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