Benchmarking LLVM/Clang 3.2, GCC 4.8, DragonEgg Compilers Written by Michael Larabel in Software on 9 November 2012 at 10:57 AM EST. Page 1 of 5. 7 Comments. Earlier this week I shared some updated benchmarks of the latest development code for LLVM/Clang 3.2 on an Intel Core i7 processor. Now from this same setup to complement the LLVM 3.1/3.2 benchmarks are results of the GCC 4.7.2 compiler, the