On 9/10/18 1:43 PM, Martin Liška wrote: > On 09/04/2018 05:07 PM, Martin Liška wrote: >> - in order to achieve real speed up we need to split also other generated >> (and also dwarf2out.c, i386.c, ..) files: >> here I'm most concerned about insn-recog.c, which can't be split the same >> way without ending up with a single huge SCC component. > > About the insn-recog.c file: all functions are static and using SCC one ends > up with all functions in one component. In order to split the callgraph one > needs to promote some functions to be extern and then split would be possible. > In order to do that we'll probably need to teach splitter how to do > partitioning > based on minimal number of edges to be removed. > > I need to inspire in lto_balanced_map, or is there some simple algorithm I > can start with? > > Martin >
I'm adding here Richard Sandiford as he wrote majority of gcc/genrecog.c file. As mentioned, I'm seeking for a way how to split the generated file. Or how to learn the generator to process a reasonable splitting. Thanks, Martin
