1 // Check that llvm-cov loads real coverage mapping data for a function 2 // even though dummy coverage data for that function comes first. 3 // Dummy coverage data is exported if the definition of an inline function 4 // is seen but the function is not used in the translation unit. 5 6 // If you need to rebuild the 'covmapping' file for this test, please use 7 // the following commands: 8 // clang++ -fprofile-instr-generate -fcoverage-mapping -o tmp -x c++ prefer_used_to_unused.h prefer_used_to_unused.cpp 9 // llvm-cov convert-for-testing -o prefer_used_to_unused.covmapping tmp 10 11 // RUN: llvm-profdata merge %S/Inputs/prefer_used_to_unused.proftext -o %t.profdata 12 // RUN: llvm-cov show %S/Inputs/prefer_used_to_unused.covmapping -instr-profile %t.profdata -filename-equivalence %s | FileCheck %s 13 14 // Coverage data for this function has a non-zero hash value if it is used in the translation unit. 15 inline int sampleFunc(int A) { // CHECK: 1| [[@LINE]]|inline int sampleFunc(int A) { 16 if (A > 0) // CHECK-NEXT: 1| [[@LINE]]| if (A > 0) 17 return A; // CHECK-NEXT: 1| [[@LINE]]| return A; 18 return 0; // CHECK-NEXT: 0| [[@LINE]]| return 0; 19 } // CHECK-NEXT: 1| [[@LINE]]|} 20 21 // The hash for this function is zero in both cases, either it is used in the translation unit or not. 22 inline int simpleFunc(int A) { // CHECK: 1| [[@LINE]]|inline int simpleFunc(int A) { 23 return A; // CHECK-NEXT: 1| [[@LINE]]| return A; 24 } // CHECK-NEXT: 1| [[@LINE]]|} 25
