Chris Tate a67f7d13ea Map wide shape-union records to their arm through one table per union ...

A shape union's tag helper switched on the record's shape number. Inlined
into a caller's branch on the arm, LLVM folded the two into one jump table
per site, spanning the arms' shape numbers. In the native compiler, whose
IR unions span about 112 shape numbers, that came to about 27,600 tables
and 9 MB of read-only data, most of which a cold build pages in.

A union whose arms span more than 32 shape numbers now maps the shape
number to its arm through one constant table, indexed by the shape number
minus the arms' lowest. An entry is a byte, or a 16-bit word for a union
of 255 arms or more; the all-ones entry names no arm. Callers branch on
the small arm tag. Narrower unions keep the switch, whose folded jump
tables stay small and dispatch in one jump.

2026-10-25 21:23:47 -05:00

..

backend

Map wide shape-union records to their arm through one table per union

2026-10-25 21:23:47 -05:00

cli

Add scriptc types patch and scriptc types list

2026-10-25 16:00:29 -07:00

compat

Build the large compiler tables on first use

2026-10-25 05:23:35 -05:00

contracts

Keep class methods native when element writes store data under their names

2026-10-23 13:20:59 -05:00

coverage

Build the large compiler tables on first use

2026-10-25 05:23:35 -05:00

diagnostics

Merge main

2026-10-25 18:54:10 -05:00

executable

Name the package declaration and its patch when a declared-type check fails (#2268)

2026-10-25 21:20:34 -05:00

ffi

Enforce linting and consistent source formatting

2026-10-05 17:51:24 -05:00

frontend

Name the package declaration and its patch when a declared-type check fails (#2268)

2026-10-25 21:20:34 -05:00

ir

Name the package declaration and its patch when a declared-type check fails (#2268)

2026-10-25 21:20:34 -05:00

library

Build the large compiler tables on first use

2026-10-25 05:23:35 -05:00

native

Name the package declaration and its patch when a declared-type check fails (#2268)

2026-10-25 21:20:34 -05:00

node-islands

Merge main and fix the Node island report

2026-10-23 11:15:27 -05:00

wasm

Merge origin/main into ni-2-node-island-report

2026-10-21 20:07:41 -07:00

compile-types.ts

Merge main and skip package.json files without a scriptc key

2026-10-25 03:58:49 -05:00

errors.ts

…

format-integer.ts

Enforce linting and consistent source formatting

2026-10-05 17:51:24 -05:00

frontend-process-args.test.ts

Prepare the first build of an executable in a frontend process

2026-10-21 08:23:18 -05:00

frontend-process-args.ts

Prepare the first build of an executable in a frontend process

2026-10-21 08:23:18 -05:00

frontend-process.ts

Collect the compiler's heap as lowering and LLVM emission grow it

2026-10-21 15:50:32 -05:00

heap-collection.test.ts

Collect the compiler's heap as lowering and LLVM emission grow it

2026-10-21 15:50:32 -05:00

heap-collection.ts

Collect the compiler's heap as lowering and LLVM emission grow it

2026-10-21 15:50:32 -05:00

heap-pressure.ts

Collect the compiler's heap as lowering and LLVM emission grow it

2026-10-21 15:50:32 -05:00

index.ts

Name the package declaration and its patch when a declared-type check fails (#2268)

2026-10-25 21:20:34 -05:00

project-config.test.ts

Check type patch files again on a cached configuration, and supply .jsx entries

2026-10-25 14:32:00 -05:00

project-config.ts

Check type patch files again on a cached configuration, and supply .jsx entries

2026-10-25 14:32:00 -05:00

startup-cache.ts

Warn about likely-hot functions that use untyped values

2026-10-21 18:53:43 -05:00

text-parts.test.ts

Read cached LLVM in parts on warm builds

2026-10-21 08:52:43 -05:00

text-parts.ts

Read cached LLVM in parts on warm builds

2026-10-21 08:52:43 -05:00

timing.ts

Prepare the first build of an executable in a frontend process

2026-10-21 08:23:18 -05:00

wasi-paths.ts

feat(compiler): lower the complete frontend statically

2026-09-28 23:49:13 -05:00