Ryan Macnak 91ed534139 [vm] Support --use_bare_instructions when splitting snapshots. ...

- Don't use PC-relative calls when calling between loading units.
 - Sort the contents of the code cluster by loading unit, then by text offset.
 - Handle binding PC-relatives calls and inserting trampolines per loading unit.
 - Create one code order table per loading unit to implement PC -> Code lookup.
 - Read code order tables directly, instead of copying into malloc'd memory.

--use_table_dispatch still not yet supported.

This slightly shrinks non-split binaries (~2% clustered part, 0.4% total snapshot) due to the new delta encoding when Code references Instructions.

Bug: https://github.com/dart-lang/sdk/issues/41974
Change-Id: I51052ebc7b4968b554897d1710135a6c41821302
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/157820
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Tess Strickland <sstrickl@google.com>

2020-08-12 17:23:14 +00:00

..

dart

[vm] Support --use_bare_instructions when splitting snapshots.

2020-08-12 17:23:14 +00:00

dart_2

[vm] Support --use_bare_instructions when splitting snapshots.

2020-08-12 17:23:14 +00:00

data

Fix the name of the test output file in .gitignore.

2017-11-22 19:10:34 +00:00

vm.status

[gardening] Mark regression test slow

2020-08-07 10:25:07 +00:00