On 13/5/13 11:15 AM, Kugan wrote: > Hi, > > Ping this patch by Chung-Lin. > http://gcc.gnu.org/ml/gcc-patches/2011-05/msg01179.html > > This patch allows lr registers to be used in leaf functions for ARM. > > There were some concerns about performance regression in thumb2 mode for > CoreMark. However, looking at the code further shows that this > performance regression is due to alignment issue with > core_state_transition function and as a result taking longer time to > execute. In fact, there isn’t any change in the code generated for > core_state_transition with and without the patch. Adding Alignment to > this function improves the performance than without the patch.
Just curious, were changes to enforce the alignment added already? (I'm quite out of ARM-specific context lately). Chung-Lin
