It's the end of 2014. It has been an amazing year with a lot of astonishing moments!
How to count the number of trailing zeros of an integer? The simplest way is
to use the built-in function __builtin_ctz():
uint64_t count(uint64_t n) {
return __builtin_ctz(n);
}
What will happen if we don't have __builtin_ctz()? If we have another
built-in function __popcount(), which can …
RISC-V is an instruction set architecture (ISA) released by UC Berkeley. Besides, a high performance, power efficient, and royalty-free open source implementation Rocket Chip is available.
RISC-V was developed by Krste Asanović and David A. Patterson. In their technical report, they claimed that an open instruction set can benefit both …
I came across the LLVM obfuscator today. It is a code obfuscator working mostly on LLVM IR level. This means that most LLVM supported target platforms are supported by the LLVM obfuscator as well.
Also, I have also read an article which mentioned how to disassemble and deobfuscate the binaries …
It is a well-known idiom to define a virtual destructor for the classes with virtual functions. If we don't define a virtual destructor, then the base class destructor will be invoked when you are deleting the object through the base class pointer even if the object is an instance of …
In this post, I would like to introduce the bugpoint command line tool. This is a automatic test case reduction tool which can help us generate minimal test case.
As a compiler developer, the first step to debug is to create a minimal test case which can still reproduce the …
In the past, I didn't like to install the Vim plug-ins or new syntax
highlight because all of the files were messed up in the .vim directory
which makes it difficult to uninstall a plug-in.
Recently, I have come across with Vim Vundle. It is a vim plug-in manager which …
According to the post by Andreas Gal, EFF, Mozilla, Cisco, Akamai, and IdenTrust are going to form Internet Security Research Group which will start the Let's Encrypt ceritificate authority service in 2015 Q2.
Let's Encrypt is expected to become a free, automated, and open SSL sertificate authority which aims to …
