On Thu, May 19, 2011 at 11:10:24AM -0700, Xinliang David Li wrote: > On Thu, May 19, 2011 at 11:04 AM, Andi Kleen <a...@firstfloor.org> wrote: > > davi...@google.com (David Li) writes: > > > >> -fdisable-tree-ccp1 <--- disable ccp1 for all functions > >> -fenable-tree-cunroll=1 <--- enable complete unroll for the function > >> whose cgraphnode uid is 1 > >> -fdisable-rtl-gcse2=1:100,300,400:1000 <-- disable gcse2 for > >> functions at the following > >> ranges [1,1], [300,400], > >> and [400,1000] > > > > How are the ranges defined? I doubt numbers are a good interface here > > to specify functions. > > The numbers are cgraph uids for the functions. The form that takes the > range is mainly for developers who use scripts to auto search (bug > triaging and optimization space traverse).
How about function names? > > This would be better done with #pragmas? > > This is not good for automation. However, I do plan (later after this Why not? It should be easy enough to write a script to add such pragmas given a dwarf2 symbol->file:line dump I think pragmas would be a lot more useful for non compiler developers. -Andi
