[Bug tree-optimization/112331] middle-end: Fail vectorization

[juzhe.zhong at rivai dot ai via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112331

--- Comment #2 from JuzheZhong <juzhe.zhong at rivai dot ai> ---
Reduced case:


#include <stdio.h>
#define LEN 32000
#define ntimes 200000
#define TYPE int
#define lll LEN
#define LEN2 256
#define ALIGNMENT 16
__attribute__ ((aligned(ALIGNMENT))) TYPE X[lll],Y[lll],Z[lll],U[lll],V[lll];

struct GlobalData {
  __attribute__((aligned(ALIGNMENT))) TYPE a[LEN];
  int pad1[3];
  __attribute__((aligned(ALIGNMENT))) TYPE b[LEN];
  int pad2[5];
  __attribute__((aligned(ALIGNMENT))) TYPE c[LEN];
  int pad3[7];
  __attribute__((aligned(ALIGNMENT))) TYPE d[LEN];
  int pad4[11];
  __attribute__((aligned(ALIGNMENT))) TYPE e[LEN];

  int pad5[13];
  __attribute__((aligned(ALIGNMENT))) TYPE aa[LEN2][LEN2];
  int pad6[17];
  __attribute__((aligned(ALIGNMENT))) TYPE bb[LEN2][LEN2];
  int pad7[19];
  __attribute__((aligned(ALIGNMENT))) TYPE cc[LEN2][LEN2];
  int pad8[23];
  __attribute__((aligned(ALIGNMENT))) TYPE tt[LEN2][LEN2];
} global_data;

__attribute__((aligned(ALIGNMENT))) TYPE * const a = global_data.a;
__attribute__((aligned(ALIGNMENT))) TYPE * const b = global_data.b;
__attribute__((aligned(ALIGNMENT))) TYPE * const c = global_data.c;
__attribute__((aligned(ALIGNMENT))) TYPE * const d = global_data.d;
__attribute__((aligned(ALIGNMENT))) TYPE * const e = global_data.e;
__attribute__((aligned(ALIGNMENT))) TYPE (* const aa)[LEN2] = global_data.aa;
__attribute__((aligned(ALIGNMENT))) TYPE (* const bb)[LEN2] = global_data.bb;
__attribute__((aligned(ALIGNMENT))) TYPE (* const cc)[LEN2] = global_data.cc;
__attribute__((aligned(ALIGNMENT))) TYPE (* const tt)[LEN2] = global_data.tt;

int s111()
{




        for (int nl = 0; nl < 2*ntimes; nl++) {
                for (int i = 0; i < lll; i++) {
                        X[i] = Y[i] + 1;
                }
        }
        return 0;
}

Also failed to vectorize.