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authortomsmeding <tom.smeding@gmail.com>2019-12-14 22:56:31 +0100
committertomsmeding <tom.smeding@gmail.com>2019-12-14 22:56:31 +0100
commit638181c4f19f38898abf5ff41b891eaa62ea9325 (patch)
tree17ac7b80dab785bdf94741d08264d46b13f0892e /VM.hs
parent6e62e5af36fa972c631ffc185cfa77c30a390b40 (diff)
Fix serious correctness issue in Optimiser globalPropAssignsHEADmaster
The optimisation pass would often not collect all assignments to a particular reference, so that it would wrongly conclude that a reference is only ever assigned once while it is actually assigned in multiple places. I have _no_ idea why this didn't result in issues before.
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