[llvm-bugs] [Bug 40431] New: opt crashes with "opt -licm -instcombine -gvn -correlated-propagation -loop-deletion -adce"

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=40431

            Bug ID: 40431
           Summary: opt crashes with "opt -licm -instcombine -gvn
                    -correlated-propagation -loop-deletion -adce"
           Product: libraries
           Version: 6.0
          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 21372
  --> https://bugs.llvm.org/attachment.cgi?id=21372&action=edit
.bc file of the source code

$ clang -v
clang version 6.0.0 (tags/RELEASE_600/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir:
/home/jack-zhou/clang+llvm-6.0.0-x86_64-linux-gnu-ubuntu-16.04/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

$clang -O3 -c -emit-llvm  -mllvm -disable-llvm-optzns small.c -o small.bc
-I'path of csmith's runtime'
$ opt -licm -instcombine -gvn -correlated-propagation -loop-deletion -adce 
small.bc -o small-opt.bc
LLVMSymbolizer: error reading file: No such file or directory
#0 0x0000000001a68794 (opt+0x1a68794)
#1 0x0000000001a68a76 (opt+0x1a68a76)
#2 0x00007fabb7def890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
#3 0x000000000185b5d1 (opt+0x185b5d1)
#4 0x0000000001859bd6 (opt+0x1859bd6)
#5 0x000000000185c840 (opt+0x185c840)
#6 0x00000000016021eb (opt+0x16021eb)
#7 0x0000000001602453 (opt+0x1602453)
#8 0x0000000001602858 (opt+0x1602858)
#9 0x000000000075b292 (opt+0x75b292)
#10 0x00007fabb6cc2b97 __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x21b97)
#11 0x000000000074c1b9 (opt+0x74c1b9)
Stack dump:
0.      Program arguments: opt -licm -instcombine -gvn -correlated-propagation
-loop-deletion -adce small.bc -o small-opt.bc 
1.      Running pass 'Function Pass Manager' on module 'small.bc'.
2.      Running pass 'Aggressive Dead Code Elimination' on function '@e'
Segmentation fault (core dumped)

The following is the source code of small.c, which is generated by csmith and
reduced by creduce.
#include "csmith.h"
a, b, c;
*d;
e() {
  uint32_t f;
  int32_t g = 3;
  int32_t h;
  uint32_t i;
  int16_t j[9];
  for (;;) {
    uint32_t k[] = {f, b, 0, c, b, b, 0, f, f, b, c, c, 0};
    if (j > i)
      ;
    else {
      if (g)
        break;
      for (; a;) {
        int32_t l;
        if ((h = *d) | l)
          ;
        else
          break;
      }
    }
  }
}

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