Ryan Macnak
1d797bd2e2
This reverts commit 562af5de35.
Reason for revert: regression, loses exact type for initial value?
Original change's description:
> [vm, compiler] Treat _uninitializedData/Index as effectively const.
>
> This avoids static field initialization checks in the default map and set constructors, which in turn avoids write barriers and the frame build.
>
> TEST=ci
> Change-Id: Ie12840ae1799cd97645b2132ad94ec6525126f74
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/398760
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
> Commit-Queue: Ryan Macnak <rmacnak@google.com>
Change-Id: I41af0247277f6456ba9c5dfcdb8da43cebc64cc0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/400222
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
Auto-Submit: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Ryan Macnak <rmacnak@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.