clang/test/Profile/cxx-class.cpp

   1 // Tests for instrumentation of C++ methods, constructors, and destructors.
   2
   3 // RUN: %clang_cc1 %s -o - -emit-llvm -fprofile-instrument=clang -triple %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 // RUN: FileCheck --input-file=%tgen -check-prefix=VCTRGEN %s
   9 // RUN: FileCheck --input-file=%tgen -check-prefix=VDTRGEN %s
  10
  11 // RUN: llvm-profdata merge %S/Inputs/cxx-class.proftext -o %t.profdata
  12 // RUN: %clang_cc1 %s -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -triple %itanium_abi_triple > %tuse
  13 // RUN: FileCheck --input-file=%tuse -check-prefix=CTRUSE %s
  14 // RUN: FileCheck --input-file=%tuse -check-prefix=DTRUSE %s
  15 // RUN: FileCheck --input-file=%tuse -check-prefix=MTHUSE %s
  16 // RUN: FileCheck --input-file=%tuse -check-prefix=WRPUSE %s
  17 // RUN: FileCheck --input-file=%tuse -check-prefix=VCTRUSE %s
  18 // RUN: FileCheck --input-file=%tuse -check-prefix=VDTRUSE %s
  19
  20 class Simple {
  21 public:
  22   int Member;
  23   // CTRGEN-LABEL: define {{.*}} @_ZN6SimpleC2Ei(
  24   // CTRUSE-LABEL: define {{.*}} @_ZN6SimpleC2Ei(
  25   // CTRGEN: store {{.*}} @[[SCC:__profc__ZN6SimpleC2Ei]]
  26   explicit Simple(int Member) : Member(Member) {
  27     // CTRGEN: store {{.*}} @[[SCC]], i32 0, i32 1
  28     // CTRUSE: br {{.*}} !prof ![[SC1:[0-9]+]]
  29     if (Member) {}
  30     // CTRGEN-NOT: store {{.*}} @[[SCC]],
  31     // CTRUSE-NOT: br {{.*}} !prof ![0-9]+
  32     // CTRUSE: ret
  33   }
  34   // CTRUSE: ![[SC1]] = !{!"branch_weights", i32 100, i32 2}
  35
  36   // DTRGEN-LABEL: define {{.*}} @_ZN6SimpleD2Ev(
  37   // DTRUSE-LABEL: define {{.*}} @_ZN6SimpleD2Ev(
  38   // DTRGEN: store {{.*}} @[[SDC:__profc__ZN6SimpleD2Ev]]
  39   ~Simple() {
  40     // DTRGEN: store {{.*}} @[[SDC]], i32 0, i32 1
  41     // DTRUSE: br {{.*}} !prof ![[SD1:[0-9]+]]
  42     if (Member) {}
  43     // DTRGEN-NOT: store {{.*}} @[[SDC]],
  44     // DTRUSE-NOT: br {{.*}} !prof ![0-9]+
  45     // DTRUSE: ret
  46   }
  47   // DTRUSE: ![[SD1]] = !{!"branch_weights", i32 100, i32 2}
  48
  49   // MTHGEN-LABEL: define {{.*}} @_ZN6Simple6methodEv(
  50   // MTHUSE-LABEL: define {{.*}} @_ZN6Simple6methodEv(
  51   // MTHGEN: store {{.*}} @[[SMC:__profc__ZN6Simple6methodEv]]
  52   void method() {
  53     // MTHGEN: store {{.*}} @[[SMC]], i32 0, i32 1
  54     // MTHUSE: br {{.*}} !prof ![[SM1:[0-9]+]]
  55     if (Member) {}
  56     // MTHGEN-NOT: store {{.*}} @[[SMC]],
  57     // MTHUSE-NOT: br {{.*}} !prof ![0-9]+
  58     // MTHUSE: ret
  59   }
  60   // MTHUSE: ![[SM1]] = !{!"branch_weights", i32 100, i32 2}
  61 };
  62
  63 class Derived : virtual public Simple {
  64 public:
  65   // VCTRGEN-LABEL: define {{.*}} @_ZN7DerivedC1Ev(
  66   // VCTRUSE-LABEL: define {{.*}} @_ZN7DerivedC1Ev(
  67   // VCTRGEN: store {{.*}} @[[SCC:__profc__ZN7DerivedC1Ev]]
  68   Derived() : Simple(0) {
  69     // VCTRGEN: store {{.*}} @[[SCC]], i32 0, i32 1
  70     // VCTRUSE: br {{.*}} !prof ![[SC1:[0-9]+]]
  71     if (Member) {}
  72     // VCTRGEN-NOT: store {{.*}} @[[SCC]],
  73     // VCTRUSE-NOT: br {{.*}} !prof ![0-9]+
  74     // VCTRUSE: ret
  75   }
  76   // VCTRUSE: ![[SC1]] = !{!"branch_weights", i32 100, i32 2}
  77
  78   // VDTRGEN-LABEL: define {{.*}} @_ZN7DerivedD2Ev(
  79   // VDTRUSE-LABEL: define {{.*}} @_ZN7DerivedD2Ev(
  80   // VDTRGEN: store {{.*}} @[[SDC:__profc__ZN7DerivedD2Ev]]
  81   ~Derived() {
  82     // VDTRGEN: store {{.*}} @[[SDC]], i32 0, i32 1
  83     // VDTRUSE: br {{.*}} !prof ![[SD1:[0-9]+]]
  84     if (Member) {}
  85     // VDTRGEN-NOT: store {{.*}} @[[SDC]],
  86     // VDTRUSE-NOT: br {{.*}} !prof ![0-9]+
  87     // VDTRUSE: ret
  88   }
  89   // VDTRUSE: ![[SD1]] = !{!"branch_weights", i32 100, i32 2}
  90 };
  91
  92 // WRPGEN-LABEL: define {{.*}} @_Z14simple_wrapperv(
  93 // WRPUSE-LABEL: define {{.*}} @_Z14simple_wrapperv(
  94 // WRPGEN: store {{.*}} @[[SWC:__profc__Z14simple_wrapperv]]
  95 void simple_wrapper() {
  96   // WRPGEN: store {{.*}} @[[SWC]], i32 0, i32 1
  97   // WRPUSE: br {{.*}} !prof ![[SW1:[0-9]+]]
  98   for (int I = 0; I < 100; ++I) {
  99     Derived d;
 100     Simple S(I);
 101     S.method();
 102   }
 103   // WRPGEN-NOT: store {{.*}} @[[SWC]],
 104   // WRPUSE-NOT: br {{.*}} !prof ![0-9]+
 105   // WRPUSE: ret
 106 }
 107 // WRPUSE: ![[SW1]] = !{!"branch_weights", i32 101, i32 2}
 108
 109 int main(int argc, const char *argv[]) {
 110   simple_wrapper();
 111   return 0;
 112 }