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So essentially I'm adding a path inside of the loop. Is there a way to have llvm automatically create new IR and update the PHIs simply by adding a block like this and changing the DomTree? ---------- Forwarded message ---------- From: Ryan Taylor <ryta1203 at gmail.com> Date: Thu, Feb 2, 2012 at 12:08 PM Subject: Updating PHI for Instruction Domination? To: llvmdev at cs.uiuc.edu So

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So I have a loop with two blocks, a header (which points to return and latch) and a latch (which points to return and header). I have inserted a few new blocks, called H and F. Header now points to H and latch. Latch now points to F. H points to F. F points to Header and return. The PHI Nodes have been updated in Header accordingly, now coming from the preheader and F (instead of latch). My