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// Tests for instrumentation of templated code. Each instantiation of a template
// should be instrumented separately.
// 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
// RUN: FileCheck --input-file=%tgen -check-prefix=T0GEN -check-prefix=ALL %s
// RUN: FileCheck --input-file=%tgen -check-prefix=T100GEN -check-prefix=ALL %s
// RUN: llvm-profdata merge %S/Inputs/cxx-templates.proftext -o %t.profdata
// 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
// RUN: FileCheck --input-file=%tuse -check-prefix=T0USE -check-prefix=ALL %s
// RUN: FileCheck --input-file=%tuse -check-prefix=T100USE -check-prefix=ALL %s
// T0GEN: @[[T0C:__llvm_profile_counters__Z4loopILj0EEvv]] = linkonce_odr hidden global [2 x i64] zeroinitializer
// T100GEN: @[[T100C:__llvm_profile_counters__Z4loopILj100EEvv]] = linkonce_odr hidden global [2 x i64] zeroinitializer
// T0GEN-LABEL: define linkonce_odr {{.*}}void @_Z4loopILj0EEvv()
// T0USE-LABEL: define linkonce_odr {{.*}}void @_Z4loopILj0EEvv()
// T100GEN-LABEL: define linkonce_odr {{.*}}void @_Z4loopILj100EEvv()
// T100USE-LABEL: define linkonce_odr {{.*}}void @_Z4loopILj100EEvv()
template <unsigned N> void loop() {
// ALL-NOT: ret
// T0GEN: store {{.*}} @[[T0C]], i64 0, i64 0
// T100GEN: store {{.*}} @[[T100C]], i64 0, i64 0
// ALL-NOT: ret
// T0GEN: store {{.*}} @[[T0C]], i64 0, i64 1
// T0USE: br {{.*}} !prof ![[T01:[0-9]+]]
// T100GEN: store {{.*}} @[[T100C]], i64 0, i64 1
// T100USE: br {{.*}} !prof ![[T1001:[0-9]+]]
for (unsigned I = 0; I < N; ++I) {}
// ALL: ret
}
// T0USE-DAG: ![[T01]] = !{!"branch_weights", i32 1, i32 2}
// T100USE-DAG: ![[T1001]] = !{!"branch_weights", i32 101, i32 2}
int main(int argc, const char *argv[]) {
loop<0>();
loop<100>();
return 0;
}
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