external/bsd/llvm/dist/clang/test/Profile/cxx-class.cpp

   1 // Tests for instrumentation of C++ methods, constructors, and destructors.
   2
   3 // RUN: %clang %s -o - -emit-llvm -S -fprofile-instr-generate -fno-exceptions -target %itanium_abi_triple > %tgen
   4 // RUN: FileCheck --input-file=%tgen -check-prefix=CTRGEN %s
   5 // RUN: FileCheck --input-file=%tgen -check-prefix=DTRGEN %s
   6 // RUN: FileCheck --input-file=%tgen -check-prefix=MTHGEN %s
   7 // RUN: FileCheck --input-file=%tgen -check-prefix=WRPGEN %s
   8
   9 // RUN: llvm-profdata merge %S/Inputs/cxx-class.proftext -o %t.profdata
  10 // RUN: %clang %s -o - -emit-llvm -S -fprofile-instr-use=%t.profdata -fno-exceptions -target %itanium_abi_triple > %tuse
  11 // RUN: FileCheck --input-file=%tuse -check-prefix=CTRUSE %s
  12 // RUN: FileCheck --input-file=%tuse -check-prefix=DTRUSE %s
  13 // RUN: FileCheck --input-file=%tuse -check-prefix=MTHUSE %s
  14 // RUN: FileCheck --input-file=%tuse -check-prefix=WRPUSE %s
  15
  16 class Simple {
  17   int Member;
  18 public:
  19   // CTRGEN-LABEL: define {{.*}} @_ZN6SimpleC2Ei(
  20   // CTRUSE-LABEL: define {{.*}} @_ZN6SimpleC2Ei(
  21   // CTRGEN: store {{.*}} @[[SCC:__llvm_profile_counters__ZN6SimpleC2Ei]], i64 0, i64 0
  22   explicit Simple(int Member) : Member(Member) {
  23     // CTRGEN: store {{.*}} @[[SCC]], i64 0, i64 1
  24     // CTRUSE: br {{.*}} !prof ![[SC1:[0-9]+]]
  25     if (Member) {}
  26     // CTRGEN-NOT: store {{.*}} @[[SCC]],
  27     // CTRUSE-NOT: br {{.*}} !prof ![0-9]+
  28     // CTRUSE: ret
  29   }
  30   // CTRUSE: ![[SC1]] = !{!"branch_weights", i32 100, i32 2}
  31
  32   // DTRGEN-LABEL: define {{.*}} @_ZN6SimpleD2Ev(
  33   // DTRUSE-LABEL: define {{.*}} @_ZN6SimpleD2Ev(
  34   // DTRGEN: store {{.*}} @[[SDC:__llvm_profile_counters__ZN6SimpleD2Ev]], i64 0, i64 0
  35   ~Simple() {
  36     // DTRGEN: store {{.*}} @[[SDC]], i64 0, i64 1
  37     // DTRUSE: br {{.*}} !prof ![[SD1:[0-9]+]]
  38     if (Member) {}
  39     // DTRGEN-NOT: store {{.*}} @[[SDC]],
  40     // DTRUSE-NOT: br {{.*}} !prof ![0-9]+
  41     // DTRUSE: ret
  42   }
  43   // DTRUSE: ![[SD1]] = !{!"branch_weights", i32 100, i32 2}
  44
  45   // MTHGEN-LABEL: define {{.*}} @_ZN6Simple6methodEv(
  46   // MTHUSE-LABEL: define {{.*}} @_ZN6Simple6methodEv(
  47   // MTHGEN: store {{.*}} @[[SMC:__llvm_profile_counters__ZN6Simple6methodEv]], i64 0, i64 0
  48   void method() {
  49     // MTHGEN: store {{.*}} @[[SMC]], i64 0, i64 1
  50     // MTHUSE: br {{.*}} !prof ![[SM1:[0-9]+]]
  51     if (Member) {}
  52     // MTHGEN-NOT: store {{.*}} @[[SMC]],
  53     // MTHUSE-NOT: br {{.*}} !prof ![0-9]+
  54     // MTHUSE: ret
  55   }
  56   // MTHUSE: ![[SM1]] = !{!"branch_weights", i32 100, i32 2}
  57 };
  58
  59 // WRPGEN-LABEL: define {{.*}} @_Z14simple_wrapperv(
  60 // WRPUSE-LABEL: define {{.*}} @_Z14simple_wrapperv(
  61 // WRPGEN: store {{.*}} @[[SWC:__llvm_profile_counters__Z14simple_wrapperv]], i64 0, i64 0
  62 void simple_wrapper() {
  63   // WRPGEN: store {{.*}} @[[SWC]], i64 0, i64 1
  64   // WRPUSE: br {{.*}} !prof ![[SW1:[0-9]+]]
  65   for (int I = 0; I < 100; ++I) {
  66     Simple S(I);
  67     S.method();
  68   }
  69   // WRPGEN-NOT: store {{.*}} @[[SWC]],
  70   // WRPUSE-NOT: br {{.*}} !prof ![0-9]+
  71   // WRPUSE: ret
  72 }
  73 // WRPUSE: ![[SW1]] = !{!"branch_weights", i32 101, i32 2}
  74
  75 int main(int argc, const char *argv[]) {
  76   simple_wrapper();
  77   return 0;
  78 }