cxx-class.cpp revision 651f13cea278ec967336033dd032faef0e9fc2ec 
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: %clang %s -o - -emit-llvm -S -fprofile-instr-use=%S/Inputs/cxx-class.profdata -fno-exceptions -target %itanium_abi_triple > %tuse
10// RUN: FileCheck --input-file=%tuse -check-prefix=CTRUSE %s
11// RUN: FileCheck --input-file=%tuse -check-prefix=DTRUSE %s
12// RUN: FileCheck --input-file=%tuse -check-prefix=MTHUSE %s
13// RUN: FileCheck --input-file=%tuse -check-prefix=WRPUSE %s
14
15class Simple {
16  int Member;
17public:
18  // CTRGEN-LABEL: define {{.*}} @_ZN6SimpleC2Ei(
19  // CTRUSE-LABEL: define {{.*}} @_ZN6SimpleC2Ei(
20  // CTRGEN: store {{.*}} @[[SCC:__llvm_profile_counters__ZN6SimpleC2Ei]], i64 0, i64 0
21  explicit Simple(int Member) : Member(Member) {
22    // CTRGEN: store {{.*}} @[[SCC]], i64 0, i64 1
23    // CTRUSE: br {{.*}} !prof ![[SC1:[0-9]+]]
24    if (Member) {}
25    // CTRGEN-NOT: store {{.*}} @[[SCC]],
26    // CTRUSE-NOT: br {{.*}} !prof ![0-9]+
27    // CTRUSE: ret
28  }
29  // CTRUSE: ![[SC1]] = metadata !{metadata !"branch_weights", i32 100, i32 2}
30
31  // DTRGEN-LABEL: define {{.*}} @_ZN6SimpleD2Ev(
32  // DTRUSE-LABEL: define {{.*}} @_ZN6SimpleD2Ev(
33  // DTRGEN: store {{.*}} @[[SDC:__llvm_profile_counters__ZN6SimpleD2Ev]], i64 0, i64 0
34  ~Simple() {
35    // DTRGEN: store {{.*}} @[[SDC]], i64 0, i64 1
36    // DTRUSE: br {{.*}} !prof ![[SD1:[0-9]+]]
37    if (Member) {}
38    // DTRGEN-NOT: store {{.*}} @[[SDC]],
39    // DTRUSE-NOT: br {{.*}} !prof ![0-9]+
40    // DTRUSE: ret
41  }
42  // DTRUSE: ![[SD1]] = metadata !{metadata !"branch_weights", i32 100, i32 2}
43
44  // MTHGEN-LABEL: define {{.*}} @_ZN6Simple6methodEv(
45  // MTHUSE-LABEL: define {{.*}} @_ZN6Simple6methodEv(
46  // MTHGEN: store {{.*}} @[[SMC:__llvm_profile_counters__ZN6Simple6methodEv]], i64 0, i64 0
47  void method() {
48    // MTHGEN: store {{.*}} @[[SMC]], i64 0, i64 1
49    // MTHUSE: br {{.*}} !prof ![[SM1:[0-9]+]]
50    if (Member) {}
51    // MTHGEN-NOT: store {{.*}} @[[SMC]],
52    // MTHUSE-NOT: br {{.*}} !prof ![0-9]+
53    // MTHUSE: ret
54  }
55  // MTHUSE: ![[SM1]] = metadata !{metadata !"branch_weights", i32 100, i32 2}
56};
57
58// WRPGEN-LABEL: define {{.*}} @_Z14simple_wrapperv(
59// WRPUSE-LABEL: define {{.*}} @_Z14simple_wrapperv(
60// WRPGEN: store {{.*}} @[[SWC:__llvm_profile_counters__Z14simple_wrapperv]], i64 0, i64 0
61void simple_wrapper() {
62  // WRPGEN: store {{.*}} @[[SWC]], i64 0, i64 1
63  // WRPUSE: br {{.*}} !prof ![[SW1:[0-9]+]]
64  for (int I = 0; I < 100; ++I) {
65    Simple S(I);
66    S.method();
67  }
68  // WRPGEN-NOT: store {{.*}} @[[SWC]],
69  // WRPUSE-NOT: br {{.*}} !prof ![0-9]+
70  // WRPUSE: ret
71}
72// WRPUSE: ![[SW1]] = metadata !{metadata !"branch_weights", i32 101, i32 2}
73
74int main(int argc, const char *argv[]) {
75  simple_wrapper();
76  return 0;
77}
78