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      1 // Test instrumentation of general constructs in C.
      2 
      3 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-general.c %s -o - -emit-llvm -fprofile-instr-generate | FileCheck -check-prefix=PGOGEN %s
      4 
      5 // RUN: llvm-profdata merge %S/Inputs/c-general.proftext -o %t.profdata
      6 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-general.c %s -o - -emit-llvm -fprofile-instr-use=%t.profdata | FileCheck -check-prefix=PGOUSE %s
      7 
      8 // PGOGEN: @[[SLC:__llvm_profile_counters_simple_loops]] = hidden global [4 x i64] zeroinitializer
      9 // PGOGEN: @[[IFC:__llvm_profile_counters_conditionals]] = hidden global [11 x i64] zeroinitializer
     10 // PGOGEN: @[[EEC:__llvm_profile_counters_early_exits]] = hidden global [9 x i64] zeroinitializer
     11 // PGOGEN: @[[JMC:__llvm_profile_counters_jumps]] = hidden global [22 x i64] zeroinitializer
     12 // PGOGEN: @[[SWC:__llvm_profile_counters_switches]] = hidden global [19 x i64] zeroinitializer
     13 // PGOGEN: @[[BSC:__llvm_profile_counters_big_switch]] = hidden global [17 x i64] zeroinitializer
     14 // PGOGEN: @[[BOC:__llvm_profile_counters_boolean_operators]] = hidden global [8 x i64] zeroinitializer
     15 // PGOGEN: @[[BLC:__llvm_profile_counters_boolop_loops]] = hidden global [9 x i64] zeroinitializer
     16 // PGOGEN: @[[COC:__llvm_profile_counters_conditional_operator]] = hidden global [3 x i64] zeroinitializer
     17 // PGOGEN: @[[MAC:__llvm_profile_counters_main]] = hidden global [1 x i64] zeroinitializer
     18 // PGOGEN: @[[STC:__llvm_profile_counters_static_func]] = internal global [2 x i64] zeroinitializer
     19 
     20 // PGOGEN-LABEL: @simple_loops()
     21 // PGOUSE-LABEL: @simple_loops()
     22 // PGOGEN: store {{.*}} @[[SLC]], i64 0, i64 0
     23 void simple_loops() {
     24   int i;
     25   // PGOGEN: store {{.*}} @[[SLC]], i64 0, i64 1
     26   // PGOUSE: br {{.*}} !prof ![[SL1:[0-9]+]]
     27   for (i = 0; i < 100; ++i) {
     28   }
     29   // PGOGEN: store {{.*}} @[[SLC]], i64 0, i64 2
     30   // PGOUSE: br {{.*}} !prof ![[SL2:[0-9]+]]
     31   while (i > 0)
     32     i--;
     33   // PGOGEN: store {{.*}} @[[SLC]], i64 0, i64 3
     34   // PGOUSE: br {{.*}} !prof ![[SL3:[0-9]+]]
     35   do {} while (i++ < 75);
     36 
     37   // PGOGEN-NOT: store {{.*}} @[[SLC]],
     38   // PGOUSE-NOT: br {{.*}} !prof ![0-9]+
     39 }
     40 
     41 // PGOGEN-LABEL: @conditionals()
     42 // PGOUSE-LABEL: @conditionals()
     43 // PGOGEN: store {{.*}} @[[IFC]], i64 0, i64 0
     44 void conditionals() {
     45   // PGOGEN: store {{.*}} @[[IFC]], i64 0, i64 1
     46   // PGOUSE: br {{.*}} !prof ![[IF1:[0-9]+]]
     47   for (int i = 0; i < 100; ++i) {
     48     // PGOGEN: store {{.*}} @[[IFC]], i64 0, i64 2
     49     // PGOUSE: br {{.*}} !prof ![[IF2:[0-9]+]]
     50     if (i % 2) {
     51       // PGOGEN: store {{.*}} @[[IFC]], i64 0, i64 3
     52       // PGOUSE: br {{.*}} !prof ![[IF3:[0-9]+]]
     53       if (i) {}
     54     // PGOGEN: store {{.*}} @[[IFC]], i64 0, i64 4
     55     // PGOUSE: br {{.*}} !prof ![[IF4:[0-9]+]]
     56     } else if (i % 3) {
     57       // PGOGEN: store {{.*}} @[[IFC]], i64 0, i64 5
     58       // PGOUSE: br {{.*}} !prof ![[IF5:[0-9]+]]
     59       if (i) {}
     60     } else {
     61       // PGOGEN: store {{.*}} @[[IFC]], i64 0, i64 6
     62       // PGOUSE: br {{.*}} !prof ![[IF6:[0-9]+]]
     63       if (i) {}
     64     }
     65 
     66     // PGOGEN: store {{.*}} @[[IFC]], i64 0, i64 8
     67     // PGOGEN: store {{.*}} @[[IFC]], i64 0, i64 7
     68     // PGOUSE: br {{.*}} !prof ![[IF7:[0-9]+]]
     69     if (1 && i) {}
     70     // PGOGEN: store {{.*}} @[[IFC]], i64 0, i64 10
     71     // PGOGEN: store {{.*}} @[[IFC]], i64 0, i64 9
     72     // PGOUSE: br {{.*}} !prof ![[IF8:[0-9]+]]
     73     if (0 || i) {}
     74   }
     75 
     76   // PGOGEN-NOT: store {{.*}} @[[IFC]],
     77   // PGOUSE-NOT: br {{.*}} !prof ![0-9]+
     78 }
     79 
     80 // PGOGEN-LABEL: @early_exits()
     81 // PGOUSE-LABEL: @early_exits()
     82 // PGOGEN: store {{.*}} @[[EEC]], i64 0, i64 0
     83 void early_exits() {
     84   int i = 0;
     85 
     86   // PGOGEN: store {{.*}} @[[EEC]], i64 0, i64 1
     87   // PGOUSE: br {{.*}} !prof ![[EE1:[0-9]+]]
     88   if (i) {}
     89 
     90   // PGOGEN: store {{.*}} @[[EEC]], i64 0, i64 2
     91   // PGOUSE: br {{.*}} !prof ![[EE2:[0-9]+]]
     92   while (i < 100) {
     93     i++;
     94     // PGOGEN: store {{.*}} @[[EEC]], i64 0, i64 3
     95     // PGOUSE: br {{.*}} !prof ![[EE3:[0-9]+]]
     96     if (i > 50)
     97       break;
     98     // PGOGEN: store {{.*}} @[[EEC]], i64 0, i64 4
     99     // PGOUSE: br {{.*}} !prof ![[EE4:[0-9]+]]
    100     if (i % 2)
    101       continue;
    102   }
    103 
    104   // PGOGEN: store {{.*}} @[[EEC]], i64 0, i64 5
    105   // PGOUSE: br {{.*}} !prof ![[EE5:[0-9]+]]
    106   if (i) {}
    107 
    108   // PGOGEN: store {{.*}} @[[EEC]], i64 0, i64 6
    109   do {
    110     // PGOGEN: store {{.*}} @[[EEC]], i64 0, i64 7
    111     // PGOUSE: br {{.*}} !prof ![[EE6:[0-9]+]]
    112     if (i > 75)
    113       return;
    114     else
    115       i++;
    116   // PGOUSE: br {{.*}} !prof ![[EE7:[0-9]+]]
    117   } while (i < 100);
    118 
    119   // PGOGEN: store {{.*}} @[[EEC]], i64 0, i64 8
    120   // Never reached -> no weights
    121   if (i) {}
    122 
    123   // PGOGEN-NOT: store {{.*}} @[[EEC]],
    124   // PGOUSE-NOT: br {{.*}} !prof ![0-9]+
    125 }
    126 
    127 // PGOGEN-LABEL: @jumps()
    128 // PGOUSE-LABEL: @jumps()
    129 // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 0
    130 void jumps() {
    131   int i;
    132 
    133   // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 1
    134   // PGOUSE: br {{.*}} !prof ![[JM1:[0-9]+]]
    135   for (i = 0; i < 2; ++i) {
    136     goto outofloop;
    137     // Never reached -> no weights
    138     if (i) {}
    139   }
    140 // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 3
    141 outofloop:
    142   // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 4
    143   // PGOUSE: br {{.*}} !prof ![[JM2:[0-9]+]]
    144   if (i) {}
    145 
    146   goto loop1;
    147 
    148   // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 5
    149   // PGOUSE: br {{.*}} !prof ![[JM3:[0-9]+]]
    150   while (i) {
    151   // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 6
    152   loop1:
    153     // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 7
    154     // PGOUSE: br {{.*}} !prof ![[JM4:[0-9]+]]
    155     if (i) {}
    156   }
    157 
    158   goto loop2;
    159 // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 8
    160 first:
    161 // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 9
    162 second:
    163 // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 10
    164 third:
    165   i++;
    166   // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 11
    167   // PGOUSE: br {{.*}} !prof ![[JM5:[0-9]+]]
    168   if (i < 3)
    169     goto loop2;
    170 
    171   // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 12
    172   // PGOUSE: br {{.*}} !prof ![[JM6:[0-9]+]]
    173   while (i < 3) {
    174   // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 13
    175   loop2:
    176     // PGOUSE: switch {{.*}} [
    177     // PGOUSE: ], !prof ![[JM7:[0-9]+]]
    178     switch (i) {
    179     // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 15
    180     case 0:
    181       goto first;
    182     // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 16
    183     case 1:
    184       goto second;
    185     // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 17
    186     case 2:
    187       goto third;
    188     }
    189     // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 14
    190   }
    191 
    192   // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 18
    193   // PGOUSE: br {{.*}} !prof ![[JM8:[0-9]+]]
    194   for (i = 0; i < 10; ++i) {
    195     goto withinloop;
    196     // never reached -> no weights
    197     if (i) {}
    198   // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 20
    199   withinloop:
    200     // PGOGEN: store {{.*}} @[[JMC]], i64 0, i64 21
    201     // PGOUSE: br {{.*}} !prof ![[JM9:[0-9]+]]
    202     if (i) {}
    203   }
    204 
    205   // PGOGEN-NOT: store {{.*}} @[[JMC]],
    206   // PGOUSE-NOT: br {{.*}} !prof ![0-9]+
    207 }
    208 
    209 // PGOGEN-LABEL: @switches()
    210 // PGOUSE-LABEL: @switches()
    211 // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 0
    212 void switches() {
    213   static int weights[] = {1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5};
    214 
    215   // No cases -> no weights
    216   switch (weights[0]) {
    217   // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 2
    218   default:
    219     break;
    220   }
    221   // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 1
    222 
    223   // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 3
    224   // PGOUSE: br {{.*}} !prof ![[SW1:[0-9]+]]
    225   for (int i = 0, len = sizeof(weights) / sizeof(weights[0]); i < len; ++i) {
    226     // PGOUSE: switch {{.*}} [
    227     // PGOUSE: ], !prof ![[SW2:[0-9]+]]
    228     switch (i[weights]) {
    229     // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 5
    230     case 1:
    231       // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 6
    232       // PGOUSE: br {{.*}} !prof ![[SW3:[0-9]+]]
    233       if (i) {}
    234       // fallthrough
    235     // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 7
    236     case 2:
    237       // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 8
    238       // PGOUSE: br {{.*}} !prof ![[SW4:[0-9]+]]
    239       if (i) {}
    240       break;
    241     // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 9
    242     case 3:
    243       // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 10
    244       // PGOUSE: br {{.*}} !prof ![[SW5:[0-9]+]]
    245       if (i) {}
    246       continue;
    247     // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 11
    248     case 4:
    249       // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 12
    250       // PGOUSE: br {{.*}} !prof ![[SW6:[0-9]+]]
    251       if (i) {}
    252       // PGOUSE: switch {{.*}} [
    253       // PGOUSE: ], !prof ![[SW7:[0-9]+]]
    254       switch (i) {
    255       // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 14
    256       case 6 ... 9:
    257         // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 15
    258         // PGOUSE: br {{.*}} !prof ![[SW8:[0-9]+]]
    259         if (i) {}
    260         continue;
    261       }
    262       // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 13
    263 
    264     // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 16
    265     default:
    266       // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 17
    267       // PGOUSE: br {{.*}} !prof ![[SW9:[0-9]+]]
    268       if (i == len - 1)
    269         return;
    270     }
    271     // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 4
    272   }
    273 
    274   // PGOGEN: store {{.*}} @[[SWC]], i64 0, i64 18
    275   // Never reached -> no weights
    276   if (weights[0]) {}
    277 
    278   // PGOGEN-NOT: store {{.*}} @[[SWC]],
    279   // PGOUSE-NOT: br {{.*}} !prof ![0-9]+
    280 }
    281 
    282 // PGOGEN-LABEL: @big_switch()
    283 // PGOUSE-LABEL: @big_switch()
    284 // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 0
    285 void big_switch() {
    286   // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 1
    287   // PGOUSE: br {{.*}} !prof ![[BS1:[0-9]+]]
    288   for (int i = 0; i < 32; ++i) {
    289     // PGOUSE: switch {{.*}} [
    290     // PGOUSE: ], !prof ![[BS2:[0-9]+]]
    291     switch (1 << i) {
    292     // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 3
    293     case (1 << 0):
    294       // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 4
    295       // PGOUSE: br {{.*}} !prof ![[BS3:[0-9]+]]
    296       if (i) {}
    297       // fallthrough
    298     // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 5
    299     case (1 << 1):
    300       // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 6
    301       // PGOUSE: br {{.*}} !prof ![[BS4:[0-9]+]]
    302       if (i) {}
    303       break;
    304     // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 7
    305     case (1 << 2) ... (1 << 12):
    306       // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 8
    307       // PGOUSE: br {{.*}} !prof ![[BS5:[0-9]+]]
    308       if (i) {}
    309       break;
    310     // The branch for the large case range above appears after the case body
    311     // PGOUSE: br {{.*}} !prof ![[BS6:[0-9]+]]
    312 
    313     // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 9
    314     case (1 << 13):
    315       // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 10
    316       // PGOUSE: br {{.*}} !prof ![[BS7:[0-9]+]]
    317       if (i) {}
    318       break;
    319     // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 11
    320     case (1 << 14) ... (1 << 28):
    321       // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 12
    322       // PGOUSE: br {{.*}} !prof ![[BS8:[0-9]+]]
    323       if (i) {}
    324       break;
    325     // The branch for the large case range above appears after the case body
    326     // PGOUSE: br {{.*}} !prof ![[BS9:[0-9]+]]
    327 
    328     // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 13
    329     case (1 << 29) ... ((1 << 29) + 1):
    330       // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 14
    331       // PGOUSE: br {{.*}} !prof ![[BS10:[0-9]+]]
    332       if (i) {}
    333       break;
    334     // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 15
    335     default:
    336       // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 16
    337       // PGOUSE: br {{.*}} !prof ![[BS11:[0-9]+]]
    338       if (i) {}
    339       break;
    340     }
    341     // PGOGEN: store {{.*}} @[[BSC]], i64 0, i64 2
    342   }
    343 
    344   // PGOGEN-NOT: store {{.*}} @[[BSC]],
    345   // PGOUSE-NOT: br {{.*}} !prof ![0-9]+
    346   // PGOUSE: ret void
    347 }
    348 
    349 // PGOGEN-LABEL: @boolean_operators()
    350 // PGOUSE-LABEL: @boolean_operators()
    351 // PGOGEN: store {{.*}} @[[BOC]], i64 0, i64 0
    352 void boolean_operators() {
    353   int v;
    354   // PGOGEN: store {{.*}} @[[BOC]], i64 0, i64 1
    355   // PGOUSE: br {{.*}} !prof ![[BO1:[0-9]+]]
    356   for (int i = 0; i < 100; ++i) {
    357     // PGOGEN: store {{.*}} @[[BOC]], i64 0, i64 2
    358     // PGOUSE: br {{.*}} !prof ![[BO2:[0-9]+]]
    359     v = i % 3 || i;
    360 
    361     // PGOGEN: store {{.*}} @[[BOC]], i64 0, i64 3
    362     // PGOUSE: br {{.*}} !prof ![[BO3:[0-9]+]]
    363     v = i % 3 && i;
    364 
    365     // PGOGEN: store {{.*}} @[[BOC]], i64 0, i64 5
    366     // PGOGEN: store {{.*}} @[[BOC]], i64 0, i64 4
    367     // PGOUSE: br {{.*}} !prof ![[BO4:[0-9]+]]
    368     // PGOUSE: br {{.*}} !prof ![[BO5:[0-9]+]]
    369     v = i % 3 || i % 2 || i;
    370 
    371     // PGOGEN: store {{.*}} @[[BOC]], i64 0, i64 7
    372     // PGOGEN: store {{.*}} @[[BOC]], i64 0, i64 6
    373     // PGOUSE: br {{.*}} !prof ![[BO6:[0-9]+]]
    374     // PGOUSE: br {{.*}} !prof ![[BO7:[0-9]+]]
    375     v = i % 2 && i % 3 && i;
    376   }
    377 
    378   // PGOGEN-NOT: store {{.*}} @[[BOC]],
    379   // PGOUSE-NOT: br {{.*}} !prof ![0-9]+
    380 }
    381 
    382 // PGOGEN-LABEL: @boolop_loops()
    383 // PGOUSE-LABEL: @boolop_loops()
    384 // PGOGEN: store {{.*}} @[[BLC]], i64 0, i64 0
    385 void boolop_loops() {
    386   int i = 100;
    387 
    388   // PGOGEN: store {{.*}} @[[BLC]], i64 0, i64 2
    389   // PGOGEN: store {{.*}} @[[BLC]], i64 0, i64 1
    390   // PGOUSE: br {{.*}} !prof ![[BL1:[0-9]+]]
    391   // PGOUSE: br {{.*}} !prof ![[BL2:[0-9]+]]
    392   while (i && i > 50)
    393     i--;
    394 
    395   // PGOGEN: store {{.*}} @[[BLC]], i64 0, i64 4
    396   // PGOGEN: store {{.*}} @[[BLC]], i64 0, i64 3
    397   // PGOUSE: br {{.*}} !prof ![[BL3:[0-9]+]]
    398   // PGOUSE: br {{.*}} !prof ![[BL4:[0-9]+]]
    399   while ((i % 2) || (i > 0))
    400     i--;
    401 
    402   // PGOGEN: store {{.*}} @[[BLC]], i64 0, i64 6
    403   // PGOGEN: store {{.*}} @[[BLC]], i64 0, i64 5
    404   // PGOUSE: br {{.*}} !prof ![[BL5:[0-9]+]]
    405   // PGOUSE: br {{.*}} !prof ![[BL6:[0-9]+]]
    406   for (i = 100; i && i > 50; --i);
    407 
    408   // PGOGEN: store {{.*}} @[[BLC]], i64 0, i64 8
    409   // PGOGEN: store {{.*}} @[[BLC]], i64 0, i64 7
    410   // PGOUSE: br {{.*}} !prof ![[BL7:[0-9]+]]
    411   // PGOUSE: br {{.*}} !prof ![[BL8:[0-9]+]]
    412   for (; (i % 2) || (i > 0); --i);
    413 
    414   // PGOGEN-NOT: store {{.*}} @[[BLC]],
    415   // PGOUSE-NOT: br {{.*}} !prof ![0-9]+
    416 }
    417 
    418 // PGOGEN-LABEL: @conditional_operator()
    419 // PGOUSE-LABEL: @conditional_operator()
    420 // PGOGEN: store {{.*}} @[[COC]], i64 0, i64 0
    421 void conditional_operator() {
    422   int i = 100;
    423 
    424   // PGOGEN: store {{.*}} @[[COC]], i64 0, i64 1
    425   // PGOUSE: br {{.*}} !prof ![[CO1:[0-9]+]]
    426   int j = i < 50 ? i : 1;
    427 
    428   // PGOGEN: store {{.*}} @[[COC]], i64 0, i64 2
    429   // PGOUSE: br {{.*}} !prof ![[CO2:[0-9]+]]
    430   int k = i ?: 0;
    431 
    432   // PGOGEN-NOT: store {{.*}} @[[COC]],
    433   // PGOUSE-NOT: br {{.*}} !prof ![0-9]+
    434 }
    435 
    436 void do_fallthrough() {
    437   for (int i = 0; i < 10; ++i) {
    438     int j = 0;
    439     do {
    440       // The number of exits out of this do-loop via the break statement
    441       // exceeds the counter value for the loop (which does not include the
    442       // fallthrough count). Make sure that does not violate any assertions.
    443       if (i < 8) break;
    444       j++;
    445     } while (j < 2);
    446   }
    447 }
    448 
    449 // PGOGEN-LABEL: @static_func()
    450 // PGOUSE-LABEL: @static_func()
    451 // PGOGEN: store {{.*}} @[[STC]], i64 0, i64 0
    452 static void static_func() {
    453   // PGOGEN: store {{.*}} @[[STC]], i64 0, i64 1
    454   // PGOUSE: br {{.*}} !prof ![[ST1:[0-9]+]]
    455   for (int i = 0; i < 10; ++i) {
    456   }
    457 }
    458 
    459 // PGOUSE-DAG: ![[SL1]] = metadata !{metadata !"branch_weights", i32 101, i32 2}
    460 // PGOUSE-DAG: ![[SL2]] = metadata !{metadata !"branch_weights", i32 101, i32 2}
    461 // PGOUSE-DAG: ![[SL3]] = metadata !{metadata !"branch_weights", i32 76, i32 2}
    462 
    463 // PGOUSE-DAG: ![[EE1]] = metadata !{metadata !"branch_weights", i32 1, i32 2}
    464 // PGOUSE-DAG: ![[EE2]] = metadata !{metadata !"branch_weights", i32 52, i32 1}
    465 // PGOUSE-DAG: ![[EE3]] = metadata !{metadata !"branch_weights", i32 2, i32 51}
    466 // PGOUSE-DAG: ![[EE4]] = metadata !{metadata !"branch_weights", i32 26, i32 26}
    467 // PGOUSE-DAG: ![[EE5]] = metadata !{metadata !"branch_weights", i32 2, i32 1}
    468 // PGOUSE-DAG: ![[EE6]] = metadata !{metadata !"branch_weights", i32 2, i32 26}
    469 // PGOUSE-DAG: ![[EE7]] = metadata !{metadata !"branch_weights", i32 26, i32 1}
    470 
    471 // PGOUSE-DAG: ![[IF1]] = metadata !{metadata !"branch_weights", i32 101, i32 2}
    472 // PGOUSE-DAG: ![[IF2]] = metadata !{metadata !"branch_weights", i32 51, i32 51}
    473 // PGOUSE-DAG: ![[IF3]] = metadata !{metadata !"branch_weights", i32 51, i32 1}
    474 // PGOUSE-DAG: ![[IF4]] = metadata !{metadata !"branch_weights", i32 34, i32 18}
    475 // PGOUSE-DAG: ![[IF5]] = metadata !{metadata !"branch_weights", i32 34, i32 1}
    476 // PGOUSE-DAG: ![[IF6]] = metadata !{metadata !"branch_weights", i32 17, i32 2}
    477 // PGOUSE-DAG: ![[IF7]] = metadata !{metadata !"branch_weights", i32 100, i32 2}
    478 // PGOUSE-DAG: ![[IF8]] = metadata !{metadata !"branch_weights", i32 100, i32 2}
    479 
    480 // PGOUSE-DAG: ![[JM1]] = metadata !{metadata !"branch_weights", i32 2, i32 1}
    481 // PGOUSE-DAG: ![[JM2]] = metadata !{metadata !"branch_weights", i32 1, i32 2}
    482 // PGOUSE-DAG: ![[JM3]] = metadata !{metadata !"branch_weights", i32 1, i32 2}
    483 // PGOUSE-DAG: ![[JM4]] = metadata !{metadata !"branch_weights", i32 1, i32 2}
    484 // PGOUSE-DAG: ![[JM5]] = metadata !{metadata !"branch_weights", i32 3, i32 2}
    485 // PGOUSE-DAG: ![[JM6]] = metadata !{metadata !"branch_weights", i32 1, i32 2}
    486 // PGOUSE-DAG: ![[JM7]] = metadata !{metadata !"branch_weights", i32 1, i32 2, i32 2, i32 2}
    487 // PGOUSE-DAG: ![[JM8]] = metadata !{metadata !"branch_weights", i32 11, i32 2}
    488 // PGOUSE-DAG: ![[JM9]] = metadata !{metadata !"branch_weights", i32 10, i32 2}
    489 
    490 // PGOUSE-DAG: ![[SW1]] = metadata !{metadata !"branch_weights", i32 16, i32 1}
    491 // PGOUSE-DAG: ![[SW2]] = metadata !{metadata !"branch_weights", i32 6, i32 2, i32 3, i32 4, i32 5}
    492 // PGOUSE-DAG: ![[SW3]] = metadata !{metadata !"branch_weights", i32 1, i32 2}
    493 // PGOUSE-DAG: ![[SW4]] = metadata !{metadata !"branch_weights", i32 3, i32 2}
    494 // PGOUSE-DAG: ![[SW5]] = metadata !{metadata !"branch_weights", i32 4, i32 1}
    495 // PGOUSE-DAG: ![[SW6]] = metadata !{metadata !"branch_weights", i32 5, i32 1}
    496 // PGOUSE-DAG: ![[SW7]] = metadata !{metadata !"branch_weights", i32 1, i32 2, i32 2, i32 2, i32 2}
    497 // PGOUSE-DAG: ![[SW8]] = metadata !{metadata !"branch_weights", i32 5, i32 1}
    498 // PGOUSE-DAG: ![[SW9]] = metadata !{metadata !"branch_weights", i32 2, i32 5}
    499 
    500 // PGOUSE-DAG: ![[BS1]] = metadata !{metadata !"branch_weights", i32 33, i32 2}
    501 // PGOUSE-DAG: ![[BS2]] = metadata !{metadata !"branch_weights", i32 29, i32 2, i32 2, i32 2, i32 2, i32 1}
    502 // PGOUSE-DAG: ![[BS3]] = metadata !{metadata !"branch_weights", i32 1, i32 2}
    503 // PGOUSE-DAG: ![[BS4]] = metadata !{metadata !"branch_weights", i32 2, i32 2}
    504 // PGOUSE-DAG: ![[BS5]] = metadata !{metadata !"branch_weights", i32 12, i32 1}
    505 // PGOUSE-DAG: ![[BS6]] = metadata !{metadata !"branch_weights", i32 12, i32 3}
    506 // PGOUSE-DAG: ![[BS7]] = metadata !{metadata !"branch_weights", i32 2, i32 1}
    507 // PGOUSE-DAG: ![[BS8]] = metadata !{metadata !"branch_weights", i32 16, i32 1}
    508 // PGOUSE-DAG: ![[BS9]] = metadata !{metadata !"branch_weights", i32 16, i32 14}
    509 // PGOUSE-DAG: ![[BS10]] = metadata !{metadata !"branch_weights", i32 2, i32 1}
    510 // PGOUSE-DAG: ![[BS11]] = metadata !{metadata !"branch_weights", i32 3, i32 1}
    511 
    512 // PGOUSE-DAG: ![[BO1]] = metadata !{metadata !"branch_weights", i32 101, i32 2}
    513 // PGOUSE-DAG: ![[BO2]] = metadata !{metadata !"branch_weights", i32 67, i32 35}
    514 // PGOUSE-DAG: ![[BO3]] = metadata !{metadata !"branch_weights", i32 67, i32 35}
    515 // PGOUSE-DAG: ![[BO4]] = metadata !{metadata !"branch_weights", i32 67, i32 35}
    516 // PGOUSE-DAG: ![[BO5]] = metadata !{metadata !"branch_weights", i32 18, i32 18}
    517 // PGOUSE-DAG: ![[BO6]] = metadata !{metadata !"branch_weights", i32 51, i32 51}
    518 // PGOUSE-DAG: ![[BO7]] = metadata !{metadata !"branch_weights", i32 34, i32 18}
    519 // PGOUSE-DAG: ![[BL1]] = metadata !{metadata !"branch_weights", i32 52, i32 1}
    520 // PGOUSE-DAG: ![[BL2]] = metadata !{metadata !"branch_weights", i32 51, i32 2}
    521 // PGOUSE-DAG: ![[BL3]] = metadata !{metadata !"branch_weights", i32 26, i32 27}
    522 // PGOUSE-DAG: ![[BL4]] = metadata !{metadata !"branch_weights", i32 51, i32 2}
    523 // PGOUSE-DAG: ![[BL5]] = metadata !{metadata !"branch_weights", i32 52, i32 1}
    524 // PGOUSE-DAG: ![[BL6]] = metadata !{metadata !"branch_weights", i32 51, i32 2}
    525 // PGOUSE-DAG: ![[BL7]] = metadata !{metadata !"branch_weights", i32 26, i32 27}
    526 // PGOUSE-DAG: ![[BL8]] = metadata !{metadata !"branch_weights", i32 51, i32 2}
    527 // PGOUSE-DAG: ![[CO1]] = metadata !{metadata !"branch_weights", i32 1, i32 2}
    528 // PGOUSE-DAG: ![[CO2]] = metadata !{metadata !"branch_weights", i32 2, i32 1}
    529 // PGOUSE-DAG: ![[ST1]] = metadata !{metadata !"branch_weights", i32 11, i32 2}
    530 
    531 int main(int argc, const char *argv[]) {
    532   simple_loops();
    533   conditionals();
    534   early_exits();
    535   jumps();
    536   switches();
    537   big_switch();
    538   boolean_operators();
    539   boolop_loops();
    540   conditional_operator();
    541   do_fallthrough();
    542   static_func();
    543   return 0;
    544 }
    545