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...> > > Devang > > > I will use the pass -reg2mem, as suggested by ether, to avoid to PHI nodes altogether. Thanks, Alexandra - -- View this message in context: http://old.nabble.com/Specify-dominator-for-BasicBlock-to-avoid-%22Instruction-does-not-dominate-all-uses%21%22-tp29935454p29942642.html Sent from the LLVM - Dev mailing list archive at Nabble.com.

On Oct 11, 2010, at 9:05 AM, Xinfinity wrote: > > Hi, > > I am working on a pass aimed to unify multiple exits of a loop into a unique > basic block. The approach is straight forward: > I create a unique BasicBlock BB_unique that has as predecessors all the exit > blocks of the loop, it contains a phi instruction and a switch to redirect > the flow correctly.

Hi, I am working on a pass aimed to unify multiple exits of a loop into a unique basic block. The approach is straight forward: I create a unique BasicBlock BB_unique that has as predecessors all the exit blocks of the loop, it contains a phi instruction and a switch to redirect the flow correctly. Additionally, for each initial exit block I create an associated block that will jump to the