gcc/testsuite/gcc.target/i386/vect-rebuild.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -mavx -fno-tree-forwprop" } */
   3
   4 typedef double v2df __attribute__ ((__vector_size__ (16)));
   5 typedef double v4df __attribute__ ((__vector_size__ (32)));
   6
   7 v2df f1 (v2df x)
   8 {
   9   v2df xx = { x[0], x[1] };
  10   return xx;
  11 }
  12
  13 v4df f2 (v4df x)
  14 {
  15   v4df xx = { x[0], x[1], x[2], x[3] };
  16   return xx;
  17 }
  18
  19 v2df g (v2df x)
  20 {
  21   v2df xx = { x[1], x[0] };
  22   return xx;
  23 }
  24
  25 v2df h (v4df x)
  26 {
  27   v2df xx = { x[2], x[3] };
  28   return xx;
  29 }
  30
  31 /* { dg-final { scan-assembler-not "unpck" } } */
  32 /* { dg-final { scan-assembler-times "\tv?permilpd\[ \t\]" 1 } } */
  33 /* { dg-final { scan-assembler-times "\tv?extractf128\[ \t\]" 1 } } */