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GHC 10.0.0.20260917 · lts/ghc-10.0.x · 77a8662 · 2026-10-31

Moduleghc-10.0.0.20260917GHC2024

GHC.StgToCmm.TagCheck

Synopsis

Call barf if we failed to predict a tag correctly. This is immensely useful when debugging issues in tag inference as it will result in a program abort when we encounter an invalid call/heap object, rather than leaving it be and segfaulting arbitrary or producing invalid results. We check if either: * A tag is present * Or the object is a 25 (for which zero is the proper tag)