clang/test/CodeGen/Atomics.c

   1 // Test frontend handling of __sync builtins.
   2 // Modified from a gcc testcase.
   3 // RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm %s -o - | FileCheck %s
   4
   5 signed char sc;
   6 unsigned char uc;
   7 signed short ss;
   8 unsigned short us;
   9 signed int si;
  10 unsigned int ui;
  11 signed long long sll;
  12 unsigned long long ull;
  13 __int128 s128;
  14 unsigned  __int128 u128;
  15
  16 void test_op_ignore (void) // CHECK-LABEL: define{{.*}} void @test_op_ignore
  17 {
  18   (void) __sync_fetch_and_add (&sc, 1); // CHECK: atomicrmw add ptr {{.*}} seq_cst, align 1
  19   (void) __sync_fetch_and_add (&uc, 1); // CHECK: atomicrmw add ptr {{.*}} seq_cst, align 1
  20   (void) __sync_fetch_and_add (&ss, 1); // CHECK: atomicrmw add ptr {{.*}} seq_cst, align 2
  21   (void) __sync_fetch_and_add (&us, 1); // CHECK: atomicrmw add ptr {{.*}} seq_cst, align 2
  22   (void) __sync_fetch_and_add (&si, 1); // CHECK: atomicrmw add ptr {{.*}} seq_cst, align 4
  23   (void) __sync_fetch_and_add (&ui, 1); // CHECK: atomicrmw add ptr {{.*}} seq_cst, align 4
  24   (void) __sync_fetch_and_add (&sll, 1); // CHECK: atomicrmw add ptr {{.*}} seq_cst, align 8
  25   (void) __sync_fetch_and_add (&ull, 1); // CHECK: atomicrmw add ptr {{.*}} seq_cst, align 8
  26
  27   (void) __sync_fetch_and_sub (&sc, 1); // CHECK: atomicrmw sub ptr {{.*}} seq_cst, align 1
  28   (void) __sync_fetch_and_sub (&uc, 1); // CHECK: atomicrmw sub ptr {{.*}} seq_cst, align 1
  29   (void) __sync_fetch_and_sub (&ss, 1); // CHECK: atomicrmw sub ptr {{.*}} seq_cst, align 2
  30   (void) __sync_fetch_and_sub (&us, 1); // CHECK: atomicrmw sub ptr {{.*}} seq_cst, align 2
  31   (void) __sync_fetch_and_sub (&si, 1); // CHECK: atomicrmw sub ptr {{.*}} seq_cst, align 4
  32   (void) __sync_fetch_and_sub (&ui, 1); // CHECK: atomicrmw sub ptr {{.*}} seq_cst, align 4
  33   (void) __sync_fetch_and_sub (&sll, 1); // CHECK: atomicrmw sub ptr {{.*}} seq_cst, align 8
  34   (void) __sync_fetch_and_sub (&ull, 1); // CHECK: atomicrmw sub ptr {{.*}} seq_cst, align 8
  35
  36   (void) __sync_fetch_and_or (&sc, 1); // CHECK: atomicrmw or ptr {{.*}} seq_cst, align 1
  37   (void) __sync_fetch_and_or (&uc, 1); // CHECK: atomicrmw or ptr {{.*}} seq_cst, align 1
  38   (void) __sync_fetch_and_or (&ss, 1); // CHECK: atomicrmw or ptr {{.*}} seq_cst, align 2
  39   (void) __sync_fetch_and_or (&us, 1); // CHECK: atomicrmw or ptr {{.*}} seq_cst, align 2
  40   (void) __sync_fetch_and_or (&si, 1); // CHECK: atomicrmw or ptr {{.*}} seq_cst, align 4
  41   (void) __sync_fetch_and_or (&ui, 1); // CHECK: atomicrmw or ptr {{.*}} seq_cst, align 4
  42   (void) __sync_fetch_and_or (&sll, 1); // CHECK: atomicrmw or ptr {{.*}} seq_cst, align 8
  43   (void) __sync_fetch_and_or (&ull, 1); // CHECK: atomicrmw or ptr {{.*}} seq_cst, align 8
  44
  45   (void) __sync_fetch_and_xor (&sc, 1); // CHECK: atomicrmw xor ptr {{.*}} seq_cst, align 1
  46   (void) __sync_fetch_and_xor (&uc, 1); // CHECK: atomicrmw xor ptr {{.*}} seq_cst, align 1
  47   (void) __sync_fetch_and_xor (&ss, 1); // CHECK: atomicrmw xor ptr {{.*}} seq_cst, align 2
  48   (void) __sync_fetch_and_xor (&us, 1); // CHECK: atomicrmw xor ptr {{.*}} seq_cst, align 2
  49   (void) __sync_fetch_and_xor (&si, 1); // CHECK: atomicrmw xor ptr {{.*}} seq_cst, align 4
  50   (void) __sync_fetch_and_xor (&ui, 1); // CHECK: atomicrmw xor ptr {{.*}} seq_cst, align 4
  51   (void) __sync_fetch_and_xor (&sll, 1); // CHECK: atomicrmw xor ptr {{.*}} seq_cst, align 8
  52   (void) __sync_fetch_and_xor (&ull, 1); // CHECK: atomicrmw xor ptr {{.*}} seq_cst, align 8
  53   (void) __sync_fetch_and_xor (&u128, 1); // CHECK: atomicrmw xor ptr {{.*}} seq_cst, align 16
  54   (void) __sync_fetch_and_xor (&s128, 1); // CHECK: atomicrmw xor ptr {{.*}} seq_cst, align 16
  55
  56   (void) __sync_fetch_and_nand (&sc, 1); // CHECK: atomicrmw nand ptr {{.*}} seq_cst, align 1
  57   (void) __sync_fetch_and_nand (&uc, 1); // CHECK: atomicrmw nand ptr {{.*}} seq_cst, align 1
  58   (void) __sync_fetch_and_nand (&ss, 1); // CHECK: atomicrmw nand ptr {{.*}} seq_cst, align 2
  59   (void) __sync_fetch_and_nand (&us, 1); // CHECK: atomicrmw nand ptr {{.*}} seq_cst, align 2
  60   (void) __sync_fetch_and_nand (&si, 1); // CHECK: atomicrmw nand ptr {{.*}} seq_cst, align 4
  61   (void) __sync_fetch_and_nand (&ui, 1); // CHECK: atomicrmw nand ptr {{.*}} seq_cst, align 4
  62   (void) __sync_fetch_and_nand (&sll, 1); // CHECK: atomicrmw nand ptr {{.*}} seq_cst, align 8
  63   (void) __sync_fetch_and_nand (&ull, 1); // CHECK: atomicrmw nand ptr {{.*}} seq_cst, align 8
  64
  65   (void) __sync_fetch_and_and (&sc, 1); // CHECK: atomicrmw and ptr {{.*}} seq_cst, align 1
  66   (void) __sync_fetch_and_and (&uc, 1); // CHECK: atomicrmw and ptr {{.*}} seq_cst, align 1
  67   (void) __sync_fetch_and_and (&ss, 1); // CHECK: atomicrmw and ptr {{.*}} seq_cst, align 2
  68   (void) __sync_fetch_and_and (&us, 1); // CHECK: atomicrmw and ptr {{.*}} seq_cst, align 2
  69   (void) __sync_fetch_and_and (&si, 1); // CHECK: atomicrmw and ptr {{.*}} seq_cst, align 4
  70   (void) __sync_fetch_and_and (&ui, 1); // CHECK: atomicrmw and ptr {{.*}} seq_cst, align 4
  71   (void) __sync_fetch_and_and (&sll, 1); // CHECK: atomicrmw and ptr {{.*}} seq_cst, align 8
  72   (void) __sync_fetch_and_and (&ull, 1); // CHECK: atomicrmw and ptr {{.*}} seq_cst, align 8
  73
  74 }
  75
  76 void test_fetch_and_op (void) // CHECK-LABEL: define{{.*}} void @test_fetch_and_op
  77 {
  78   sc = __sync_fetch_and_add (&sc, 11); // CHECK: atomicrmw add
  79   uc = __sync_fetch_and_add (&uc, 11); // CHECK: atomicrmw add
  80   ss = __sync_fetch_and_add (&ss, 11); // CHECK: atomicrmw add
  81   us = __sync_fetch_and_add (&us, 11); // CHECK: atomicrmw add
  82   si = __sync_fetch_and_add (&si, 11); // CHECK: atomicrmw add
  83   ui = __sync_fetch_and_add (&ui, 11); // CHECK: atomicrmw add
  84   sll = __sync_fetch_and_add (&sll, 11); // CHECK: atomicrmw add
  85   ull = __sync_fetch_and_add (&ull, 11); // CHECK: atomicrmw add
  86
  87   sc = __sync_fetch_and_sub (&sc, 11); // CHECK: atomicrmw sub
  88   uc = __sync_fetch_and_sub (&uc, 11); // CHECK: atomicrmw sub
  89   ss = __sync_fetch_and_sub (&ss, 11); // CHECK: atomicrmw sub
  90   us = __sync_fetch_and_sub (&us, 11); // CHECK: atomicrmw sub
  91   si = __sync_fetch_and_sub (&si, 11); // CHECK: atomicrmw sub
  92   ui = __sync_fetch_and_sub (&ui, 11); // CHECK: atomicrmw sub
  93   sll = __sync_fetch_and_sub (&sll, 11); // CHECK: atomicrmw sub
  94   ull = __sync_fetch_and_sub (&ull, 11); // CHECK: atomicrmw sub
  95
  96   sc = __sync_fetch_and_or (&sc, 11); // CHECK: atomicrmw or
  97   uc = __sync_fetch_and_or (&uc, 11); // CHECK: atomicrmw or
  98   ss = __sync_fetch_and_or (&ss, 11); // CHECK: atomicrmw or
  99   us = __sync_fetch_and_or (&us, 11); // CHECK: atomicrmw or
 100   si = __sync_fetch_and_or (&si, 11); // CHECK: atomicrmw or
 101   ui = __sync_fetch_and_or (&ui, 11); // CHECK: atomicrmw or
 102   sll = __sync_fetch_and_or (&sll, 11); // CHECK: atomicrmw or
 103   ull = __sync_fetch_and_or (&ull, 11); // CHECK: atomicrmw or
 104
 105   sc = __sync_fetch_and_xor (&sc, 11); // CHECK: atomicrmw xor
 106   uc = __sync_fetch_and_xor (&uc, 11); // CHECK: atomicrmw xor
 107   ss = __sync_fetch_and_xor (&ss, 11); // CHECK: atomicrmw xor
 108   us = __sync_fetch_and_xor (&us, 11); // CHECK: atomicrmw xor
 109   si = __sync_fetch_and_xor (&si, 11); // CHECK: atomicrmw xor
 110   ui = __sync_fetch_and_xor (&ui, 11); // CHECK: atomicrmw xor
 111   sll = __sync_fetch_and_xor (&sll, 11); // CHECK: atomicrmw xor
 112   ull = __sync_fetch_and_xor (&ull, 11); // CHECK: atomicrmw xor
 113
 114   sc = __sync_fetch_and_nand (&sc, 11); // CHECK: atomicrmw nand
 115   uc = __sync_fetch_and_nand (&uc, 11); // CHECK: atomicrmw nand
 116   ss = __sync_fetch_and_nand (&ss, 11); // CHECK: atomicrmw nand
 117   us = __sync_fetch_and_nand (&us, 11); // CHECK: atomicrmw nand
 118   si = __sync_fetch_and_nand (&si, 11); // CHECK: atomicrmw nand
 119   ui = __sync_fetch_and_nand (&ui, 11); // CHECK: atomicrmw nand
 120   sll = __sync_fetch_and_nand (&sll, 11); // CHECK: atomicrmw nand
 121   ull = __sync_fetch_and_nand (&ull, 11); // CHECK: atomicrmw nand
 122
 123   sc = __sync_fetch_and_and (&sc, 11); // CHECK: atomicrmw and
 124   uc = __sync_fetch_and_and (&uc, 11); // CHECK: atomicrmw and
 125   ss = __sync_fetch_and_and (&ss, 11); // CHECK: atomicrmw and
 126   us = __sync_fetch_and_and (&us, 11); // CHECK: atomicrmw and
 127   si = __sync_fetch_and_and (&si, 11); // CHECK: atomicrmw and
 128   ui = __sync_fetch_and_and (&ui, 11); // CHECK: atomicrmw and
 129   sll = __sync_fetch_and_and (&sll, 11); // CHECK: atomicrmw and
 130   ull = __sync_fetch_and_and (&ull, 11); // CHECK: atomicrmw and
 131
 132 }
 133
 134 void test_op_and_fetch (void)
 135 {
 136   sc = __sync_add_and_fetch (&sc, uc); // CHECK: atomicrmw add
 137   uc = __sync_add_and_fetch (&uc, uc); // CHECK: atomicrmw add
 138   ss = __sync_add_and_fetch (&ss, uc); // CHECK: atomicrmw add
 139   us = __sync_add_and_fetch (&us, uc); // CHECK: atomicrmw add
 140   si = __sync_add_and_fetch (&si, uc); // CHECK: atomicrmw add
 141   ui = __sync_add_and_fetch (&ui, uc); // CHECK: atomicrmw add
 142   sll = __sync_add_and_fetch (&sll, uc); // CHECK: atomicrmw add
 143   ull = __sync_add_and_fetch (&ull, uc); // CHECK: atomicrmw add
 144
 145   sc = __sync_sub_and_fetch (&sc, uc); // CHECK: atomicrmw sub
 146   uc = __sync_sub_and_fetch (&uc, uc); // CHECK: atomicrmw sub
 147   ss = __sync_sub_and_fetch (&ss, uc); // CHECK: atomicrmw sub
 148   us = __sync_sub_and_fetch (&us, uc); // CHECK: atomicrmw sub
 149   si = __sync_sub_and_fetch (&si, uc); // CHECK: atomicrmw sub
 150   ui = __sync_sub_and_fetch (&ui, uc); // CHECK: atomicrmw sub
 151   sll = __sync_sub_and_fetch (&sll, uc); // CHECK: atomicrmw sub
 152   ull = __sync_sub_and_fetch (&ull, uc); // CHECK: atomicrmw sub
 153
 154   sc = __sync_or_and_fetch (&sc, uc); // CHECK: atomicrmw or
 155   uc = __sync_or_and_fetch (&uc, uc); // CHECK: atomicrmw or
 156   ss = __sync_or_and_fetch (&ss, uc); // CHECK: atomicrmw or
 157   us = __sync_or_and_fetch (&us, uc); // CHECK: atomicrmw or
 158   si = __sync_or_and_fetch (&si, uc); // CHECK: atomicrmw or
 159   ui = __sync_or_and_fetch (&ui, uc); // CHECK: atomicrmw or
 160   sll = __sync_or_and_fetch (&sll, uc); // CHECK: atomicrmw or
 161   ull = __sync_or_and_fetch (&ull, uc); // CHECK: atomicrmw or
 162
 163   sc = __sync_xor_and_fetch (&sc, uc); // CHECK: atomicrmw xor
 164   uc = __sync_xor_and_fetch (&uc, uc); // CHECK: atomicrmw xor
 165   ss = __sync_xor_and_fetch (&ss, uc); // CHECK: atomicrmw xor
 166   us = __sync_xor_and_fetch (&us, uc); // CHECK: atomicrmw xor
 167   si = __sync_xor_and_fetch (&si, uc); // CHECK: atomicrmw xor
 168   ui = __sync_xor_and_fetch (&ui, uc); // CHECK: atomicrmw xor
 169   sll = __sync_xor_and_fetch (&sll, uc); // CHECK: atomicrmw xor
 170   ull = __sync_xor_and_fetch (&ull, uc); // CHECK: atomicrmw xor
 171
 172   sc = __sync_nand_and_fetch (&sc, uc); // CHECK: atomicrmw nand
 173                                         // CHECK: and
 174                                         // CHECK: xor
 175                                         // CHECK: -1
 176   uc = __sync_nand_and_fetch (&uc, uc); // CHECK: atomicrmw nand
 177                                         // CHECK: and
 178                                         // CHECK: xor
 179                                         // CHECK: -1
 180   ss = __sync_nand_and_fetch (&ss, uc); // CHECK: atomicrmw nand
 181                                         // CHECK: and
 182                                         // CHECK: xor
 183                                         // CHECK: -1
 184   us = __sync_nand_and_fetch (&us, uc); // CHECK: atomicrmw nand
 185                                         // CHECK: and
 186                                         // CHECK: xor
 187                                         // CHECK: -1
 188   si = __sync_nand_and_fetch (&si, uc); // CHECK: atomicrmw nand
 189                                         // CHECK: and
 190                                         // CHECK: xor
 191                                         // CHECK: -1
 192   ui = __sync_nand_and_fetch (&ui, uc); // CHECK: atomicrmw nand
 193                                         // CHECK: and
 194                                         // CHECK: xor
 195                                         // CHECK: -1
 196   sll = __sync_nand_and_fetch (&sll, uc); // CHECK: atomicrmw nand
 197                                           // CHECK: and
 198                                           // CHECK: xor
 199                                           // CHECK: -1
 200   ull = __sync_nand_and_fetch (&ull, uc); // CHECK: atomicrmw nand
 201                                           // CHECK: and
 202                                           // CHECK: xor
 203                                           // CHECK: -1
 204   u128 = __sync_nand_and_fetch (&u128, uc); // CHECK: atomicrmw nand
 205                                           // CHECK: and
 206                                           // CHECK: xor
 207                                           // CHECK: -1
 208   s128 = __sync_nand_and_fetch (&s128, uc); // CHECK: atomicrmw nand
 209                                           // CHECK: and
 210                                           // CHECK: xor
 211                                           // CHECK: -1
 212
 213   sc = __sync_and_and_fetch (&sc, uc); // CHECK: atomicrmw and
 214   uc = __sync_and_and_fetch (&uc, uc); // CHECK: atomicrmw and
 215   ss = __sync_and_and_fetch (&ss, uc); // CHECK: atomicrmw and
 216   us = __sync_and_and_fetch (&us, uc); // CHECK: atomicrmw and
 217   si = __sync_and_and_fetch (&si, uc); // CHECK: atomicrmw and
 218   ui = __sync_and_and_fetch (&ui, uc); // CHECK: atomicrmw and
 219   sll = __sync_and_and_fetch (&sll, uc); // CHECK: atomicrmw and
 220   ull = __sync_and_and_fetch (&ull, uc); // CHECK: atomicrmw and
 221
 222 }
 223
 224 void test_compare_and_swap (void)
 225 {
 226   sc = __sync_val_compare_and_swap (&sc, uc, sc);
 227   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 1
 228   // CHECK: extractvalue { i8, i1 } [[PAIR]], 0
 229
 230   uc = __sync_val_compare_and_swap (&uc, uc, sc);
 231   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 1
 232   // CHECK: extractvalue { i8, i1 } [[PAIR]], 0
 233
 234   ss = __sync_val_compare_and_swap (&ss, uc, sc);
 235   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 2
 236   // CHECK: extractvalue { i16, i1 } [[PAIR]], 0
 237
 238   us = __sync_val_compare_and_swap (&us, uc, sc);
 239   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 2
 240   // CHECK: extractvalue { i16, i1 } [[PAIR]], 0
 241
 242   si = __sync_val_compare_and_swap (&si, uc, sc);
 243   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 4
 244   // CHECK: extractvalue { i32, i1 } [[PAIR]], 0
 245
 246   ui = __sync_val_compare_and_swap (&ui, uc, sc);
 247   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 4
 248   // CHECK: extractvalue { i32, i1 } [[PAIR]], 0
 249
 250   sll = __sync_val_compare_and_swap (&sll, uc, sc);
 251   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 8
 252   // CHECK: extractvalue { i64, i1 } [[PAIR]], 0
 253
 254   ull = __sync_val_compare_and_swap (&ull, uc, sc);
 255   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 8
 256   // CHECK: extractvalue { i64, i1 } [[PAIR]], 0
 257
 258
 259   ui = __sync_bool_compare_and_swap (&sc, uc, sc);
 260   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 1
 261   // CHECK: extractvalue { i8, i1 } [[PAIR]], 1
 262
 263   ui = __sync_bool_compare_and_swap (&uc, uc, sc);
 264   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 1
 265   // CHECK: extractvalue { i8, i1 } [[PAIR]], 1
 266
 267   ui = __sync_bool_compare_and_swap (&ss, uc, sc);
 268   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 2
 269   // CHECK: extractvalue { i16, i1 } [[PAIR]], 1
 270
 271   ui = __sync_bool_compare_and_swap (&us, uc, sc);
 272   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 2
 273   // CHECK: extractvalue { i16, i1 } [[PAIR]], 1
 274
 275   ui = __sync_bool_compare_and_swap (&si, uc, sc);
 276   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 4
 277   // CHECK: extractvalue { i32, i1 } [[PAIR]], 1
 278
 279   ui = __sync_bool_compare_and_swap (&ui, uc, sc);
 280   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 4
 281   // CHECK: extractvalue { i32, i1 } [[PAIR]], 1
 282
 283   ui = __sync_bool_compare_and_swap (&sll, uc, sc);
 284   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 8
 285   // CHECK: extractvalue { i64, i1 } [[PAIR]], 1
 286
 287   ui = __sync_bool_compare_and_swap (&ull, uc, sc);
 288   // CHECK: [[PAIR:%[a-z0-9._]+]] = cmpxchg ptr {{.*}} seq_cst, align 8
 289   // CHECK: extractvalue { i64, i1 } [[PAIR]], 1
 290 }
 291
 292 void test_lock (void)
 293 {
 294   sc = __sync_lock_test_and_set (&sc, 1); // CHECK: atomicrmw xchg ptr {{.*}} seq_cst, align 1
 295   uc = __sync_lock_test_and_set (&uc, 1); // CHECK: atomicrmw xchg ptr {{.*}} seq_cst, align 1
 296   ss = __sync_lock_test_and_set (&ss, 1); // CHECK: atomicrmw xchg ptr {{.*}} seq_cst, align 2
 297   us = __sync_lock_test_and_set (&us, 1); // CHECK: atomicrmw xchg ptr {{.*}} seq_cst, align 2
 298   si = __sync_lock_test_and_set (&si, 1); // CHECK: atomicrmw xchg ptr {{.*}} seq_cst, align 4
 299   ui = __sync_lock_test_and_set (&ui, 1); // CHECK: atomicrmw xchg ptr {{.*}} seq_cst, align 4
 300   sll = __sync_lock_test_and_set (&sll, 1); // CHECK: atomicrmw xchg ptr {{.*}} seq_cst, align 8
 301   ull = __sync_lock_test_and_set (&ull, 1); // CHECK: atomicrmw xchg ptr {{.*}} seq_cst, align 8
 302
 303   __sync_synchronize (); // CHECK: fence seq_cst
 304
 305   __sync_lock_release (&sc); // CHECK: store atomic {{.*}} release, align 1
 306   __sync_lock_release (&uc); // CHECK: store atomic {{.*}} release, align 1
 307   __sync_lock_release (&ss); // CHECK: store atomic {{.*}} release, align 2
 308   __sync_lock_release (&us); /// CHECK: store atomic {{.*}} release, align 2
 309   __sync_lock_release (&si); // CHECK: store atomic {{.*}} release, align 4
 310   __sync_lock_release (&ui); // CHECK: store atomic {{.*}} release, align 4
 311   __sync_lock_release (&sll); // CHECK: store atomic {{.*}} release, align 8
 312   __sync_lock_release (&ull); // CHECK: store atomic {{.*}} release, align 8
 313 }
 314
 315 void test_atomic(void) {
 316   ui = __atomic_fetch_min(&ui, 5, __ATOMIC_RELAXED); // CHECK: atomicrmw umin {{.*}} monotonic, align 4
 317   si = __atomic_fetch_min(&si, 5, __ATOMIC_SEQ_CST); // CHECK: atomicrmw min {{.*}} seq_cst, align 4
 318   ui = __atomic_fetch_max(&ui, 5, __ATOMIC_ACQUIRE); // CHECK: atomicrmw umax {{.*}} acquire, align 4
 319   si = __atomic_fetch_max(&si, 5, __ATOMIC_RELEASE); // CHECK: atomicrmw max {{.*}} release, align 4
 320 }