gcc/testsuite/gcc.dg/ipa/pr102513.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -Warray-bounds" } */
   3
   4 extern int block2[7][256];
   5
   6 static int encode_block(int block2[7][256], unsigned level)
   7 {
   8     int best_score = 0;
   9
  10     for (unsigned x = 0; x < level; x++) {
  11         int v = block2[1][x];
  12         block2[level][x] = 0;
  13         best_score += v * v;
  14     }
  15
  16     if (level > 0 && best_score > 64) {
  17         int score = 0;
  18
  19         score += encode_block(block2, level - 1);
  20         score += encode_block(block2, level - 1);
  21
  22         if (score < best_score) {
  23             best_score = score;
  24         }
  25     }
  26
  27     return best_score;
  28 }
  29
  30 int foo(void)
  31 {
  32     return encode_block(block2, 5);
  33 }