The leading open-source code compilers -- namely the GNU
Compiler Collection (GCC) and LLVM/Clang -- now have maturing support
for Intel's Sandy Bridge microarchitecture with further optimizations
for the forthcoming Ivy Bridge successor. With the current and
next-generation Intel support covered, open-source compiler developers
have already moved onto beginning work for supporting Intel's Haswell
microarchitecture that will not be launched until 2013. Read more at Phoronix.