Siva Annamalai
082c10aab7
This reverts commit ea57b1e62c.
Reason for revert: Please see https://buganizer.corp.google.com/issues/144304690
Original change's description:
> [VM/nnbd] Pass nullability when creating Class::DeclarationType.
>
> Passing nullability rather than forcing kLegacy helps slightly reduce the number
> of Types in the VM and in snapshots.
> This allows to remove the kludge about declaration type of Null being kNullable.
> Also pass nullability when creating a simple type may help.
>
> Note that CFE is still producing super types and some interface types that are
> non-nullable, even with nnbd features disabled. But this should get fixed and
> further reduce the number of types in the snapshot.
>
> Change-Id: I397f00902026ee5bc91d36328f4156427702efdb
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/124480
> Commit-Queue: Régis Crelier <regis@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
TBR=rmacnak@google.com,alexmarkov@google.com,asiva@google.com,regis@google.com
# Not skipping CQ checks because original CL landed > 1 day ago.
Change-Id: Icae0a69cda6cc531bba4d5d12471e7267a277340
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/125102
Reviewed-by: Siva Annamalai <asiva@google.com>
Dart VM Compilation Pipeline
This folder contains Dart VM compilation pipeline.
Compilation pipeline is mainly responsible for converting AST or Kernel AST into IL flow graphs and then generating native code from IL.
It has the following structure:
| Directory | What goes there |
|---|---|
assembler/ |
Assemblers and disassemblers |
backend/ |
IL based compilation backend: optimization passes and architecture specific code generation rules |
frontend/ |
Frontends responsible for converting AST into IL |
jit/ |
JIT specific passes and compilation pipeline entry points |
aot/ |
AOT specific passes and compilation pipeline entry points |
. |
Shared code or code without clear designation. |
Currently there are no layering restrictions and components from different subfolders can reference each other.