DragonEgg causes the Traditional DES performance in John The Ripper to significantly regress while Clang 3.0 was performing on par with GCC 4.6.2.
While DES caused regressions, the MD5 test in John The Ripper was faster with the LLVM options -- Clang and DragonEgg.
The table was flipped around again with the Blowfish test, where the mainline GCC 4.6.2 compiler outperformed Clang and DragonEgg.
That covers the most interesting results. More data is available on OpenBenchmarking.org.