Reason for revert:
Failures on greedy RegAlloc, Fuzzer
Original issue's description:
> Remove register index/code indirection
>
> Previous to this patch, both the lithium and TurboFan register
> allocators tracked allocated registers by "indices", rather than
> the register codes used elsewhere in the runtime. This patch
> ensures that codes are used everywhere, and in the process cleans
> up a bunch of redundant code and adds more structure to how the
> set of allocatable registers is defined.
>
> Some highlights of changes:
>
> * TurboFan's RegisterConfiguration class moved to V8's top level
> so that it can be shared with Crankshaft.
> * Various "ToAllocationIndex" and related methods removed.
> * Code that can be easily shared between Register classes on
> different platforms is now shared.
> * The list of allocatable registers on each platform is declared
> as a list rather than implicitly via the register index <->
> code mapping.
>
> Committed: https://crrev.com/80bc6f6e11f79524e3f1ad05579583adfd5f18b2
> Cr-Commit-Position: refs/heads/master@{#30913}
TBR=akos.palfi@imgtec.com,bmeurer@chromium.org,jarin@chromium.org,paul.lind@imgtec.com,titzer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1365073002
Cr-Commit-Position: refs/heads/master@{#30914}
Previous to this patch, both the lithium and TurboFan register
allocators tracked allocated registers by "indices", rather than
the register codes used elsewhere in the runtime. This patch
ensures that codes are used everywhere, and in the process cleans
up a bunch of redundant code and adds more structure to how the
set of allocatable registers is defined.
Some highlights of changes:
* TurboFan's RegisterConfiguration class moved to V8's top level
so that it can be shared with Crankshaft.
* Various "ToAllocationIndex" and related methods removed.
* Code that can be easily shared between Register classes on
different platforms is now shared.
* The list of allocatable registers on each platform is declared
as a list rather than implicitly via the register index <->
code mapping.
Review URL: https://codereview.chromium.org/1287383003
Cr-Commit-Position: refs/heads/master@{#30913}
We not keep track of the histogram as we process values and do not wait until
printing the histogram. Furthermore processing the histogram is not O(n) for n
values.
BUG=
Review URL: https://codereview.chromium.org/1364733002
Cr-Commit-Position: refs/heads/master@{#30891}
mdb_v8, a post-mortem debugging tool for Node.js, allows users to
inspect ScopeInfo structures in order to get more information about
closures.
Currently, it hardcodes the metadata it uses to find this information.
This change allows it to get this metadata from the node binary itself,
and thus to adapt to future changes made to the layout of the ScopeInfo
data structure.
BUG=
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1350843003
Cr-Commit-Position: refs/heads/master@{#30843}
Since https://codereview.chromium.org/272163002, BitField3 is a raw
uint32 field, and not a SMI anymore.
Update tools/gen-postmortem-metadata.py so that post-mortem tools can
work with versions of V8 that shipped after that change.
This change was merged in github.com/joyent/node right before node
v0.12.0 was released.
R=danno@chromium.org
TEST=mdb_v8, a post-mortem debugging tool running on SmartOS, has been
using this change since Node.js v0.12.0 was released
BUG=
Review URL: https://codereview.chromium.org/1296743003
Cr-Commit-Position: refs/heads/master@{#30839}
It's been enabled since M45, which is now well into its stable period,
with no problems reported.
Review URL: https://codereview.chromium.org/1356793002
Cr-Commit-Position: refs/heads/master@{#30835}
Now run-tests.py understands "suite/foo/bar" with forward slashes for
command-line test selection on all test suites on all platforms.
Previously, file-based suites like mjsunit also accepted "mjsunit/foo\bar";
that behavior is sacrificed here in favor of unification. For the cctest
suite, OTOH, it wasn't possible on Windows to select specific tests at all.
Original review: https://codereview.chromium.org/1348653003/
This reverts commit 5f44a91059.
NOTRY=true
Review URL: https://codereview.chromium.org/1356613002
Cr-Commit-Position: refs/heads/master@{#30798}
Reason for revert:
mozilla tests are failing on Windows
Original issue's description:
> [test] Fix cctest path separators on Windows
>
> Now run-tests.py understands "suite/foo/bar" with forward slashes for
> command-line test selection on all test suites on all platforms.
>
> Previously, file-based suites like mjsunit also accepted "mjsunit/foo\bar";
> that behavior is sacrificed here in favor of unification. For the cctest
> suite, OTOH, it wasn't possible on Windows to select specific tests at all.
>
> Committed: https://crrev.com/b36cfdb39ae648b49a1396c4f669df9b1f57996c
> Cr-Commit-Position: refs/heads/master@{#30794}
TBR=machenbach@google.com,machenbach@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1349163002
Cr-Commit-Position: refs/heads/master@{#30795}
Now run-tests.py understands "suite/foo/bar" with forward slashes for
command-line test selection on all test suites on all platforms.
Previously, file-based suites like mjsunit also accepted "mjsunit/foo\bar";
that behavior is sacrificed here in favor of unification. For the cctest
suite, OTOH, it wasn't possible on Windows to select specific tests at all.
Review URL: https://codereview.chromium.org/1348653003
Cr-Commit-Position: refs/heads/master@{#30794}
Enhance the perf runner to run with the profiler and print the summary for each d8 run. This automates running the profiler with multiple benchmarks.
BUG=None
LOG=N
TBR=machenbach@chromium.org
Review URL: https://codereview.chromium.org/1327033003
Cr-Commit-Position: refs/heads/master@{#30720}
This moves scavenging functionality into a separate component so that
neither the scavenger nor objects-visiting need to be exposed outside
the heap.
R=hpayer@chromium.org,mlippautz@chromium.org
Review URL: https://codereview.chromium.org/1323993004
Cr-Commit-Position: refs/heads/master@{#30712}
Replace the ADD, SUB, etc. builtins with proper runtime implementations,
and expose them as runtime calls that can be used by the code stubs and
the interpreter (for now).
Also remove all the support runtime functions for ADD, SUB and friends,
namely %NumberAdd, %NumberSub, and so on.
R=mstarzinger@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux_layout_dbg,v8_linux_nosnap_dbg
Review URL: https://codereview.chromium.org/1333843002
Cr-Commit-Position: refs/heads/master@{#30680}
This moves incremental marking steps from gc-idle-time-handler and heap to the new incremental marking task.
BUG=chromium:490559
LOG=NO
Review URL: https://codereview.chromium.org/1265423002
Cr-Commit-Position: refs/heads/master@{#30641}
- Modify js2c to accept --js and --nojs,
- modify mksnapshot to accept --startup_src
(instead of a positional parameter, so that it can be omitted),
- modify v8.gyp to use the above so that no target has multiple
output dependencies, and
- update GN to use the switches above.
(I have not succeeded in fixing the GYP->make translator to properly map
multi-output rules, so that they work as expected in all edge cases.
This CL signals defeat on that front, and instead I rewrite the GYP
file to avoid that situation in the first place.)
R=jochen@chromium.org
BUG=v8:4382
LOG=N
Review URL: https://codereview.chromium.org/1310273009
Cr-Commit-Position: refs/heads/master@{#30640}
This enables the general linter checking for "build/c++11" violations
during presubmit and instead marks the few known exceptions that we
allow explicitly.
R=jochen@chromium.org
Review URL: https://codereview.chromium.org/1317463007
Cr-Commit-Position: refs/heads/master@{#30621}
This information can be used on the buildbot side to only
rebuild the failing target for bisection.
BUG=chromium:511215
LOG=n
NOTRY=true
Review URL: https://codereview.chromium.org/1313353006
Cr-Commit-Position: refs/heads/master@{#30617}
{AtomicValue}: A simple integer value that can be atomically
read/set/incremented.
{AtomicEnumSet}: Similar to EnumSet this set basically represents an atomic
bitfield based on enums. Atomic operations guarantee that setting one bit does
not race with setting other bits.
{AtomicEnumFlag}: A flag that is based on an enum that can be read and
(attempted to be) changed atomically.
BUG=chromium:524425
LOG=N
Review URL: https://codereview.chromium.org/1310993004
Cr-Commit-Position: refs/heads/master@{#30560}
Note that this is only pulling out the bookkeeping side of things, the
marking visitor that actually records the statistics should also move
into the ObjectStats class. That will be done as a follow-up.
R=mlippautz@chromium.org
Review URL: https://codereview.chromium.org/1326793002
Cr-Commit-Position: refs/heads/master@{#30547}
Walk asm.js module ASTs, attach concrete type information
in preparation for generating a WASM module.
cctest test coverage (mjsunit coming in later CL).
Expressions, function tables, and foreign functions have coverage.
Statement coverage to be expanded in a later CL.
BUG= https://code.google.com/p/v8/issues/detail?id=4203
TEST=test-asm-validator
R=rossberg@chromium.org,titzer@chromium.org
LOG=N
Review URL: https://codereview.chromium.org/1322773002
Cr-Commit-Position: refs/heads/master@{#30520}
This turns the absolute list of linter rules within the presubmit.py
wrapper into a list relative to the default of the cpplint.py script.
This has the advantage that new rules are picked up when the script is
updated and that allowed violations are visible from the list.
R=machenbach@chromium.org
Review URL: https://codereview.chromium.org/1325833005
Cr-Commit-Position: refs/heads/master@{#30513}
This CL us a pure refactoring that makes an empty compilation unit
including just "isolate.h" or "contexts.h" but not "objects-inl.h"
compile without warnings or errors. This is needed to further reduce
the header dependency tangle.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1322883002
Cr-Commit-Position: refs/heads/master@{#30500}
This data structure uses the public heap API only and is not specific
to any heap internals. It should be usable throughout V8 and inclusion
of the header file should not be restricted.
R=titzer@chromium.org
Review URL: https://codereview.chromium.org/1320503004
Cr-Commit-Position: refs/heads/master@{#30443}
