gcc/testsuite/gcc.dg/pr64935-1.c

   1 /* PR rtl-optimization/64935 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-std=gnu89 -Wno-shift-count-overflow -O2 -fcompare-debug" } */
   4 /* { dg-xfail-if "" { powerpc-ibm-aix* } } */
   5
   6 int a[] = {}, b[] = {}, c[] = {}, d[] = {}, e[] = {}, f[] = {}, h[] = {};
   7 int g[] = { 0 };
   8 int i, l, s, w, x, y, z, t2, t3, t5;
   9 unsigned long j, m, o, t4;
  10 long k, n, p, q, r, t, u, v, t1;
  11 fn1 ()
  12 {
  13   int t6;
  14   for (; i; i++)
  15     {
  16       t5 = a[q] ^ b[p >> 1] ^ c[o >> 1 & 1] ^ d[n >> 1 & 1] ^ e[m >> 1 & 1]
  17            ^ f[l >> 1 & 1] ^ g[0] ^ h[j & 1];
  18       t4 = a[j] ^ b[q >> 1] ^ c[p] ^ d[o] ^ e[n] ^ f[m] ^ g[l >> 8] ^ h[k];
  19       t3 = a[k >> 1] ^ b[j & 5] ^ d[p >> 32] ^ e[o >> 4] ^ f[n >> 6]
  20            ^ g[m >> 8] ^ h[l];
  21       t2 = a[l >> 6] ^ b[k & 1] ^ c[j >> 1] ^ d[q >> 32] ^ e[p >> 4]
  22            ^ f[o >> 6] ^ g[n >> 8] ^ h[m & 1];
  23       t1 = a[m >> 6] ^ b[l & 1] ^ c[k & 15] ^ d[j >> 2] ^ e[q >> 4] ^ f[p >> 6]
  24            ^ g[o >> 8] ^ h[n & 1];
  25       z = a[n >> 56] ^ b[m & 15] ^ c[l & 15] ^ d[k >> 2] ^ e[j >> 4]
  26           ^ f[q >> 6] ^ g[p >> 8] ^ h[o & 1];
  27       y = a[o >> 56] ^ b[n & 15] ^ c[m >> 40] ^ d[l >> 2] ^ e[k >> 4]
  28           ^ f[j >> 6] ^ g[q >> 8] ^ h[p & 1];
  29       x = a[p >> 56] ^ b[o & 15] ^ c[n >> 40] ^ d[m >> 2] ^ e[l >> 4]
  30           ^ f[k >> 6] ^ g[j >> 8] ^ h[q & 1];
  31       q = j = t4;
  32       k = t3;
  33       l = t2;
  34       m = t1;
  35       n = z;
  36       o = y;
  37       p = a[t6] ^ b[0] ^ c[w] ^ d[v] ^ e[u] ^ f[t] ^ g[s] ^ h[r];
  38       t4 = a[r >> 1] ^ b[t6 & 1] ^ d[w >> 1] ^ e[v >> 1] ^ f[u >> 1]
  39            ^ g[t >> 1] ^ h[s];
  40       t3 = a[s >> 6] ^ b[r & 1] ^ c[t6 & 5] ^ d[0] ^ e[w >> 4] ^ f[v >> 6]
  41            ^ g[u >> 8] ^ h[t & 1];
  42       t2 = a[t >> 6] ^ b[s] ^ c[r & 15] ^ d[t6 >> 1] ^ e[0] ^ f[w >> 6]
  43            ^ g[v >> 8] ^ h[u & 1];
  44       t1 = a[u >> 6] ^ b[t & 15] ^ c[s & 5] ^ d[r >> 32] ^ e[t6 >> 4]
  45            ^ g[w >> 8] ^ h[v & 1];
  46       z = a[v >> 56] ^ b[u >> 48 & 1] ^ c[t >> 40 & 1] ^ d[s] ^ e[r >> 1 & 1]
  47           ^ f[t6 >> 1 & 1] ^ g[0] ^ h[w & 1] ^ z;
  48       t6 = t5;
  49       r = t4;
  50       s = 0;
  51       t = u = t1;
  52       v = z;
  53       w = y;
  54     }
  55 }