none/tests/s390x/spechelper-cr.c

   1 #include <stdio.h>
   2
   3 #define branch(mask,_v1,_v2)                           \
   4   ({                                                   \
   5         unsigned char taken;                           \
   6         unsigned b1 = _v1, b2 = _v2;                   \
   7         asm volatile(   "       cr  %[b1],%[b2]\n\t"   \
   8                         "       brc " #mask " ,1f\n\t" \
   9                         "       mvi %[taken],0\n\t"    \
  10                         "       j   0f\n\t"            \
  11                         "1:     mvi %[taken],1\n\t"    \
  12                         "0:     bcr 0,0 /* nop */\n\t" \
  13              : [taken] "=Q" (taken)                    \
  14              : [b1] "d"(b1), [b2] "d"(b2)              \
  15              : "cc");                                  \
  16         taken;                                         \
  17    })
  18
  19 void
  20 cr_1(void)
  21 {
  22   int wrong, ok, v1, v2;
  23
  24   printf("Test #1  op1 == op2\n");
  25
  26   v1 = v2 = 42;
  27   wrong = ok = 0;
  28
  29   if (branch(0,  v1, v2)) ++wrong; else ++ok;
  30   if (branch(1,  v1, v2)) ++wrong; else ++ok;
  31   if (branch(2,  v1, v2)) ++wrong; else ++ok;
  32   if (branch(3,  v1, v2)) ++wrong; else ++ok;
  33   if (branch(4,  v1, v2)) ++wrong; else ++ok;
  34   if (branch(5,  v1, v2)) ++wrong; else ++ok;
  35   if (branch(6,  v1, v2)) ++wrong; else ++ok;
  36   if (branch(7,  v1, v2)) ++wrong; else ++ok;
  37   if (branch(8,  v1, v2)) ++ok; else ++wrong;
  38   if (branch(9,  v1, v2)) ++ok; else ++wrong;
  39   if (branch(10, v1, v2)) ++ok; else ++wrong;
  40   if (branch(11, v1, v2)) ++ok; else ++wrong;
  41   if (branch(12, v1, v2)) ++ok; else ++wrong;
  42   if (branch(13, v1, v2)) ++ok; else ++wrong;
  43   if (branch(14, v1, v2)) ++ok; else ++wrong;
  44   if (branch(15, v1, v2)) ++ok; else ++wrong;
  45
  46   if (wrong != 0 || ok != 16)
  47     printf("FAILED\n");
  48   else
  49     printf("OK\n");
  50 }
  51
  52 void
  53 cr_2(void)
  54 {
  55   int wrong, ok, v1, v2;
  56
  57   printf("Test #2  op1 > op2\n");
  58   v1 = 100;
  59   v2 = -10;
  60   wrong = ok = 0;
  61
  62   if (branch(0,  v1, v2)) ++wrong; else ++ok;
  63   if (branch(1,  v1, v2)) ++wrong; else ++ok;
  64   if (branch(2,  v1, v2)) ++ok; else ++wrong;
  65   if (branch(3,  v1, v2)) ++ok; else ++wrong;
  66   if (branch(4,  v1, v2)) ++wrong; else ++ok;
  67   if (branch(5,  v1, v2)) ++wrong; else ++ok;
  68   if (branch(6,  v1, v2)) ++ok; else ++wrong;
  69   if (branch(7,  v1, v2)) ++ok; else ++wrong;
  70   if (branch(8,  v1, v2)) ++wrong; else ++ok;
  71   if (branch(9,  v1, v2)) ++wrong; else ++ok;
  72   if (branch(10, v1, v2)) ++ok; else ++wrong;
  73   if (branch(11, v1, v2)) ++ok; else ++wrong;
  74   if (branch(12, v1, v2)) ++wrong; else ++ok;
  75   if (branch(13, v1, v2)) ++wrong; else ++ok;
  76   if (branch(14, v1, v2)) ++ok; else ++wrong;
  77   if (branch(15, v1, v2)) ++ok; else ++wrong;
  78
  79   if (wrong != 0 || ok != 16)
  80     printf("FAILED\n");
  81   else
  82     printf("OK\n");
  83 }
  84
  85 void
  86 cr_3(void)
  87 {
  88   int wrong, ok, v1, v2;
  89
  90   printf("Test #3  op1 < op2\n");
  91   v1 = -100;
  92   v2 = -10;
  93   wrong = ok = 0;
  94
  95   if (branch(0,  v1, v2)) ++wrong; else ++ok;
  96   if (branch(1,  v1, v2)) ++wrong; else ++ok;
  97   if (branch(2,  v1, v2)) ++wrong; else ++ok;
  98   if (branch(3,  v1, v2)) ++wrong; else ++ok;
  99   if (branch(4,  v1, v2)) ++ok; else ++wrong;
 100   if (branch(5,  v1, v2)) ++ok; else ++wrong;
 101   if (branch(6,  v1, v2)) ++ok; else ++wrong;
 102   if (branch(7,  v1, v2)) ++ok; else ++wrong;
 103   if (branch(8,  v1, v2)) ++wrong; else ++ok;
 104   if (branch(9,  v1, v2)) ++wrong; else ++ok;
 105   if (branch(10, v1, v2)) ++wrong; else ++ok;
 106   if (branch(11, v1, v2)) ++wrong; else ++ok;
 107   if (branch(12, v1, v2)) ++ok; else ++wrong;
 108   if (branch(13, v1, v2)) ++ok; else ++wrong;
 109   if (branch(14, v1, v2)) ++ok; else ++wrong;
 110   if (branch(15, v1, v2)) ++ok; else ++wrong;
 111
 112   if (wrong != 0 || ok != 16)
 113     printf("FAILED\n");
 114   else
 115     printf("OK\n");
 116 }
 117
 118 int main()
 119 {
 120   cr_1();
 121   cr_2();
 122   cr_3();
 123   return 0;
 124 }