[llvm-bugs] [Bug 41104] New: opt crashes with "opt -licm -gvn -loop-rotate -jump-threading -gvn-sink"

via llvm-bugs llvm-bugs at lists.llvm.org
Sat Mar 16 21:42:18 PDT 2019 

https://bugs.llvm.org/show_bug.cgi?id=41104

            Bug ID: 41104
           Summary: opt crashes with "opt -licm -gvn -loop-rotate
                    -jump-threading -gvn-sink"
           Product: libraries
           Version: 7.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: cszide at 163.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 21615
  --> https://bugs.llvm.org/attachment.cgi?id=21615&action=edit
.bc file of the source code

$clang -v
clang version 7.0.1 (tags/RELEASE_701/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir:
/home/jack-zhou/clang+llvm-7.0.1-x86_64-linux-gnu-ubuntu-18.04/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

$opt -version
LLVM (http://llvm.org/):
  LLVM version 7.0.1
  Optimized build.
  Default target: x86_64-unknown-linux-gnu
  Host CPU: skylake

$clang -O3 -c -emit-llvm  -mllvm -disable-llvm-optzns small.c  -o small.bc

$opt -licm -gvn -loop-rotate -jump-threading -gvn-sink small.bc -o small-opt.bc
Stack dump:
0.      Program arguments: opt -licm -gvn -loop-rotate -jump-threading
-gvn-sink small.bc -o small-opt.bc 
1.      Running pass 'Function Pass Manager' on module 'small.bc'.
2.      Running pass 'Early GVN sinking of Expressions' on function '@e'
LLVMSymbolizer: error reading file: No such file or directory
#0 0x0000000001bf8154 (opt+0x1bf8154)
#1 0x0000000001bf617e (opt+0x1bf617e)
#2 0x0000000001bf8312 (opt+0x1bf8312)
#3 0x00007efedb3b7890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
#4 0x0000000001a2cd07 (opt+0x1a2cd07)
#5 0x0000000001a2d7ee (opt+0x1a2d7ee)
#6 0x0000000001a2cdbc (opt+0x1a2cdbc)
#7 0x0000000001a2d15f (opt+0x1a2d15f)
#8 0x0000000001a2d15f (opt+0x1a2d15f)
#9 0x0000000001a2d15f (opt+0x1a2d15f)
#10 0x0000000001a2d15f (opt+0x1a2d15f)
#11 0x0000000001a2d15f (opt+0x1a2d15f)
#12 0x0000000001a2d15f (opt+0x1a2d15f)
#13 0x0000000001a2d15f (opt+0x1a2d15f)
#14 0x0000000001a2d15f (opt+0x1a2d15f)
#15 0x0000000001a2d15f (opt+0x1a2d15f)
#16 0x0000000001a2d15f (opt+0x1a2d15f)
#17 0x0000000001a2d15f (opt+0x1a2d15f)
#18 0x0000000001a2d15f (opt+0x1a2d15f)
#19 0x0000000001a2d15f (opt+0x1a2d15f)
#20 0x0000000001a2d15f (opt+0x1a2d15f)
#21 0x0000000001a2d15f (opt+0x1a2d15f)
#22 0x0000000001a2d15f (opt+0x1a2d15f)
#23 0x0000000001a2d15f (opt+0x1a2d15f)
#24 0x0000000001a2d15f (opt+0x1a2d15f)
#25 0x0000000001a2d15f (opt+0x1a2d15f)
#26 0x0000000001a2d15f (opt+0x1a2d15f)
#27 0x0000000001a2d15f (opt+0x1a2d15f)
#28 0x0000000001a2d15f (opt+0x1a2d15f)
#29 0x0000000001a2d15f (opt+0x1a2d15f)
#30 0x0000000001a2d15f (opt+0x1a2d15f)
#31 0x0000000001a2d15f (opt+0x1a2d15f)
#32 0x0000000001a2d15f (opt+0x1a2d15f)
#33 0x0000000001a2d15f (opt+0x1a2d15f)
#34 0x0000000001a2d15f (opt+0x1a2d15f)
#35 0x0000000001a2d15f (opt+0x1a2d15f)
#36 0x0000000001a2d15f (opt+0x1a2d15f)
#37 0x0000000001a2d15f (opt+0x1a2d15f)
#38 0x0000000001a2d15f (opt+0x1a2d15f)
#39 0x0000000001a2d15f (opt+0x1a2d15f)
#40 0x0000000001a2d15f (opt+0x1a2d15f)
#41 0x0000000001a2d15f (opt+0x1a2d15f)
#42 0x0000000001a2d15f (opt+0x1a2d15f)
#43 0x0000000001a2d15f (opt+0x1a2d15f)
#44 0x0000000001a2d15f (opt+0x1a2d15f)
#45 0x0000000001a2d15f (opt+0x1a2d15f)
#46 0x0000000001a2d15f (opt+0x1a2d15f)
#47 0x0000000001a2d15f (opt+0x1a2d15f)
#48 0x0000000001a2d15f (opt+0x1a2d15f)
#49 0x0000000001a2d15f (opt+0x1a2d15f)
#50 0x0000000001a2d15f (opt+0x1a2d15f)
#51 0x0000000001a2d15f (opt+0x1a2d15f)
#52 0x0000000001a2d15f (opt+0x1a2d15f)
#53 0x0000000001a2d15f (opt+0x1a2d15f)
#54 0x0000000001a2d15f (opt+0x1a2d15f)
#55 0x0000000001a2d15f (opt+0x1a2d15f)
#56 0x0000000001a2d15f (opt+0x1a2d15f)
#57 0x0000000001a2d15f (opt+0x1a2d15f)
#58 0x0000000001a2d15f (opt+0x1a2d15f)
#59 0x0000000001a2d15f (opt+0x1a2d15f)
#60 0x0000000001a2d15f (opt+0x1a2d15f)
#61 0x0000000001a2d15f (opt+0x1a2d15f)
#62 0x0000000001a2d15f (opt+0x1a2d15f)
#63 0x0000000001a2d15f (opt+0x1a2d15f)
#64 0x0000000001a2d15f (opt+0x1a2d15f)
#65 0x0000000001a2d15f (opt+0x1a2d15f)
#66 0x0000000001a2d15f (opt+0x1a2d15f)
#67 0x0000000001a2d15f (opt+0x1a2d15f)
#68 0x0000000001a2d15f (opt+0x1a2d15f)
#69 0x0000000001a2d15f (opt+0x1a2d15f)
#70 0x0000000001a2d15f (opt+0x1a2d15f)
#71 0x0000000001a2d15f (opt+0x1a2d15f)
#72 0x0000000001a2d15f (opt+0x1a2d15f)
#73 0x0000000001a2d15f (opt+0x1a2d15f)
#74 0x0000000001a2d15f (opt+0x1a2d15f)
#75 0x0000000001a2d15f (opt+0x1a2d15f)
#76 0x0000000001a2d15f (opt+0x1a2d15f)
#77 0x0000000001a2d15f (opt+0x1a2d15f)
#78 0x0000000001a2d15f (opt+0x1a2d15f)
#79 0x0000000001a2d15f (opt+0x1a2d15f)
#80 0x0000000001a2d15f (opt+0x1a2d15f)
#81 0x0000000001a2d15f (opt+0x1a2d15f)
#82 0x0000000001a2d15f (opt+0x1a2d15f)
#83 0x0000000001a2d15f (opt+0x1a2d15f)
#84 0x0000000001a2d15f (opt+0x1a2d15f)
#85 0x0000000001a2d15f (opt+0x1a2d15f)
#86 0x0000000001a2d15f (opt+0x1a2d15f)
#87 0x0000000001a2d15f (opt+0x1a2d15f)
#88 0x0000000001a2d15f (opt+0x1a2d15f)
#89 0x0000000001a2d15f (opt+0x1a2d15f)
#90 0x0000000001a2d15f (opt+0x1a2d15f)
#91 0x0000000001a2d15f (opt+0x1a2d15f)
#92 0x0000000001a2d15f (opt+0x1a2d15f)
#93 0x0000000001a2d15f (opt+0x1a2d15f)
#94 0x0000000001a2d15f (opt+0x1a2d15f)
#95 0x0000000001a2d15f (opt+0x1a2d15f)
#96 0x0000000001a2d15f (opt+0x1a2d15f)
#97 0x0000000001a2d15f (opt+0x1a2d15f)
#98 0x0000000001a2d15f (opt+0x1a2d15f)
#99 0x0000000001a2d15f (opt+0x1a2d15f)
#100 0x0000000001a2d15f (opt+0x1a2d15f)
#101 0x0000000001a2d15f (opt+0x1a2d15f)
#102 0x0000000001a2d15f (opt+0x1a2d15f)
#103 0x0000000001a2d15f (opt+0x1a2d15f)
#104 0x0000000001a2d15f (opt+0x1a2d15f)
#105 0x0000000001a2d15f (opt+0x1a2d15f)
#106 0x0000000001a2d15f (opt+0x1a2d15f)
#107 0x0000000001a2d15f (opt+0x1a2d15f)
#108 0x0000000001a2d15f (opt+0x1a2d15f)
#109 0x0000000001a2d15f (opt+0x1a2d15f)
#110 0x0000000001a2d15f (opt+0x1a2d15f)
#111 0x0000000001a2d15f (opt+0x1a2d15f)
#112 0x0000000001a2d15f (opt+0x1a2d15f)
#113 0x0000000001a2d15f (opt+0x1a2d15f)
#114 0x0000000001a2d15f (opt+0x1a2d15f)
#115 0x0000000001a2d15f (opt+0x1a2d15f)
#116 0x0000000001a2d15f (opt+0x1a2d15f)
#117 0x0000000001a2d15f (opt+0x1a2d15f)
#118 0x0000000001a2d15f (opt+0x1a2d15f)
#119 0x0000000001a2d15f (opt+0x1a2d15f)
#120 0x0000000001a2d15f (opt+0x1a2d15f)
#121 0x0000000001a2d15f (opt+0x1a2d15f)
#122 0x0000000001a2d15f (opt+0x1a2d15f)
#123 0x0000000001a2d15f (opt+0x1a2d15f)
#124 0x0000000001a2d15f (opt+0x1a2d15f)
#125 0x0000000001a2d15f (opt+0x1a2d15f)
#126 0x0000000001a2d15f (opt+0x1a2d15f)
#127 0x0000000001a2d15f (opt+0x1a2d15f)
#128 0x0000000001a2d15f (opt+0x1a2d15f)
#129 0x0000000001a2d15f (opt+0x1a2d15f)
#130 0x0000000001a2d15f (opt+0x1a2d15f)
#131 0x0000000001a2d15f (opt+0x1a2d15f)
#132 0x0000000001a2d15f (opt+0x1a2d15f)
#133 0x0000000001a2d15f (opt+0x1a2d15f)
#134 0x0000000001a2d15f (opt+0x1a2d15f)
#135 0x0000000001a2d15f (opt+0x1a2d15f)
#136 0x0000000001a2d15f (opt+0x1a2d15f)
#137 0x0000000001a2d15f (opt+0x1a2d15f)
#138 0x0000000001a2d15f (opt+0x1a2d15f)
#139 0x0000000001a2d15f (opt+0x1a2d15f)
#140 0x0000000001a2d15f (opt+0x1a2d15f)
#141 0x0000000001a2d15f (opt+0x1a2d15f)
#142 0x0000000001a2d15f (opt+0x1a2d15f)
#143 0x0000000001a2d15f (opt+0x1a2d15f)
#144 0x0000000001a2d15f (opt+0x1a2d15f)
#145 0x0000000001a2d15f (opt+0x1a2d15f)
#146 0x0000000001a2d15f (opt+0x1a2d15f)
#147 0x0000000001a2d15f (opt+0x1a2d15f)
#148 0x0000000001a2d15f (opt+0x1a2d15f)
#149 0x0000000001a2d15f (opt+0x1a2d15f)
#150 0x0000000001a2d15f (opt+0x1a2d15f)
#151 0x0000000001a2d15f (opt+0x1a2d15f)
#152 0x0000000001a2d15f (opt+0x1a2d15f)
#153 0x0000000001a2d15f (opt+0x1a2d15f)
#154 0x0000000001a2d15f (opt+0x1a2d15f)
#155 0x0000000001a2d15f (opt+0x1a2d15f)
#156 0x0000000001a2d15f (opt+0x1a2d15f)
#157 0x0000000001a2d15f (opt+0x1a2d15f)
#158 0x0000000001a2d15f (opt+0x1a2d15f)
#159 0x0000000001a2d15f (opt+0x1a2d15f)
#160 0x0000000001a2d15f (opt+0x1a2d15f)
#161 0x0000000001a2d15f (opt+0x1a2d15f)
#162 0x0000000001a2d15f (opt+0x1a2d15f)
#163 0x0000000001a2d15f (opt+0x1a2d15f)
#164 0x0000000001a2d15f (opt+0x1a2d15f)
#165 0x0000000001a2d15f (opt+0x1a2d15f)
#166 0x0000000001a2d15f (opt+0x1a2d15f)
#167 0x0000000001a2d15f (opt+0x1a2d15f)
#168 0x0000000001a2d15f (opt+0x1a2d15f)
#169 0x0000000001a2d15f (opt+0x1a2d15f)
#170 0x0000000001a2d15f (opt+0x1a2d15f)
#171 0x0000000001a2d15f (opt+0x1a2d15f)
#172 0x0000000001a2d15f (opt+0x1a2d15f)
#173 0x0000000001a2d15f (opt+0x1a2d15f)
#174 0x0000000001a2d15f (opt+0x1a2d15f)
#175 0x0000000001a2d15f (opt+0x1a2d15f)
#176 0x0000000001a2d15f (opt+0x1a2d15f)
#177 0x0000000001a2d15f (opt+0x1a2d15f)
#178 0x0000000001a2d15f (opt+0x1a2d15f)
#179 0x0000000001a2d15f (opt+0x1a2d15f)
#180 0x0000000001a2d15f (opt+0x1a2d15f)
#181 0x0000000001a2d15f (opt+0x1a2d15f)
#182 0x0000000001a2d15f (opt+0x1a2d15f)
#183 0x0000000001a2d15f (opt+0x1a2d15f)
#184 0x0000000001a2d15f (opt+0x1a2d15f)
#185 0x0000000001a2d15f (opt+0x1a2d15f)
#186 0x0000000001a2d15f (opt+0x1a2d15f)
#187 0x0000000001a2d15f (opt+0x1a2d15f)
#188 0x0000000001a2d15f (opt+0x1a2d15f)
#189 0x0000000001a2d15f (opt+0x1a2d15f)
#190 0x0000000001a2d15f (opt+0x1a2d15f)
#191 0x0000000001a2d15f (opt+0x1a2d15f)
#192 0x0000000001a2d15f (opt+0x1a2d15f)
#193 0x0000000001a2d15f (opt+0x1a2d15f)
#194 0x0000000001a2d15f (opt+0x1a2d15f)
#195 0x0000000001a2d15f (opt+0x1a2d15f)
#196 0x0000000001a2d15f (opt+0x1a2d15f)
#197 0x0000000001a2d15f (opt+0x1a2d15f)
#198 0x0000000001a2d15f (opt+0x1a2d15f)
#199 0x0000000001a2d15f (opt+0x1a2d15f)
#200 0x0000000001a2d15f (opt+0x1a2d15f)
#201 0x0000000001a2d15f (opt+0x1a2d15f)
#202 0x0000000001a2d15f (opt+0x1a2d15f)
#203 0x0000000001a2d15f (opt+0x1a2d15f)
#204 0x0000000001a2d15f (opt+0x1a2d15f)
#205 0x0000000001a2d15f (opt+0x1a2d15f)
#206 0x0000000001a2d15f (opt+0x1a2d15f)
#207 0x0000000001a2d15f (opt+0x1a2d15f)
#208 0x0000000001a2d15f (opt+0x1a2d15f)
#209 0x0000000001a2d15f (opt+0x1a2d15f)
#210 0x0000000001a2d15f (opt+0x1a2d15f)
#211 0x0000000001a2d15f (opt+0x1a2d15f)
#212 0x0000000001a2d15f (opt+0x1a2d15f)
#213 0x0000000001a2d15f (opt+0x1a2d15f)
#214 0x0000000001a2d15f (opt+0x1a2d15f)
#215 0x0000000001a2d15f (opt+0x1a2d15f)
#216 0x0000000001a2d15f (opt+0x1a2d15f)
#217 0x0000000001a2d15f (opt+0x1a2d15f)
#218 0x0000000001a2d15f (opt+0x1a2d15f)
#219 0x0000000001a2d15f (opt+0x1a2d15f)
#220 0x0000000001a2d15f (opt+0x1a2d15f)
#221 0x0000000001a2d15f (opt+0x1a2d15f)
#222 0x0000000001a2d15f (opt+0x1a2d15f)
#223 0x0000000001a2d15f (opt+0x1a2d15f)
#224 0x0000000001a2d15f (opt+0x1a2d15f)
#225 0x0000000001a2d15f (opt+0x1a2d15f)
#226 0x0000000001a2d15f (opt+0x1a2d15f)
#227 0x0000000001a2d15f (opt+0x1a2d15f)
#228 0x0000000001a2d15f (opt+0x1a2d15f)
#229 0x0000000001a2d15f (opt+0x1a2d15f)
#230 0x0000000001a2d15f (opt+0x1a2d15f)
#231 0x0000000001a2d15f (opt+0x1a2d15f)
#232 0x0000000001a2d15f (opt+0x1a2d15f)
#233 0x0000000001a2d15f (opt+0x1a2d15f)
#234 0x0000000001a2d15f (opt+0x1a2d15f)
#235 0x0000000001a2d15f (opt+0x1a2d15f)
#236 0x0000000001a2d15f (opt+0x1a2d15f)
#237 0x0000000001a2d15f (opt+0x1a2d15f)
#238 0x0000000001a2d15f (opt+0x1a2d15f)
#239 0x0000000001a2d15f (opt+0x1a2d15f)
#240 0x0000000001a2d15f (opt+0x1a2d15f)
#241 0x0000000001a2d15f (opt+0x1a2d15f)
#242 0x0000000001a2d15f (opt+0x1a2d15f)
#243 0x0000000001a2d15f (opt+0x1a2d15f)
#244 0x0000000001a2d15f (opt+0x1a2d15f)
#245 0x0000000001a2d15f (opt+0x1a2d15f)
#246 0x0000000001a2d15f (opt+0x1a2d15f)
#247 0x0000000001a2d15f (opt+0x1a2d15f)
#248 0x0000000001a2d15f (opt+0x1a2d15f)
#249 0x0000000001a2d15f (opt+0x1a2d15f)
#250 0x0000000001a2d15f (opt+0x1a2d15f)
#251 0x0000000001a2d15f (opt+0x1a2d15f)
#252 0x0000000001a2d15f (opt+0x1a2d15f)
#253 0x0000000001a2d15f (opt+0x1a2d15f)
#254 0x0000000001a2d15f (opt+0x1a2d15f)
#255 0x0000000001a2d15f (opt+0x1a2d15f)
Segmentation fault (core dumped)

godbolt shows that this bug exists in llvm 7/trunk versions, the following is
the output

Stack dump:

0.      Program arguments: /opt/compiler-explorer/clang-trunk/bin/opt -o
/tmp/compiler-explorer-compiler119217-62-p4xyzd.bigin/output.s -S -licm -gvn
-loop-rotate -jump-threading -gvn-sink <source> 

1.      Running pass 'Function Pass Manager' on module '<source>'.

2.      Running pass 'Early GVN sinking of Expressions' on function '@e'

  #0 0x000055acb7e806fa llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x219d6fa)

  #1 0x000055acb7e7e6d4 llvm::sys::RunSignalHandlers()
(/opt/compiler-explorer/clang-trunk/bin/opt+0x219b6d4)

  #2 0x000055acb7e7e812 SignalHandler(int)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x219b812)

  #3 0x00007f2550cd9890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)

  #4 0x000055acb7c2e59e (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b59e)

  #5 0x000055acb7c2e3c6 (anonymous
namespace)::ValueTable::createExpr(llvm::Instruction*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b3c6)

  #6 0x000055acb7c2e7db (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b7db)

  #7 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

  #8 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

  #9 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

 #10 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

 #11 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

 #12 0x000055acb7c2e87b (anonymous
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(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#139 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#140 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#141 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#142 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#143 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#144 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#145 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#146 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#147 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#148 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#149 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#150 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#151 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#152 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#153 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#154 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#155 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#156 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#157 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#158 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#159 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#160 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#161 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#162 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#163 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#164 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#165 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#166 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#167 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#168 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#169 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#170 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#171 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#172 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#173 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#174 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#175 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#176 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#177 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#178 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#179 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#180 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#181 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#182 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#183 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#184 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#185 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#186 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#187 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#188 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#189 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#190 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#191 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#192 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#193 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#194 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#195 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#196 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#197 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#198 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#199 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#200 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#201 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#202 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#203 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#204 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#205 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#206 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#207 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#208 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#209 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#210 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#211 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#212 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#213 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#214 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#215 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#216 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#217 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#218 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#219 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#220 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#221 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#222 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#223 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#224 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#225 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#226 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#227 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#228 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#229 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#230 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#231 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#232 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#233 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#234 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#235 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#236 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#237 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#238 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#239 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#240 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#241 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#242 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#243 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#244 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#245 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#246 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#247 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#248 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#249 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#250 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#251 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#252 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#253 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#254 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

#255 0x000055acb7c2e87b (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*)
(/opt/compiler-explorer/clang-trunk/bin/opt+0x1f4b87b)

/compiler-explorer/c-preload/compiler-wrapper: line 21: 26770 Segmentation
fault      (core dumped) "$@"

Compiler returned: 139

-----------------------------------------------
struct a {
  int b
};
struct {
  struct a c
} d;
e() {
  for (d.c.b = 24; d.c.b < 9; d.c.b = f(d)) {
    int g;
    for (; g; g++)
      ;
  }
}

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