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4c002fce9d
This replaces the drop_in_place reference with null in vtables. On librustc_driver.so, this drops about ~17k dynamic relocations from the output, since many vtables can now be placed in read-only memory, rather than having a relocated pointer included. This makes a tradeoff by adding a null check at vtable call sites. That's hard to avoid without changing the vtable format (e.g., to use a pc-relative relocation instead of an absolute address, and avoid the dynamic relocation that way). But it seems likely that the check is cheap at runtime. |
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| .. | ||
| auxiliary | ||
| extern-drop-glue.rs | ||
| extern-generic.rs | ||
| incremental-merging.rs | ||
| inlining-from-extern-crate.rs | ||
| local-drop-glue.rs | ||
| local-generic.rs | ||
| local-inlining-but-not-all.rs | ||
| local-inlining.rs | ||
| local-transitive-inlining.rs | ||
| methods-are-with-self-type.rs | ||
| regular-modules.rs | ||
| shared-generics.rs | ||
| statics.rs | ||
| vtable-through-const.rs | ||