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-instrument=clang > %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-instrument-use-path=%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 // The linkage can be target dependent, so accept all linkage here,
14 // the linkage tests for different target are in llvm/test/Instrumentation/InstrProfiling/profiling.ll
15 // T0GEN: @[[T0C:__profc__Z4loopILj0EEvv]] = {{.*}} global [2 x i64] zeroinitializer
16 // T100GEN: @[[T100C:__profc__Z4loopILj100EEvv]] = {{.*}} global [2 x i64] zeroinitializer
17
18 // T0GEN-LABEL: define linkonce_odr {{.*}}void @_Z4loopILj0EEvv()
19 // T0USE-LABEL: define linkonce_odr {{.*}}void @_Z4loopILj0EEvv()
20 // T100GEN-LABEL: define linkonce_odr {{.*}}void @_Z4loopILj100EEvv()
21 // T100USE-LABEL: define linkonce_odr {{.*}}void @_Z4loopILj100EEvv()
loop()22 template <unsigned N> void loop() {
23 // ALL-NOT: ret
24 // T0GEN: store {{.*}} @[[T0C]]
25 // T100GEN: store {{.*}} @[[T100C]]
26
27 // ALL-NOT: ret
28 // T0GEN: store {{.*}} @[[T0C]], i32 0, i32 1
29 // T0USE: br {{.*}} !prof ![[T01:[0-9]+]]
30 // T100GEN: store {{.*}} @[[T100C]], i32 0, i32 1
31 // T100USE: br {{.*}} !prof ![[T1001:[0-9]+]]
32 for (unsigned I = 0; I < N; ++I) {}
33
34 // ALL: ret
35 }
36
37 // T0USE-DAG: ![[T01]] = !{!"branch_weights", i32 1, i32 2}
38 // T100USE-DAG: ![[T1001]] = !{!"branch_weights", i32 101, i32 2}
39
main(int argc,const char * argv[])40 int main(int argc, const char *argv[]) {
41 loop<0>();
42 loop<100>();
43 return 0;
44 }
45