compiler-rt/test/profile/Darwin/coverage-linkage.cpp

   1 /// Test instrumentation can handle various linkages.
   2 // RUN: %clang_profgen -fcoverage-mapping %s -o %t
   3 // RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
   4 // RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s
   5
   6 // RUN: %clang_profgen -fcoverage-mapping -Wl,-dead_strip %s -o %t
   7 // RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
   8 // RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s
   9
  10 // CHECK:      {{.*}}external{{.*}}:
  11 // CHECK-NEXT:    Hash:
  12 // CHECK-NEXT:    Counters: 1
  13 // CHECK-NEXT:    Function count: 1
  14 // CHECK:      {{.*}}weak{{.*}}:
  15 // CHECK-NEXT:    Hash:
  16 // CHECK-NEXT:    Counters: 1
  17 // CHECK-NEXT:    Function count: 1
  18 // CHECK:      main:
  19 // CHECK-NEXT:    Hash:
  20 // CHECK-NEXT:    Counters: 1
  21 // CHECK-NEXT:    Function count: 1
  22 // CHECK:      {{.*}}internal{{.*}}:
  23 // CHECK-NEXT:    Hash:
  24 // CHECK-NEXT:    Counters: 1
  25 // CHECK-NEXT:    Function count: 1
  26 // CHECK:      {{.*}}linkonce_odr{{.*}}:
  27 // CHECK-NEXT:    Hash:
  28 // CHECK-NEXT:    Counters: 1
  29 // CHECK-NEXT:    Function count: 1
  30
  31 #include <stdio.h>
  32
  33 void discarded0() {}
  34 __attribute__((weak)) void discarded1() {}
  35
  36 void external() { puts("external"); }
  37 __attribute__((weak)) void weak() { puts("weak"); }
  38 static void internal() { puts("internal"); }
  39 __attribute__((noinline)) inline void linkonce_odr() { puts("linkonce_odr"); }
  40
  41 int main() {
  42   internal();
  43   external();
  44   weak();
  45   linkonce_odr();
  46 }