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Richard Biener
authored
The following makes us use RPO order instead of walking post-dominators. This ensures we visit a block before any predecessors. I've seen some extra sinking because of this in a larger testcase but failed to reduce a smaller one (processing of post-dominator sons is unordered so I failed to have "luck"). * tree-ssa-sink.cc (pass_sink_code::execute): Do not calculate post-dominators. Calculate RPO on the inverted graph and process blocks in that order.