gcc/testsuite/gcc.target/powerpc/vec-mul.c

   1 /* { dg-do compile { target { { ! vsx_hw } && powerpc_vsx_ok } } } */
   2 /* { dg-do run { target vsx_hw } } */
   3 /* { dg-options "-mvsx -O3" } */
   4
   5 /* Test that the vec_mul builtin works as expected.  */
   6
   7 #include "altivec.h"
   8
   9 #define N 4096
  10
  11 void abort ();
  12
  13 #define define_test_functions(STYPE, NAMESUFFIX) \
  14 \
  15 STYPE result_##NAMESUFFIX[N]; \
  16 STYPE operand1_##NAMESUFFIX[N]; \
  17 STYPE operand2_##NAMESUFFIX[N]; \
  18 STYPE expected_##NAMESUFFIX[N]; \
  19 \
  20 __attribute__((noinline)) void vector_tests_##NAMESUFFIX () \
  21 { \
  22   int i; \
  23   vector STYPE v1, v2, tmp; \
  24   for (i = 0; i < N; i+=16/sizeof (STYPE)) \
  25     { \
  26       /* result=operand1*operand2.  */ \
  27       v1 = vec_vsx_ld (0, &operand1_##NAMESUFFIX[i]); \
  28       v2 = vec_vsx_ld (0, &operand2_##NAMESUFFIX[i]); \
  29 \
  30       tmp = vec_mul (v1, v2); \
  31       vec_vsx_st (tmp, 0, &result_##NAMESUFFIX[i]); \
  32     } \
  33 } \
  34 \
  35 __attribute__((noinline)) void init_##NAMESUFFIX () \
  36 { \
  37   int i; \
  38   for (i = 0; i < N; ++i) \
  39     { \
  40       result_##NAMESUFFIX[i] = 0; \
  41       operand1_##NAMESUFFIX[i] = (i+1) % 31; \
  42       operand2_##NAMESUFFIX[i] = (i*2) % 15; \
  43       expected_##NAMESUFFIX[i] = operand1_##NAMESUFFIX[i] * \
  44                                  operand2_##NAMESUFFIX[i]; \
  45     } \
  46 } \
  47 \
  48 __attribute__((noinline)) void verify_results_##NAMESUFFIX () \
  49 { \
  50   int i; \
  51   for (i = 0; i < N; ++i) \
  52     { \
  53       if (result_##NAMESUFFIX[i] != expected_##NAMESUFFIX[i]) \
  54         abort (); \
  55     } \
  56 }
  57
  58
  59 #define execute_test_functions(STYPE, NAMESUFFIX) \
  60 { \
  61   init_##NAMESUFFIX (); \
  62   vector_tests_##NAMESUFFIX (); \
  63   verify_results_##NAMESUFFIX (); \
  64 }
  65
  66
  67 define_test_functions (signed int, si);
  68 define_test_functions (unsigned int, ui);
  69 define_test_functions (signed short, ss);
  70 define_test_functions (unsigned short, us);
  71 define_test_functions (signed char, sc);
  72 define_test_functions (unsigned char, uc);
  73 define_test_functions (float, f);
  74
  75 int main ()
  76 {
  77   execute_test_functions (signed int, si);
  78   execute_test_functions (unsigned int, ui);
  79   execute_test_functions (signed short, ss);
  80   execute_test_functions (unsigned short, us);
  81   execute_test_functions (signed char, sc);
  82   execute_test_functions (unsigned char, uc);
  83   execute_test_functions (float, f);
  84
  85   return 0;
  86 }