llvm-project/compiler-rt/test/fuzzer/bcmp.test

UNSUPPORTED: darwin, freebsd, windows
RUN: %cpp_compiler -DMEMCMP=bcmp %S/MemcmpTest.cpp -o %t
RUN: not %run %t -seed=1 -runs=10000000 2>&1 | FileCheck %s
CHECK: BINGO
[compiler-rt][fuzzer] Disable bcmp.test on darwin It broke one of the buildbots: http://lab.llvm.org:8080/green/job/clang-stage1-RA/13026/console 2020-07-25 04:54:17 +08:00			`UNSUPPORTED: darwin, freebsd, windows`
[libFuzzer] Instrument bcmp If we define memcmp in an archive, bcmp should be defined as well (many libc define bcmp/memcmp in one object file). Otherwise if the application calls bcmp or strcmp which gets optimized to bcmp (SimplifyLibCalls), the undefined reference may pull in an optimized bcmp/strcmp implementation (libc replacement) later on the linker command line. If both libFuzzer's memcmp and the optimized memcmp are strong => there will be a multiple definition error. 2020-07-24 15:23:46 +08:00			`RUN: %cpp_compiler -DMEMCMP=bcmp %S/MemcmpTest.cpp -o %t`
			`RUN: not %run %t -seed=1 -runs=10000000 2>&1 \| FileCheck %s`
			`CHECK: BINGO`