Boostrap without linking is (conservatively) 17% faster on my machine.
Test setup runs the compiler compiling itself under ORC in release mode
from a clean cache and no C compilation (`--compileOnly`.)
Multiple samples are gathered before judging a potential optimization.
The test suite passes locally before push and bootstrap is tested with
strict views (mostly as a sanity check).
Tests are fair in the sense that they compile the same git worktree and
produce identical C output.
Refc will see less or no benefit.
Changes:
- Save tree traversals in `considerGenSyms` when no mappings exist
- Inline `maybeSkipDistinct` into `typeRel` for a safe cursor
- Only skip to static when there is a static type to reach in
`paramTypesMatchAux`
- Disable overflow checks for hashes
- Disable bounds checks for `nextIdentIter`
- Use cursor annotation when judged safe
- Use lent annotation for ast accessors
Spiritual companion to #26084
f0e7969bb0