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<head>
<base href="https://bugs.llvm.org/">
</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 - opt crashes with "-mem2reg -jump-threading -lcssa -indvars": Assertion `!L || L->contains(LI->getLoopFor(InsertPt->getParent()))' failed"
href="https://bugs.llvm.org/show_bug.cgi?id=37179">37179</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>opt crashes with "-mem2reg -jump-threading -lcssa -indvars": Assertion `!L || L->contains(LI->getLoopFor(InsertPt->getParent()))' failed
</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>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Scalar Optimizations
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</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>Tested with trunk revision 330237.
$ clangpolly -v
clang version 7.0.0 (<a href="http://llvm.org/git/clang.git">http://llvm.org/git/clang.git</a>
1c97f39bbba707ad1cdcef18ee2fc3aee318c45a) (llvm/trunk 330237)
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 -mem2reg -jump-threading -lcssa -indvars -o small-opt.bc small.bc
optpolly:
/home/su/software/tmp/polly/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp:253:
llvm::Instruction* getInsertPointForUses(llvm::Instruction*, llvm::Value*,
llvm::DominatorTree*, llvm::LoopInfo*): Assertion `!L ||
L->contains(LI->getLoopFor(InsertPt->getParent()))' failed.
Stack dump:
0. Program arguments: optpolly -mem2reg -jump-threading -lcssa -indvars -o
small-opt.bc small.bc
1. Running pass 'Function Pass Manager' on module 'small.bc'.
2. Running pass 'Loop Pass Manager' on function '@main'
3. Running pass 'Induction Variable Simplification' on basic block
'%while.cond1'
LLVMSymbolizer: error reading file: No such file or directory
#0 0x000000000215760a (optpolly+0x215760a)
#1 0x00000000021557be (optpolly+0x21557be)
#2 0x0000000002155920 (optpolly+0x2155920)
#3 0x00007f1f57e83330 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
#4 0x00007f1f56c6bc37 gsignal
/build/eglibc-SvCtMH/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56:0
#5 0x00007f1f56c6f028 abort
/build/eglibc-SvCtMH/eglibc-2.19/stdlib/abort.c:91:0
#6 0x00007f1f56c64bf6 __assert_fail_base
/build/eglibc-SvCtMH/eglibc-2.19/assert/assert.c:92:0
#7 0x00007f1f56c64ca2 (/lib/x86_64-linux-gnu/libc.so.6+0x2fca2)
#8 0x0000000001f756c7 (optpolly+0x1f756c7)
#9 0x0000000001f78629 (optpolly+0x1f78629)
#10 0x0000000001f7b76b (optpolly+0x1f7b76b)
#11 0x0000000001f7d093 (optpolly+0x1f7d093)
#12 0x0000000001f7f421 (optpolly+0x1f7f421)
#13 0x0000000001727e2b (optpolly+0x1727e2b)
#14 0x0000000001c46b3b (optpolly+0x1c46b3b)
#15 0x0000000001c46bec (optpolly+0x1c46bec)
#16 0x0000000001c4784a (optpolly+0x1c4784a)
#17 0x00000000008d7713 (optpolly+0x8d7713)
#18 0x00007f1f56c56f45 __libc_start_main
/build/eglibc-SvCtMH/eglibc-2.19/csu/libc-start.c:321:0
#19 0x000000000094ea86 (optpolly+0x94ea86)
Aborted (core dumped)
$
-----------------------------
int a[1], b, c, d;
int main ()
{
if (c)
{
int e = 0, f = 1;
while (1)
{
while (e)
a[e++] = 1;
if (f)
break;
while (d++)
while (b)
;
}
}
return 0;
}</pre>
</div>
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