[Bug tree-optimization/125502] New: [11-17 Regression] ICE at -O1 during RTL pass: expand

[xxs_chy at outlook dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125502

            Bug ID: 125502
           Summary: [11-17 Regression] ICE at -O1 during RTL pass: expand
           Product: gcc
           Version: 17.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: xxs_chy at outlook dot com
  Target Milestone: ---

Reproducer: https://godbolt.org/z/c55heEfaY
gcc version 17.0.0 20260528 (experimental) (GCC)
Similar to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125396.

Testcase:
#include <setjmp.h>
#include <stdint.h>
typedef int16_t v16i16 __attribute__((vector_size(32)));
jmp_buf g32;
void f3(int64_t, int8_t, int16_t);
int64_t f4(int64_t, int64_t)
{
    v16i16 vec6, vec11;
    int16_t v13;
    vec6[0] = setjmp(g32);
    vec11 = vec6;
    f3(0, 0, v13);
    v13 = vec11[2];
    f4(0, 0);
}