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

   1 /// Test instrumentation can handle various linkages.
   2 // REQUIRES: lld-available
   3
   4 // FIXME: Investigate and fix.
   5 // XFAIL: powerpc64-target-arch
   6
   7 // RUN: %clang_profgen -fcoverage-mapping %s -o %t
   8 // RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
   9 // RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s
  10
  11 // RUN: %clang_profgen -fcoverage-mapping -ffunction-sections -fuse-ld=lld -Wl,--gc-sections %s -o %t
  12 // RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
  13 // RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s
  14
  15 // CHECK:      {{.*}}external{{.*}}:
  16 // CHECK-NEXT:    Hash:
  17 // CHECK-NEXT:    Counters: 1
  18 // CHECK-NEXT:    Function count: 1
  19 // CHECK:      {{.*}}weak{{.*}}:
  20 // CHECK-NEXT:    Hash:
  21 // CHECK-NEXT:    Counters: 1
  22 // CHECK-NEXT:    Function count: 1
  23 // CHECK:      main:
  24 // CHECK-NEXT:    Hash:
  25 // CHECK-NEXT:    Counters: 1
  26 // CHECK-NEXT:    Function count: 1
  27 // CHECK:      {{.*}}internal{{.*}}:
  28 // CHECK-NEXT:    Hash:
  29 // CHECK-NEXT:    Counters: 1
  30 // CHECK-NEXT:    Function count: 1
  31 // CHECK:      {{.*}}linkonce_odr{{.*}}:
  32 // CHECK-NEXT:    Hash:
  33 // CHECK-NEXT:    Counters: 1
  34 // CHECK-NEXT:    Function count: 1
  35
  36 #include <stdio.h>
  37
  38 void discarded0() {}
  39 __attribute__((weak)) void discarded1() {}
  40
  41 void external() { puts("external"); }
  42 __attribute__((weak)) void weak() { puts("weak"); }
  43 static void internal() { puts("internal"); }
  44 __attribute__((noinline)) inline void linkonce_odr() { puts("linkonce_odr"); }
  45
  46 int main() {
  47   internal();
  48   external();
  49   weak();
  50   linkonce_odr();
  51 }