sdk/runtime at b80e682cbf313691650cc9c45302811deb710aa0 - sdk

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Alexander Markov b80e682cbf [vm] Introduce --target-unknown-cpu option and use it for app-jit snapshots

App-jit and core-jit snapshots generated on one machine can be copied to
another machine with different CPU family/model, so it is incorrect to
use CPU features of the host machine to generate code for snapshots.

This change adds --target-unknown-cpu option and enables it when
generating app-jit and core-jit snapshots in standalone Dart VM and
gen_snapshot.

Currently, this flag disables SSE4.1, popcnt and ABM on ia32 and x64,
and integer division instruction on ARM. Also, new flag enables
testing of roundsd instruction availability at run time on x64
(similarly to AOT).

TEST=ci
Fixes https://github.com/dart-lang/sdk/issues/47907
Fixes https://github.com/flutter/flutter/issues/94181

Change-Id: Id28448052a21df4bae30b39e62b8532e55d4c901
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/223960
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>

2021-12-16 21:33:49 +00:00

bin

[vm] Introduce --target-unknown-cpu option and use it for app-jit snapshots

2021-12-16 21:33:49 +00:00

docs

[vm/infra] Improve IL testing framework

2021-11-16 12:39:11 +00:00

include

Revert "[vm] Add analyze_snapshot tool for AOT snapshot inspection"

2021-12-16 18:32:20 +00:00

lib

[vm] Refactor generation of identity hashes.