2011/7/20 Ian Lance Taylor <iant@xxxxxxxxxx>: > Aurelien Buhrig <aurelien.buhrig.gcc@xxxxxxxxx> writes: > >> And generally speaking, is the tree generation influenced by the RTL >> description in any way ? > > Yes, the loop optimizer uses RTL costs to select code sequences. OK, I will check my rtx cost... BTW, should the cost of RTXs depend on optimize_size to reflect either the code size or the "execution time"? Thanks for your help! Aurélien