<html>
<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 "opt -ipsccp -inline -sroa -early-cse-memssa -loop-rotate -licm -loop-vectorize -instcombine": Assertion `OrigLoop->isLoopInvariant(LCSSAPhi.getIncomingValue(0)) && "Incoming value isn't loop invariant"' failed"
href="https://bugs.llvm.org/show_bug.cgi?id=36945">36945</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>opt crashes with "opt -ipsccp -inline -sroa -early-cse-memssa -loop-rotate -licm -loop-vectorize -instcombine": Assertion `OrigLoop->isLoopInvariant(LCSSAPhi.getIncomingValue(0)) && "Incoming value isn't loop invariant"' 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>$ clangpolly -v
clang version 7.0.0 (<a href="http://llvm.org/git/clang.git">http://llvm.org/git/clang.git</a>
9a41408814f37f4f864fb3e57aa01919b4d871d8) (llvm/trunk 328613)
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 -ipsccp -inline -sroa -early-cse-memssa -loop-rotate -licm
-loop-vectorize -instcombine -o small-opt.bc small.bc
optpolly:
/home/su/software/tmp/polly/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:4335:
void llvm::InnerLoopVectorizer::fixLCSSAPHIs(): Assertion
`OrigLoop->isLoopInvariant(LCSSAPhi.getIncomingValue(0)) && "Incoming value
isn't loop invariant"' failed.
LLVMSymbolizer: error reading file: No such file or directory
#0 0x00000000021003ba (optpolly+0x21003ba)
#1 0x00000000020fe56e (optpolly+0x20fe56e)
#2 0x00000000020fe6d0 (optpolly+0x20fe6d0)
#3 0x00007f17ec689330 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
#4 0x00007f17eb471c37 gsignal
/build/eglibc-SvCtMH/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56:0
#5 0x00007f17eb475028 abort
/build/eglibc-SvCtMH/eglibc-2.19/stdlib/abort.c:91:0
#6 0x00007f17eb46abf6 __assert_fail_base
/build/eglibc-SvCtMH/eglibc-2.19/assert/assert.c:92:0
#7 0x00007f17eb46aca2 (/lib/x86_64-linux-gnu/libc.so.6+0x2fca2)
#8 0x0000000002211e44 (optpolly+0x2211e44)
#9 0x000000000222e2d0 (optpolly+0x222e2d0)
#10 0x000000000222e985 (optpolly+0x222e985)
#11 0x0000000002239018 (optpolly+0x2239018)
#12 0x0000000002239a3f (optpolly+0x2239a3f)
#13 0x000000000223a0f6 (optpolly+0x223a0f6)
#14 0x0000000001be949b (optpolly+0x1be949b)
#15 0x000000000163e8c6 (optpolly+0x163e8c6)
#16 0x0000000001bea1aa (optpolly+0x1bea1aa)
#17 0x00000000008cf016 (optpolly+0x8cf016)
#18 0x00007f17eb45cf45 __libc_start_main
/build/eglibc-SvCtMH/eglibc-2.19/csu/libc-start.c:321:0
#19 0x0000000000944716 (optpolly+0x944716)
Stack dump:
0. Program arguments: optpolly -ipsccp -inline -sroa -early-cse-memssa
-loop-rotate -licm -loop-vectorize -instcombine -o small-opt.bc small.bc
1. Running pass 'CallGraph Pass Manager' on module 'small.bc'.
2. Running pass 'Loop Vectorization' on function '@f'
Aborted (core dumped)
$
---------------------------------
int a, b;
static void c (int *d, int *e)
{
for (a = 0; a < 21; a++)
*e = *d;
if (b)
;
}
void f ()
{
int *g = &a;
c (g, &b);
}
int main ()
{
f ();
return 0;
}</pre>
</div>
</p>
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