60 lines · cpp
1// Tests for instrumentation of C++11 lambdas2 3// RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-lambda.cpp -std=c++11 -o - -emit-llvm -fprofile-instrument=clang > %tgen4// RUN: FileCheck -allow-deprecated-dag-overlap --input-file=%tgen -check-prefix=PGOGEN %s5// RUN: FileCheck -allow-deprecated-dag-overlap --input-file=%tgen -check-prefix=LMBGEN %s6 7// RUN: llvm-profdata merge %S/Inputs/cxx-lambda.proftext -o %t.profdata8// RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-lambda.cpp -std=c++11 -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata > %tuse9// RUN: FileCheck -allow-deprecated-dag-overlap --input-file=%tuse -check-prefix=PGOUSE %s10// RUN: FileCheck -allow-deprecated-dag-overlap --input-file=%tuse -check-prefix=LMBUSE %s11 12// PGOGEN: @[[LWC:__profc__Z7lambdasv]] = {{(private|internal)}} global [4 x i64] zeroinitializer13// PGOGEN: @[[MAC:__profc_main]] = {{(private|internal)}} global [1 x i64] zeroinitializer14// LMBGEN: @[[LFC:"__profc_cxx_lambda.cpp__ZZ7lambdasvENK3\$_0clEi"]] = {{(private|internal)}} global [4 x i64] zeroinitializer15 16// PGOGEN-LABEL: define {{.*}}void @_Z7lambdasv()17// PGOUSE-LABEL: define {{.*}}void @_Z7lambdasv()18// PGOGEN: store {{.*}} @[[LWC]]19void lambdas() {20 int i = 1;21 22 // LMBGEN-LABEL: define internal{{( [0-9_a-z]*cc)?( noundef)?( zeroext)?}} i1 @"_ZZ7lambdasvENK3$_0clEi"(23 // LMBUSE-LABEL: define internal{{( [0-9_a-z]*cc)?( noundef)?( zeroext)?}} i1 @"_ZZ7lambdasvENK3$_0clEi"(24 // LMBGEN: store {{.*}} @[[LFC]]25 auto f = [&i](int k) {26 // LMBGEN: store {{.*}} @[[LFC]], i32 0, i32 127 // LMBUSE: br {{.*}} !prof ![[LF1:[0-9]+]]28 if (i > 0) {29 }30 // LMBGEN: store {{.*}} @[[LFC]], i32 0, i32 231 // LMBUSE: br {{.*}} !prof ![[LF2:[0-9]+]]32 return k && i;33 };34 35 // PGOGEN: store {{.*}} @[[LWC]], i32 0, i32 136 // PGOUSE: br {{.*}} !prof ![[LW1:[0-9]+]]37 if (i) {}38 39 // PGOGEN: store {{.*}} @[[LWC]], i32 0, i32 240 // PGOUSE: br {{.*}} !prof ![[LW2:[0-9]+]]41 for (i = 0; i < 10; ++i)42 f(9 - i);43 44 // PGOGEN: store {{.*}} @[[LWC]], i32 0, i32 345 // PGOUSE: br {{.*}} !prof ![[LW3:[0-9]+]]46 if (i) {}47}48 49// PGOUSE-DAG: ![[LW1]] = !{!"branch_weights", i32 2, i32 1}50// PGOUSE-DAG: ![[LW2]] = !{!"branch_weights", i32 11, i32 2}51// PGOUSE-DAG: ![[LW3]] = !{!"branch_weights", i32 2, i32 1}52 53// LMBUSE-DAG: ![[LF1]] = !{!"branch_weights", i32 10, i32 2}54// LMBUSE-DAG: ![[LF2]] = !{!"branch_weights", i32 10, i32 2}55 56int main(int argc, const char *argv[]) {57 lambdas();58 return 0;59}60