gcc/testsuite/gcc.dg/pr112374-2.c

   1 /* PR tree-optimization/112374 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-fcompare-debug -gno-statement-frontiers -O2" } */
   4 /* { dg-additional-options "-march=skylake-avx512" { target i?86-*-* x86_64-*-* } } */
   5 /* { dg-additional-options "-march=armv9-a" { target aarch64*-*-* } } */
   6
   7 void foo (int, int);
   8 struct S { char s[64]; } *p;
   9 char a, b;
  10 unsigned char c;
  11 int d, e;
  12
  13 void
  14 bar (void)
  15 {
  16   unsigned i;
  17   long j = 0;
  18   for (i = 0; i < b; ++i)
  19     j |= (p->s[i] ? 3 : 0) << i;
  20   if (p->s[i + 1])
  21   lab:
  22     for (;;)
  23       ;
  24   for (i = 0; i < 4; ++i)
  25     j |= p->s[i] << i;
  26   for (; i; i += 2)
  27     if (c + 1 != a)
  28       goto lab;
  29   for (; i < 8; ++i)
  30     j |= p->s[i] >= 6;
  31   if (j)
  32     foo (d, e);
  33 }