gcc/testsuite/gcc.target/powerpc/p9-extract-4.c

   1 /* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
   2 /* { dg-options "-mdejagnu-cpu=power9 -mvsx -O2" } */
   3 /* { dg-require-effective-target powerpc_vsx } */
   4
   5 /* This file tests the extraction of 64-bit values.  On Power 9, the direct
   6    move is prefered for the  64-bit extract as it is either lower latency or
   7    the same latency as the extract instruction depending on the Endianess of
   8    the system.  Furthermore, there can be up to four move instructions in
   9    flight at a time versus only two extract intructions at a time.  */
  10
  11 #include <altivec.h>
  12
  13 unsigned long long
  14 extract_bool_long_long_0 (vector bool long long a)
  15 {
  16   int c = 0;
  17   unsigned long long b = vec_extract (a, c);
  18   return b;
  19 }
  20
  21 unsigned long long int
  22 extract_long_long_0 (vector unsigned long long int a)
  23 {
  24   int c = 0;
  25   unsigned long long int b = vec_extract (a, c);
  26   return b;
  27 }
  28
  29 /* { dg-final { scan-assembler-times "m\[ft\]vsr" 2 } } */