Zach Anderson
d7df61e042
This reverts commit 7fe44864d6.
Reason for revert: https://github.com/flutter/flutter/issues/106957
Original change's description:
> [vm] Generate event ids for synchronous begin and end events.
>
> os_signposts needs explicit ids to match begin and end events, whereas all other trace systems do this implicitly.
>
> TEST=Instruments
> Bug: https://github.com/dart-lang/sdk/issues/49178
> Change-Id: Ifeeaa1dfe823a0d5668f48b8c584f8bdeef23212
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/249951
> Reviewed-by: Siva Annamalai <asiva@google.com>
> Commit-Queue: Ryan Macnak <rmacnak@google.com>
TBR=rmacnak@google.com,asiva@google.com
Change-Id: Id86959d08b5352b5446b6f294a8302b88b4fa0c8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: https://github.com/dart-lang/sdk/issues/49178
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/250403
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Liam Appelbe <liama@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Liam Appelbe <liama@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.