1 // Tests for instrumentation of C++11 lambdas 2 3 // RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-lambda.cpp -std=c++11 -o - -emit-llvm -fprofile-instr-generate > %tgen 4 // RUN: FileCheck --input-file=%tgen -check-prefix=PGOGEN %s 5 // RUN: FileCheck --input-file=%tgen -check-prefix=LMBGEN %s 6 7 // RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-lambda.cpp -std=c++11 -o - -emit-llvm -fprofile-instr-use=%S/Inputs/cxx-lambda.profdata > %tuse 8 // RUN: FileCheck --input-file=%tuse -check-prefix=PGOUSE %s 9 // RUN: FileCheck --input-file=%tuse -check-prefix=LMBUSE %s 10 11 // PGOGEN: @[[LWC:__llvm_profile_counters__Z7lambdasv]] = global [4 x i64] zeroinitializer 12 // PGOGEN: @[[MAC:__llvm_profile_counters_main]] = global [1 x i64] zeroinitializer 13 // LMBGEN: @[[LFC:"__llvm_profile_counters__ZZ7lambdasvENK3\$_0clEi"]] = internal global [3 x i64] zeroinitializer 14 15 // PGOGEN-LABEL: define void @_Z7lambdasv() 16 // PGOUSE-LABEL: define void @_Z7lambdasv() 17 // PGOGEN: store {{.*}} @[[LWC]], i64 0, i64 0 18 void lambdas() { 19 int i = 1; 20 21 // LMBGEN-LABEL: define internal zeroext i1 @"_ZZ7lambdasvENK3$_0clEi"( 22 // LMBUSE-LABEL: define internal zeroext i1 @"_ZZ7lambdasvENK3$_0clEi"( 23 // LMBGEN: store {{.*}} @[[LFC]], i64 0, i64 0 24 auto f = [&i](int k) { 25 // LMBGEN: store {{.*}} @[[LFC]], i64 0, i64 1 26 // LMBUSE: br {{.*}} !prof ![[LF1:[0-9]+]] 27 if (i > 0) {} 28 // LMBGEN: store {{.*}} @[[LFC]], i64 0, i64 2 29 // LMBUSE: br {{.*}} !prof ![[LF2:[0-9]+]] 30 return k && i; 31 }; 32 33 // PGOGEN: store {{.*}} @[[LWC]], i64 0, i64 1 34 // PGOUSE: br {{.*}} !prof ![[LW1:[0-9]+]] 35 if (i) {} 36 37 // PGOGEN: store {{.*}} @[[LWC]], i64 0, i64 2 38 // PGOUSE: br {{.*}} !prof ![[LW2:[0-9]+]] 39 for (i = 0; i < 10; ++i) 40 f(9 - i); 41 42 // PGOGEN: store {{.*}} @[[LWC]], i64 0, i64 3 43 // PGOUSE: br {{.*}} !prof ![[LW3:[0-9]+]] 44 if (i) {} 45 } 46 47 // PGOUSE-DAG: ![[LW1]] = metadata !{metadata !"branch_weights", i32 2, i32 1} 48 // PGOUSE-DAG: ![[LW2]] = metadata !{metadata !"branch_weights", i32 11, i32 2} 49 // PGOUSE-DAG: ![[LW3]] = metadata !{metadata !"branch_weights", i32 2, i32 1} 50 51 // LMBUSE-DAG: ![[LF1]] = metadata !{metadata !"branch_weights", i32 10, i32 2} 52 // LMBUSE-DAG: ![[LF2]] = metadata !{metadata !"branch_weights", i32 10, i32 2} 53 54 int main(int argc, const char *argv[]) { 55 lambdas(); 56 return 0; 57 } 58