Previously Ignition would collect precise Number feedback for binary
operators, but TurboFan would just ignore that and treat it the same as
NumberOrOddball. That however generates a lot of unnecessary code, plus
it defeats redundancy elimination if the same input is also used by
compare operations, which do properly distinguish feedback Number and
NumberOrOddball.
This CL adds the missing bits to connect the existing functionality
properly, i.e. adding the missing BinaryOperationHint and using the
NumberOperationHint::kNumber in the representation selection for tagged
inputs.
R=jarin@chromium.org
Review-Url: https://codereview.chromium.org/2923543003
Cr-Commit-Position: refs/heads/master@{#45732}
1. Replaces --crankshaft with --opt in tests.
2. Also fixes presubmit to check for --opt flag when
assertOptimized is used.
3. Updates testrunner/local/variants.py and
v8_foozie.py to use --opt flag.
This would mean, nooptimize variant means there are
no optimizations. Not even with %OptimizeFunctionOnNextCall.
Bug:v8:6325
Change-Id: I638e743d0773a6729c6b9749e2ca1e2537f12ce6
Reviewed-on: https://chromium-review.googlesource.com/490206
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44985}
Since we no longer support the ignition-staging configuration
any longer, we can retire the three tier pipeline and the
CompileBaseline functionallity.
We still need support for JSFunction self healing due to
liveedit (which for --no-turbo might end up replacing a
forced Ignition function with a FCG function) - we can
remove this once we remove --no-turbo support.
BUG=v8:4280
Change-Id: I5482abd17785324654e022affd6bdb555b19b181
Reviewed-on: https://chromium-review.googlesource.com/452620
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44141}
This CL adds --crankshaft and --no-always-opt flags to the tests that use
assertOptimized() and assertUnoptimized() respectively.
This CL also adds presubmit checks that ensure that tests have the proper
flags set.
BUG=v8:5890
Review-Url: https://codereview.chromium.org/2653753007
Cr-Commit-Position: refs/heads/master@{#42709}
For inputs to truncating binary operations like <<, | or >>>, support
all Oddballs not just undefined, true and false. This unifies treatment
of these truncations in Crankshaft and TurboFan, and is very easy
nowadays, since the memory layout of Oddball and HeapNumber is
compatible.
R=yangguo@chromium.org
BUG=v8:5400
Review-Url: https://codereview.chromium.org/2452193003
Cr-Commit-Position: refs/heads/master@{#40608}
