On Thu, Nov 30, 2017 at 05:49:27PM -0700, Jeff Law wrote: > I think length and costing information are definitely things we want to > include. Length is less of an issue now than it was in the past, but it > definitely has value.
At least for risc targets length is usually pretty boring, but this is not the length of machine insns, RTL insns instead, making it more insteresting; and when it is wrong it leads to hard to debug problems, and we don't have this info easily accessible elsewhere. Similar goes for the insn_cost: if you need to debug it, the -dp output is a very convenient place to quickly get an overview of what we generate. Segher
