LLVM13字符串混淆

闲的没事写着pass玩的，没有经过大量测试，谨慎使用

Name		Name	Last commit message	Last commit date
Latest commit History 3 Commits
clang-tools-extra		clang-tools-extra
clang		clang
compiler-rt		compiler-rt
cross-project-tests		cross-project-tests
flang		flang
libc		libc
libclc		libclc
libcxx		libcxx
libcxxabi		libcxxabi
libunwind		libunwind
lld		lld
lldb		lldb
llvm		llvm
mlir		mlir
openmp		openmp
parallel-libs		parallel-libs
polly		polly
pstl		pstl
runtimes		runtimes
utils		utils
CONTRIBUTING.md		CONTRIBUTING.md
README.md		README.md
SECURITY.md		SECURITY.md