Some of the StrictEquality comparisons do not require feedback (for ex: in
try-finally, generators). This cl introduces StrictEqualityNoFeedback bytecode
to be used in such cases. With this change, we no longer have to check if the
type feedback slot is valid in compare bytecode handlers.
This is the first step in reworking the compare bytecode handler to avoid
duplicate checks when collecting feedback and when performing the operation.
BUG=v8:4280
Change-Id: Ia650fd43c0466b8625d3ce98c39ed1073ba42a6b
Reviewed-on: https://chromium-review.googlesource.com/455778
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44020}
Adds a TestTypeof bytecode to deal with comparisons of the form:
typeof(object) === 'string';
Also adds support to Turbofan to perform these comparisons without
inserting checkpoints.
BUG=v8:4280,v8:5267
Change-Id: Ib5cc1c6816dfe70a4120838d8eada2fc0267750f
Reviewed-on: https://chromium-review.googlesource.com/454837
Reviewed-by: Mythri Alle <mythria@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43832}
Specifically, add bytecodes for Call0, Call1, Call2, CallProperty0, CallProperty1,
and CallProperty2. Also share the bytecode handler code between between
equivalent CallX and CallPropertyX handlers.
Review-Url: https://codereview.chromium.org/2684993002
Cr-Original-Commit-Position: refs/heads/master@{#43290}
Committed: 00d6f1f80a
Review-Url: https://codereview.chromium.org/2684993002
Cr-Commit-Position: refs/heads/master@{#43700}
