gcc/testsuite/gcc.target/i386/pr78794.c

   1 /* PR target/pr78794 */
   2 /* { dg-do compile { target ia32 } } */
   3 /* { dg-options "-O2 -march=slm -mno-bmi -mno-stackrealign" } */
   4 /* { dg-final { scan-assembler "pandn" } } */
   5
   6 typedef unsigned long long ull;
   7
   8 struct S1
   9 {
  10   float x;
  11   ull y;
  12 };
  13
  14
  15 struct S2
  16 {
  17   int a1;
  18   struct S1 *node;
  19   int *a2;
  20 };
  21
  22 void
  23 foo(int c1, int c2, int c3, struct S2 *reg)
  24 {
  25   int i;
  26   for(i=0; i<reg->a1; i++)
  27     if(reg->node[i].y & ((ull) 1 << c1))
  28       {
  29         if(reg->node[i].y & ((ull) 1 << c2))
  30           reg->node[i].y ^= ((ull) 1 << c3);
  31       }
  32 }