TurboFan is now a requirement and supported by all backends, so we don't
need those macros (plus all the machinery on top) anymore.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1282763002
Cr-Commit-Position: refs/heads/master@{#30082}
The !IS_SPEC_OBJECT(x) check implies both IS_STRING(x) and
IS_SIMD_VALUE(x), and generates shorter/better code. So we
can safely remove the redundant checks.
R=rossberg@chromium.org
Review URL: https://codereview.chromium.org/1278873007
Cr-Commit-Position: refs/heads/master@{#30081}
No need to provide TO_INT32/TO_UINT32 functions for every native
context, as they can be implemented in terms of TO_NUMBER more easily
and efficiently.
Also remove the obsolete TO_BOOLEAN_FUN_INDEX from the native contexts.
Review URL: https://codereview.chromium.org/1275013004
Cr-Commit-Position: refs/heads/master@{#30080}
When a (prototype) map registers as a user of its own prototype, it now remembers the index in that prototype's registry where it is listed.
This remembered index is used on un-registration to find the right slot to clear without walking the entire registry.
Compaction of the registry must update all entries' remembered indices.
BUG=chromium:517778,chromium:517406
LOG=n
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/1276353004
Cr-Commit-Position: refs/heads/master@{#30079}
Only walk the heap clearing KeyedStoreICs when the dictionary in question belongs to an object that's used as a prototype.
This is a temporary mitigation until we have a way to clear such ICs without having to walk the heap.
BUG=v8:4335
LOG=y
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/1275363002
Cr-Commit-Position: refs/heads/master@{#30076}
Currently, looking up a lexical context variable requires looking up
the variable name and then checking its mode. This can be a bottleneck
in Runtime_DeclareGlobals, even when no lexical context variables are
declared.
R=rossberg@chromium.org
BUG=crbug:517778
LOG=N
Review URL: https://codereview.chromium.org/1281883002
Cr-Commit-Position: refs/heads/master@{#30075}
Also clean up variable naming in min_max and other tests. Fix class_fmt in mips64 assembler test for proper NaN checking
Review URL: https://codereview.chromium.org/1276813004
Cr-Commit-Position: refs/heads/master@{#30073}
Note that this tests performed unnecessary many iterations which led to
long runtimes in debug mode and also caused flaky GCs during that would
cause the optimized code map to be flushed and violated assumptions.
R=yangguo@chromium.org
BUG=v8:4363
LOG=N
Review URL: https://codereview.chromium.org/1280973002
Cr-Commit-Position: refs/heads/master@{#30070}
With --harmony-proxies enabled, embedded pointers in optimized code can point to
a JSProxy (via a cell). Since JSProxy can morph into JSObject we need to align
the expectations of weak vs strong refs.
With this patch we also treat JSPRoxy as weak ref (like JSObject) and therefore
properly record a dependency on it, so that once the cell pointing to it becomes
unreachable we deoptimize the corresponding code.
BUG=v8:4359
LOG=N
Review URL: https://codereview.chromium.org/1270393003
Cr-Commit-Position: refs/heads/master@{#30067}
Rationale: The {kind} of a call descriptor describes what the {target} being
called is--i.e. a JSFunction, code object, or address. That kind materially
dictates the instruction(s) generated for an outgoing call.
The other flags on a call descriptor should describe specific properties
(like whether a roots register is valid or not) so that backend logic doesn't
have to switch over the kind, but is informed directly of what it wants to
know.
R=mstarzinger@chromium.org
BUG=
Review URL: https://codereview.chromium.org/1268273003
Cr-Commit-Position: refs/heads/master@{#30065}
even if there are no idle notifications.
BUG=chromium:515873
LOG=NO
Review URL: https://codereview.chromium.org/1274633003
Cr-Commit-Position: refs/heads/master@{#30062}
mutator utilization.
This makes GC heuristics more robust for small applications that trigger
scavenges but do not trigger full GC.
BUG=
Review URL: https://codereview.chromium.org/1280703002
Cr-Commit-Position: refs/heads/master@{#30060}
Otherwise, if there is no GC and no idle notification,
memory reducer will use old allocation rate.
BUG=chromium:515873
LOG=NO
Review URL: https://codereview.chromium.org/1280623002
Cr-Commit-Position: refs/heads/master@{#30059}
This fixes a corner-case where extending an optimized code map left
stale entries in the abandoned copy. This can cause havoc not only in
the heap verifier but also in the GC, because stale entries have not
been recorded when being trated weakly.
Note that this also pre-tenures all optimized code maps into old-space
because their lifetime is coupled to the SharedFunctionInfo anyways.
R=hpayer@chromium.org
TEST=cctest/test-heap/Regress514122
BUG=chromium:514122
LOG=N
Review URL: https://codereview.chromium.org/1277873002
Cr-Commit-Position: refs/heads/master@{#30047}
Use the same path separator for test cases on the cmd-line
on all platforms as in testcase.GetLabel, which is used to
report failures.
BUG=chromium:511215
LOG=n
NOTRY=true
Review URL: https://codereview.chromium.org/1281453003
Cr-Commit-Position: refs/heads/master@{#30045}
We missed a check whether we can actually do incremental marking when starting
it on reaching the external allocation limit.
BUG=chromium:517195
LOG=N
Review URL: https://codereview.chromium.org/1274983002
Cr-Commit-Position: refs/heads/master@{#30043}
I explored gdb macros, but hit an issue quite early with instantiating and initializing an OFStream - "virtual baseclass botch".
Currently, I have a side-file that I include (and then remove before publishing CLs), which defines wrappers to the above operator<< APIs, but this is becoming quite awkward, and I believe the functionality to be quite useful to anyone working in this (regalloc) area, so it's worth having something better than local side-files. The gdb path seems overly-twisted for the problem at hand, and I've noticed elsewhere (e.g. Object) the presence of Print APIs - hence this change.
BUG=
Review URL: https://codereview.chromium.org/1280483002
Cr-Commit-Position: refs/heads/master@{#30039}
