[Bug ipa/103267] New: Wrong code with ipa-sra

[hubicka at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103267

            Bug ID: 103267
           Summary: Wrong code with ipa-sra
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hubicka at gcc dot gnu.org
                CC: marxin at gcc dot gnu.org
  Target Milestone: ---

The following testcase in C should be valid expectd to loop infinitely while
with IPA SRA we ICE.



static int
__attribute__ ((noinline,const))
infinite (int p)
{
  if (p)
    while (1);
  return p;
}
__attribute__ ((noinline))
static void
test(int p, int *a)
{
  int v = infinite (p);
  if (*a && v)
    __builtin_abort ();
}
test2(int *a)
{
  test(0,a);
}
main()
{
  test (1,0);
}