tree 6e9557fd8687545dbab4f52476be5d09acd03ce6
parent 4be50d6fa1737dcb8402041ecb7334e5a34ba3a1
author Vyacheslav Egorov <vegorov@google.com> 1527852188 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1527852188 +0000

Revert "[vm] Enable type stubs based type checks in JIT mode for some types."

This reverts commit 4be50d6fa1737dcb8402041ecb7334e5a34ba3a1.

Reason for revert: Failures on SIMDBC64 and Analyzer bots.

Original change's description:
> [vm] Enable type stubs based type checks in JIT mode for some types.
> 
> For now we are limiting this to type checks against type parameter types.
> 
> # Performance improvements
> 
> In Dart 1 mode Dart2JS compiles itself in 28s when running from source
> and in 23s when running from ideal app-jit snapshot (trained on the
> same workload).
> 
> Before this change in Dart 2 mode numbers were 51s and 57s respectively.
> 
> After this change in Dart 2 mode numbers are 38s and 32s. Meaning
> that regression is reduced by 50%.
> 
> Issue https://github.com/dart-lang/sdk/issues/31798
> Issue https://github.com/dart-lang/sdk/issues/33257
> 
> Change-Id: I34bf5385a5cc3c7702dc281c6dfa89da85d3dde1
> Reviewed-on: https://dart-review.googlesource.com/57601
> Reviewed-by: Régis Crelier <regis@google.com>
> Commit-Queue: Vyacheslav Egorov <vegorov@google.com>

TBR=vegorov@google.com,kustermann@google.com,regis@google.com

Change-Id: I85a30c962b0cd556310e19193f5993ab76ecf2e7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/57840
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>