search for: for_body

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2015 Aug 10
3
Possible bug in adjusting PHINode from removePredecessor?
Hi, Simple description of the problem below. I have code coming into pruneEH as follows fn a { entry: call fn b ... for_cond: %i = phi [1, entry] [%x, for_body] cmp $i with someval cond-br for_body or for_exit for_body: ... $x = $i + 1 branch for_cond for_exit ... } PruneEH determines that the call to fn-b won't return. The code is modified thus. fn a { entry: call fn b unreachable insn /* Instructions after call to fn-b replaced with unreachable...