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Mirror of https://github.com/RPCS3/llvm-mirror
b89be3c7f6
code review. It turns out this *is* necessary, and I read the comment on the API correctly the first time. ;] The `applyUpdates` routine requires that updates are "balanced". This is in order to cleanly handle cycles like inserting, removing, nad then re-inserting the same edge. This precludes inserting the same edge multiple times in a row as handling that would cause the insertion logic to become *ordered* instead of *unordered* (which is what the API provides). It happens that in this specific case nothing (other than an assert and contract violation) goes wrong because we're never inserting and removing the same edge. The implementation *happens* to do the right thing to eliminate redundant insertions in that case. But the requirement is there and there is an assert to catch it. Somehow, after the code review I never did another asserts-clang build testing loop-unswich for a long time. As a consequence, I didn't notice this despite a bunch of testing going on, but it shows up immediately with an asserts build of clang itself. llvm-svn: 331246 |
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