Data dependence analysis is done in sched-deps.c. You can have a look at build_intra_loop_deps function in ddg.c (which constructs data dependency graph for modulo scheduler) to see how it is used.
Bingfeng > -----Original Message----- > From: gcc-ow...@gcc.gnu.org [mailto:gcc-ow...@gcc.gnu.org] On > Behalf Of Jianzhang Peng > Sent: 03 December 2009 09:56 > To: gcc@gcc.gnu.org > Subject: HELP: data dependence > > I want to get data dependence information about an basic block, which > contains RTLs. > What functions or data structure should I use ? > > thanks > > -- > Jianzhang Peng > >