Tag collector heap-data structs with alias regions#13734
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fitzgen merged 1 commit intoJun 26, 2026
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cfallin
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Jun 25, 2026
Add `VMDrcHeapData`, `VMCopyingHeapData`, and `VMNullHeapData` variants of `VmType` and `AliasRegions` helpers that emit their field loads/stores. Tag the DRC over-approximated-stack-roots list head/length fields, the copying collector's `bump_ptr`/`active_space_end`, and the null collector's bump finger with their owning struct's region instead of `gc_memflags()`.
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Add
VMDrcHeapData,VMCopyingHeapData, andVMNullHeapDatavariants ofVmTypeandAliasRegionshelpers that emit their field loads/stores. Tag the DRC over-approximated-stack-roots list head/length fields, the copying collector's bump_ptr/active_space_end, and the null collector's bump finger with their owning struct's region instead ofgc_memflags().