Alexander Markov
6e53ac6e4c
Before calling Subtype1TestCache stub, there was a quick check if supertype's class id matches tested class id. Null extends Object, so supertype of Null matches Object. However, in NNBD strong mode Null is not assignable to Object. Fixes https://github.com/dart-lang/sdk/issues/41272 Change-Id: Icc3efaf90992b5083cbe086af81db7504724b855 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142085 Reviewed-by: Régis Crelier <regis@google.com> Commit-Queue: Alexander Markov <alexmarkov@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.