Re: [ARM] Don't give SETs a base cost of COSTS_N_INSNS (4)

2011-08-18 Thread Richard Earnshaw
On 18/08/11 14:03, Richard Sandiford wrote: > Following on from: > > http://gcc.gnu.org/ml/gcc/2011-08/msg00306.html > > this patch stops the ARM and Thumb-2 rtx costs from giving SETs a base > cost of COSTS_N_INSNS (4). In current trunk, the main effect is to stop > ivopts from being excess

[ARM] Don't give SETs a base cost of COSTS_N_INSNS (4)

2011-08-18 Thread Richard Sandiford
Following on from: http://gcc.gnu.org/ml/gcc/2011-08/msg00306.html this patch stops the ARM and Thumb-2 rtx costs from giving SETs a base cost of COSTS_N_INSNS (4). In current trunk, the main effect is to stop ivopts from being excessively conservative in the number of ivopts that it creates