On Thu, Oct 1, 2009 at 10:33, sandeep soni <saintiwara@xxxxxxxxx> wrote: > Also please,if somebody can,point out the source files which > contribute to this? Yes. There are many files that deal with this. The CFG is built in gcc/tree-cfg.c, various other files have modules related to CFG maintenance and traversal. Dataflow is done on SSA in the gimple IL (tree-into-ssa.c, tree-ssa.c, tree-outof-ssa.c and friends) and using traditional dataflow in the RTL IL (df-*.c). Diego.
