tree 090d363ca74fb30200d23be1576a98335596a485
parent 4b19ca1489d49a519d4c346ac89149bf5c65f7a1
author Alexander Markov <alexmarkov@google.com> 1555429435 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1555429435 +0000

[vm/compiler] Elide DebugStepCheck instructions in PRODUCT mode

This improves https://dart-review.googlesource.com/c/sdk/+/99287
by removing DebugStepCheck instructions from unoptimized IL
entirely in PRODUCT mode.

Crash mentioned in https://dart-review.googlesource.com/c/sdk/+/99287/1/runtime/vm/compiler/backend/il_arm.cc#7045
is fixed. Also, this CL adds checks which helped me to debug the crash.

Change-Id: I5452877355876b21d2ce21890626db9e5a59f170
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99421
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>