Dose gcc provide any function to build def-use chain in RTL form

hi now i'm trying to construct def-use chain after the PASS_LEAF_REGS. for the ssa form structure has been destoried during the former passes. I have found that gcc provides a way to build the def-use chain in the PASS_REGRENAME, but it only contains the defs and uses all in one basic block. so

Re: Dose gcc provide any function to build def-use chain in RTL form

villa gogh wrote: hi now i'm trying to construct def-use chain after the PASS_LEAF_REGS. for the ssa form structure has been destoried during the former passes. I have found that gcc provides a way to build the def-use chain in the PASS_REGRENAME, but it only contains the defs and uses all