tree 95fd12bf0ec13ca659db86080483d44d33d1e00e
parent 09ee7d31a6ce5d067664606094b172b374fe6934
author Aske Simon Christensen <askesc@google.com> 1606128136 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1606128136 +0000

Revert "[vm/aot] Two improvements to signature shaking"

This reverts commit 09ee7d31a6ce5d067664606094b172b374fe6934.

Reason for revert: Broke protobuf aware tree shaker.

Original change's description:
> [vm/aot] Two improvements to signature shaking
>
> - Global parameter use analysis: when a parameter is only used directly
>   as arguments to other calls, only consider it used if any of the
>   target parameters are used.
>
> - A parameter can be eliminated if the TFA infers that it has a constant
>   value in every implementation.
>
> Reduces ARM64 .so size of Flutter Gallery by 0.25% uncompressed, 0.37%
> with gzip and 0.45% with brotli.
>
> TEST=Existing test suite, expectation files for TFA test.
> Change-Id: Iedae757f180c2215569b7a031a5f7dc0035a9b7d
> Cq-Do-Not-Cancel-Tryjobs: true
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/169884
> Commit-Queue: Aske Simon Christensen <askesc@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>

TBR=kustermann@google.com,alexmarkov@google.com,askesc@google.com

Change-Id: Ib64149dee605c2efa38345130c4a18e5ed8e0a4b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/173274
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Commit-Queue: Aske Simon Christensen <askesc@google.com>