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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 - opt crashes with "opt -gvn-hoist -early-cse-memssa" for any input"
href="https://bugs.llvm.org/show_bug.cgi?id=40898">40898</a>
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<th>Summary</th>
<td>opt crashes with "opt -gvn-hoist -early-cse-memssa" for any input
</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>Linux
</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>cszide@163.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=21526" name="attach_21526" title=".bc file of the source code">attachment 21526</a> <a href="attachment.cgi?id=21526&action=edit" title=".bc file of the source code">[details]</a></span>
.bc file of the source code
opt crashes with "opt -gvn-hoist -early-cse-memssa" for any input, even for the
"hello world" program:
#include<stdio.h>
int main()
{
printf("hello world!");
return 0;
}
$clang -v
clang version 9.0.0 (trunk 354742)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/jack-zhou/Documents/llvm/llvm_truck/llvm/build/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.3.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.3.0
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$clang -O3 -c -emit-llvm -mllvm -disable-llvm-optzns hello.c -o hello.bc
$opt -gvn-hoist -early-cse-memssa hello.bc -o hello-opt.bc
opt:
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/lib/IR/LegacyPassManager.cpp:620:
void llvm::PMTopLevelManager::setLastUser(llvm::ArrayRef<llvm::Pass*>,
llvm::Pass*): Assertion `AnalysisPass && "Expected analysis pass to exist."'
failed.
Stack dump:
0. Program arguments:
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/build2/bin/opt -gvn-hoist
-early-cse-memssa hello.bc
#0 0x00005627e8d39b7b llvm::sys::PrintStackTrace(llvm::raw_ostream&)
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/lib/Support/Unix/Signals.inc:494:0
#1 0x00005627e8d39c0e PrintStackTraceSignalHandler(void*)
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/lib/Support/Unix/Signals.inc:558:0
#2 0x00005627e8d37b92 llvm::sys::RunSignalHandlers()
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/lib/Support/Signals.cpp:68:0
#3 0x00005627e8d3959d SignalHandler(int)
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/lib/Support/Unix/Signals.inc:357:0
#4 0x00007fd240313890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
#5 0x00007fd23efc5e97 gsignal
/build/glibc-OTsEL5/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
#6 0x00007fd23efc7801 abort /build/glibc-OTsEL5/glibc-2.27/stdlib/abort.c:81:0
#7 0x00007fd23efb739a __assert_fail_base
/build/glibc-OTsEL5/glibc-2.27/assert/assert.c:89:0
#8 0x00007fd23efb7412 (/lib/x86_64-linux-gnu/libc.so.6+0x30412)
#9 0x00005627e84b53ea
llvm::PMTopLevelManager::setLastUser(llvm::ArrayRef<llvm::Pass*>, llvm::Pass*)
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/lib/IR/LegacyPassManager.cpp:621:0
#10 0x00005627e84b7e07 llvm::PMDataManager::add(llvm::Pass*, bool)
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/lib/IR/LegacyPassManager.cpp:1116:0
#11 0x00005627e84bb785 llvm::FunctionPass::assignPassManager(llvm::PMStack&,
llvm::PassManagerType)
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/lib/IR/LegacyPassManager.cpp:1993:0
#12 0x00005627e84b62f3 llvm::PMTopLevelManager::schedulePass(llvm::Pass*)
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/lib/IR/LegacyPassManager.cpp:795:0
#13 0x00005627e84bec9a llvm::legacy::PassManagerImpl::add(llvm::Pass*)
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/lib/IR/LegacyPassManager.cpp:551:0
#14 0x00005627e84bb19b llvm::legacy::PassManager::add(llvm::Pass*)
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/lib/IR/LegacyPassManager.cpp:1882:0
#15 0x00005627e671edfd OptCustomPassManager::add(llvm::Pass*)
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/tools/opt/opt.cpp:302:0
#16 0x00005627e671588e addPass(llvm::legacy::PassManagerBase&, llvm::Pass*)
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/tools/opt/opt.cpp:337:0
#17 0x00005627e6717794 main
/home/jack-zhou/Documents/llvm/llvm_truck/llvm/tools/opt/opt.cpp:760:0
#18 0x00007fd23efa8b97 __libc_start_main
/build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:344:0
#19 0x00005627e66d9cba _start
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm/build2/bin/opt+0x1808cba)
Aborted (core dumped)</pre>
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