1 // Tests for instrumentation of templated code. Each instantiation of a template
2 // should be instrumented separately.
3
4 // RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-templates.cpp -std=c++11 -o - -emit-llvm -fprofile-instr-generate > %tgen
5 // RUN: FileCheck --input-file=%tgen -check-prefix=T0GEN -check-prefix=ALL %s
6 // RUN: FileCheck --input-file=%tgen -check-prefix=T100GEN -check-prefix=ALL %s
7
8 // RUN: llvm-profdata merge %S/Inputs/cxx-templates.proftext -o %t.profdata
9 // RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-templates.cpp -std=c++11 -o - -emit-llvm -fprofile-instr-use=%t.profdata > %tuse
10 // RUN: FileCheck --input-file=%tuse -check-prefix=T0USE -check-prefix=ALL %s
11 // RUN: FileCheck --input-file=%tuse -check-prefix=T100USE -check-prefix=ALL %s
12
13 // T0GEN: @[[T0C:__llvm_profile_counters__Z4loopILj0EEvv]] = linkonce_odr hidden global [2 x i64] zeroinitializer
14 // T100GEN: @[[T100C:__llvm_profile_counters__Z4loopILj100EEvv]] = linkonce_odr hidden global [2 x i64] zeroinitializer
15
16 // T0GEN-LABEL: define linkonce_odr void @_Z4loopILj0EEvv()
17 // T0USE-LABEL: define linkonce_odr void @_Z4loopILj0EEvv()
18 // T100GEN-LABEL: define linkonce_odr void @_Z4loopILj100EEvv()
19 // T100USE-LABEL: define linkonce_odr void @_Z4loopILj100EEvv()
loop()20 template <unsigned N> void loop() {
21 // ALL-NOT: ret
22 // T0GEN: store {{.*}} @[[T0C]], i64 0, i64 0
23 // T100GEN: store {{.*}} @[[T100C]], i64 0, i64 0
24
25 // ALL-NOT: ret
26 // T0GEN: store {{.*}} @[[T0C]], i64 0, i64 1
27 // T0USE: br {{.*}} !prof ![[T01:[0-9]+]]
28 // T100GEN: store {{.*}} @[[T100C]], i64 0, i64 1
29 // T100USE: br {{.*}} !prof ![[T1001:[0-9]+]]
30 for (unsigned I = 0; I < N; ++I) {}
31
32 // ALL: ret
33 }
34
35 // T0USE-DAG: ![[T01]] = !{!"branch_weights", i32 1, i32 2}
36 // T100USE-DAG: ![[T1001]] = !{!"branch_weights", i32 101, i32 2}
37
main(int argc,const char * argv[])38 int main(int argc, const char *argv[]) {
39 loop<0>();
40 loop<100>();
41 return 0;
42 }
43