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flounderK/gist:de6bce77ea4bea357eff227542eae65b

Created April 11, 2025 02:53
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gather code coverage with clang
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gistfile1.txt
clang -fprofile-instr-generate -fcoverage-mapping -o main main.c
LLVM_PROFILE_FILE="prof.profraw" ./main
# merge many profraw files into a profdata
llvm-profdata merge -sparse prof.profraw -o prof.profdata
# show coverage
llvm-cov show ./main -instr-profile=prof.profdata
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