Bytecode flushing can make tests using assertOptimized flaky if the bytecode is
flushed between marking and optimization. It can also be flaky if the feedback vector
is collected before optimization. To prevent this, a new %PrepareForOptimization
runtime-test function is added that hold onto the bytecode strongly until it is
optimized after being explicitly marked for optimization by %OptimizeFunctionOnNextCall.
BUG=v8:8801,v8:8395
Change-Id: Idbd962a3a2044b915903f9c5e92d1789942b5b41
Reviewed-on: https://chromium-review.googlesource.com/c/1463525
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59914}
This avoids a deopt loop.
Bug: v8:7254
Change-Id: I3a676186bc52fd47b03f03c26cb07d9257993693
Reviewed-on: https://chromium-review.googlesource.com/968503
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52036}
This reverts commit c94dcb2117.
Reason for revert: several performances regressions.
Original change's description:
> [compiler] Don't infer receiver maps for stores.
>
> This avoids a deopt loop.
>
> Bug: v8:7254
> Change-Id: I9ab1dfc754c5ad63c451a9e2276aa1d7eb4c27b1
> Reviewed-on: https://chromium-review.googlesource.com/966065
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Commit-Queue: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51994}
TBR=jarin@chromium.org,neis@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: v8:7254
Change-Id: Iff9c6fb61a559e48ad11d2db9e559de61cc0f5ef
Reviewed-on: https://chromium-review.googlesource.com/968302
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52012}
This avoids a deopt loop.
Bug: v8:7254
Change-Id: I9ab1dfc754c5ad63c451a9e2276aa1d7eb4c27b1
Reviewed-on: https://chromium-review.googlesource.com/966065
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51994}
