gcc/testsuite/gcc.target/i386/funcspec-3.c

   1 /* Test whether using target specific options, we can generate popcnt by
   2    setting the architecture.  */
   3 /* { dg-do compile } */
   4 /* { dg-require-effective-target lp64 } */
   5 /* { dg-skip-if "" { *-*-* } { "-march=*" } { "-march=k8" } } */
   6 /* { dg-options "-O2 -march=k8 -mno-sse3" } */
   7
   8 extern void exit (int);
   9 extern void abort (void);
  10
  11 #define SSE4A_ATTR __attribute__((__target__("arch=amdfam10")))
  12 #define SSE42_ATTR __attribute__((__target__("sse4.2")))
  13
  14 static int sse4a_pop_i (int a) SSE4A_ATTR;
  15 static long sse42_pop_l (long a) SSE42_ATTR;
  16 static int generic_pop_i (int a);
  17 static long generic_pop_l (long a);
  18
  19 static
  20 int sse4a_pop_i (int a)
  21 {
  22   return __builtin_popcount (a);
  23 }
  24
  25 static
  26 long sse42_pop_l (long a)
  27 {
  28   return __builtin_popcountl (a);
  29 }
  30
  31 static
  32 int generic_pop_i (int a)
  33 {
  34   return __builtin_popcount (a);
  35 }
  36
  37 static
  38 long generic_pop_l (long a)
  39 {
  40   return __builtin_popcountl (a);
  41 }
  42
  43 int five = 5;
  44 long seven = 7;
  45
  46 int main ()
  47 {
  48   if (sse4a_pop_i (five) != 2)
  49     abort ();
  50
  51   if (sse42_pop_l (seven) != 3L)
  52     abort ();
  53
  54   if (generic_pop_i (five) != 2)
  55     abort ();
  56
  57   if (generic_pop_l (seven) != 3L)
  58     abort ();
  59
  60   exit (0);
  61 }
  62
  63 /* { dg-final { scan-assembler "popcntl" { target { ! *-*-darwin* } } } } */
  64 /* { dg-final { scan-assembler "popcntq" { target { ! *-*-darwin* } } } } */
  65 /* { dg-final { scan-assembler-times "popcnt" 2 { target *-*-darwin* } } } */
  66 /* { dg-final { scan-assembler "call\t(.*)sse4a_pop_i" } } */
  67 /* { dg-final { scan-assembler "call\t(.*)sse42_pop_l" } } */
  68 /* { dg-final { scan-assembler "call\t(.*)popcountdi2" } } */