https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103464

            Bug ID: 103464
           Summary: ICE on valid code at -O1 (with -ftree-vrp and ulimit
                    -s 512) on x86_64-linux-gnu: Segmentation fault
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zhendong.su at inf dot ethz.ch
  Target Milestone: ---

[519] % ulimit -s 512
[520] % gcctk -v
Using built-in specs.
COLLECT_GCC=gcctk
COLLECT_LTO_WRAPPER=/local/suz-local/software/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/12.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-trunk/configure --disable-bootstrap
--prefix=/local/suz-local/software/local/gcc-trunk --enable-languages=c,c++
--disable-werror --disable-multilib
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 12.0.0 20211129 (experimental) [master r12-4647-g3f861a5c8fd] (GCC) 
[521] % 
[521] % gcctk -O1 -ftree-vrp small.c
gcctk: internal compiler error: Segmentation fault signal terminated program
cc1
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
[522] % 
[522] % cat small.c
int a, b, c;
long d;
int main() {
  int e, f, g;
  long h, i;
  if (a)
  L1:
    goto L2;
  while (a) {
    if (c)
      goto L3;
    e = f;
    int j = g;
    if (0)
    L2:
      i = j;
    d = e;
    if (b)
    L3:
      if (a) {
        g = f = h;
        goto L1;
      }
    h = i;
  }
  return 0;
}

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