reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
// RUN: %clang_cc1 -triple armv7 -fsyntax-only -verify %s

struct Simple {
  char a, b;
};

int test_ldrex(char *addr) {
  int sum = 0;
  sum += __builtin_arm_ldrex(addr);
  sum += __builtin_arm_ldrex((short *)addr);
  sum += __builtin_arm_ldrex((int *)addr);
  sum += __builtin_arm_ldrex((long long *)addr);
  sum += __builtin_arm_ldrex((float *)addr);
  sum += __builtin_arm_ldrex((double *)addr);
  sum += *__builtin_arm_ldrex((int **)addr);
  sum += __builtin_arm_ldrex((struct Simple **)addr)->a;
  sum += __builtin_arm_ldrex((volatile char *)addr);
  sum += __builtin_arm_ldrex((const volatile char *)addr);

  // In principle this might be valid, but stick to ints and floats for scalar
  // types at the moment.
  sum += __builtin_arm_ldrex((struct Simple *)addr).a; // expected-error {{address argument to atomic builtin must be a pointer to}}

  sum += __builtin_arm_ldrex((__int128 *)addr); // expected-error {{__int128 is not supported on this target}} expected-error {{address argument to load or store exclusive builtin must be a pointer to 1,2,4 or 8 byte type}}

  __builtin_arm_ldrex(); // expected-error {{too few arguments to function call}}
  __builtin_arm_ldrex(1, 2); // expected-error {{too many arguments to function call}}
  return sum;
}

int test_strex(char *addr) {
  int res = 0;
  struct Simple var = {0};
  res |= __builtin_arm_strex(4, addr);
  res |= __builtin_arm_strex(42, (short *)addr);
  res |= __builtin_arm_strex(42, (int *)addr);
  res |= __builtin_arm_strex(42, (long long *)addr);
  res |= __builtin_arm_strex(2.71828f, (float *)addr);
  res |= __builtin_arm_strex(3.14159, (double *)addr);
  res |= __builtin_arm_strex(&var, (struct Simple **)addr);

  res |= __builtin_arm_strex(42, (volatile char *)addr);
  res |= __builtin_arm_strex(42, (char *const)addr);
  res |= __builtin_arm_strex(42, (const char *)addr); // expected-warning {{passing 'const char *' to parameter of type 'volatile char *' discards qualifiers}}


  res |= __builtin_arm_strex(var, (struct Simple *)addr); // expected-error {{address argument to atomic builtin must be a pointer to}}
  res |= __builtin_arm_strex(var, (struct Simple **)addr); // expected-error {{passing 'struct Simple' to parameter of incompatible type 'struct Simple *'}}
  res |= __builtin_arm_strex(&var, (struct Simple **)addr).a; // expected-error {{is not a structure or union}}

  res |= __builtin_arm_strex(1, (__int128 *)addr); // expected-error {{__int128 is not supported on this target}} expected-error {{address argument to load or store exclusive builtin must be a pointer to 1,2,4 or 8 byte type}}

  __builtin_arm_strex(1); // expected-error {{too few arguments to function call}}
  __builtin_arm_strex(1, 2, 3); // expected-error {{too many arguments to function call}}
  return res;
}

int test_ldaex(char *addr) {
  int sum = 0;
  sum += __builtin_arm_ldaex(addr);
  sum += __builtin_arm_ldaex((short *)addr);
  sum += __builtin_arm_ldaex((int *)addr);
  sum += __builtin_arm_ldaex((long long *)addr);
  sum += __builtin_arm_ldaex((float *)addr);
  sum += __builtin_arm_ldaex((double *)addr);
  sum += *__builtin_arm_ldaex((int **)addr);
  sum += __builtin_arm_ldaex((struct Simple **)addr)->a;
  sum += __builtin_arm_ldaex((volatile char *)addr);
  sum += __builtin_arm_ldaex((const volatile char *)addr);

  // In principle this might be valid, but stick to ints and floats for scalar
  // types at the moment.
  sum += __builtin_arm_ldaex((struct Simple *)addr).a; // expected-error {{address argument to atomic builtin must be a pointer to}}

  sum += __builtin_arm_ldaex((__int128 *)addr); // expected-error {{__int128 is not supported on this target}} expected-error {{address argument to load or store exclusive builtin must be a pointer to 1,2,4 or 8 byte type}}

  __builtin_arm_ldaex(); // expected-error {{too few arguments to function call}}
  __builtin_arm_ldaex(1, 2); // expected-error {{too many arguments to function call}}
  return sum;
}

int test_stlex(char *addr) {
  int res = 0;
  struct Simple var = {0};
  res |= __builtin_arm_stlex(4, addr);
  res |= __builtin_arm_stlex(42, (short *)addr);
  res |= __builtin_arm_stlex(42, (int *)addr);
  res |= __builtin_arm_stlex(42, (long long *)addr);
  res |= __builtin_arm_stlex(2.71828f, (float *)addr);
  res |= __builtin_arm_stlex(3.14159, (double *)addr);
  res |= __builtin_arm_stlex(&var, (struct Simple **)addr);

  res |= __builtin_arm_stlex(42, (volatile char *)addr);
  res |= __builtin_arm_stlex(42, (char *const)addr);
  res |= __builtin_arm_stlex(42, (const char *)addr); // expected-warning {{passing 'const char *' to parameter of type 'volatile char *' discards qualifiers}}


  res |= __builtin_arm_stlex(var, (struct Simple *)addr); // expected-error {{address argument to atomic builtin must be a pointer to}}
  res |= __builtin_arm_stlex(var, (struct Simple **)addr); // expected-error {{passing 'struct Simple' to parameter of incompatible type 'struct Simple *'}}
  res |= __builtin_arm_stlex(&var, (struct Simple **)addr).a; // expected-error {{is not a structure or union}}

  res |= __builtin_arm_stlex(1, (__int128 *)addr); // expected-error {{__int128 is not supported on this target}} expected-error {{address argument to load or store exclusive builtin must be a pointer to 1,2,4 or 8 byte type}}

  __builtin_arm_stlex(1); // expected-error {{too few arguments to function call}}
  __builtin_arm_stlex(1, 2, 3); // expected-error {{too many arguments to function call}}
  return res;
}

void test_clrex() {
  __builtin_arm_clrex();
  __builtin_arm_clrex(1); // expected-error {{too many arguments to function call}}
}