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The callee walk in `typeinf!` re-infers callees via `typeinf_code` on the same interpreter that ran the root inference cascade. The interpreter-local cache can still hold tombstoned (LimitedAccuracy) const-prop results from that deeper context, suppressing const-prop that would succeed in the standalone entry and storing under-optimized source (e.g. unfolded Symbol dispatch, failing GPU IR validation; JuliaGPU/CUDA.jl#3185). Clear the cache before each re-inference, matching the runtime's fresh-interpreter-per-entry behavior. Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
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Julia object references (julia.constgv globals) are kept session-portable by stripping their initializers after codegen, with relocate_gvs! baking in the absolute addresses at the toplevel link step. Leaving them behind as internal globals with a null initializer made them fair game for optimization passes that run before relocation -- notably the GlobalOpt run in the PTX back-end's finish_module! -- which folded loads of them to inline nulls and deleted the globals, constant-folding e.g. device-side comparisons against Symbol literals (JuliaGPU/CUDA.jl#3185). Demote them to external declarations instead, which no pass can fold, and have relocate_gvs! restore initializer and linkage. Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
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