Alexander Markov
ebb7e1061c
setjmp is extremely expensive on MacOS/iOS as it always saves signal mask. Introduce DART_SETJMP / DART_LONGJMP macros to use _setjmp instead of setjmp on MacOS/iOS. DeltaBlue on Mac/arm64 on the interpreter: 179585.3 us -> 58347.9 us. (3x faster) TEST=ci Issue: https://github.com/dart-lang/sdk/issues/60205 Change-Id: I2122f2eb4d5de66ae2ef904a7034af1ed09f1d07 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/412320 Reviewed-by: Ryan Macnak <rmacnak@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.