Spilling has nothing to do with this. GCC has the chance to pick another GPR that is caller saved but instead picks a callee saved register. This decision incr

Spilling has nothing to do with this. GCC has the chance to pick another GPR that is caller saved but instead picks a callee saved register. This decision increases the size of libc by 1% when compiled with -fomit-frame-pointer[1]. [1] http://sources.redhat.com/ml/libc-alpha/2010-07/msg00022.html http://sources.redhat.com/ml/libc-alpha/2010-07/msg00022.htm...