tree 901875fcfe28c767b84d000ca869fe74bdb0eef3
parent 78b5bb0ae232313d9435c55cd9083e386c338b86
author Alexander Markov <alexmarkov@google.com> 1660792973 +0000
committer Commit Bot <commit-bot@chromium.org> 1660792973 +0000

[vm/compiler] Reduce flow graph checks for common constants

This change disables certain debug mode checks for commonly used
constants which were enabled in https://dart-review.googlesource.com/c/sdk/+/253840.

It turns out they affect compilation time considerably in debug mode,
especially if low optimization threshold is used and kernel service
snapshot is not used (for example in debug/ia32 mode).

Time of running standalone_2/regress31114_test in debug/ia32 mode:
78s -> 34s.

TEST=CQ + a few debug bots
Fixes https://github.com/dart-lang/sdk/issues/49676

Change-Id: I9e09d6e5b9c1c86d9026a924a367301e0dac85b0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/255500
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>