2. Running pass 'Polly - Detect static control parts (SCoPs)' on function
'@foo'
Segmentation fault (core dumped)
$
-----------------------------------
int a, b, c, d;
unsigned short e;
void foo ()
{
while (c)
for (d = 0; d < 0; d = e)
while (b)
while (a)
;
}
int main ()
{
foo ();
return 0;
}</pre>
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