port 2491a639bf (r26463)
original commit message:
Externalize deoptimization reasons.
1) The hardcoded strings were converted into DeoptReason enum.
2) Deopt comment were converted into a pair location and deopt reason entries so
the deopt reason tracking mode would less affect the size of the RelocInfo table and heap.
3) DeoptReason entry in RelocInfo reuses kCommentTag value and generates short entry in RelocInfo table.
BUG=
Review URL: https://codereview.chromium.org/867243005
Cr-Commit-Position: refs/heads/master@{#26526}
port 6fc97a1965 (r26420)
original commit message:
Retry "Use a WeakCell in the CallIC type vector."
The first try failed because I needed to make a better distinction
between clearing ICs according to policy at GC time or unconditional
clearing (say, via %ClearFunctionTypeFeedback).
It was also blocked by an issue in super constructor calls.
This fix (https://codereview.chromium.org/892113002/) needs to land
before checking in this CL.
BUG=
R=weiliang.lin@intel.com
Review URL: https://codereview.chromium.org/865713004
Cr-Commit-Position: refs/heads/master@{#26517}
Adds Switch and Case operators to TurboFan and handles them
appropriately in instruction selection and code generation.
BUG=v8:3872
LOG=n
Review URL: https://codereview.chromium.org/892513003
Cr-Commit-Position: refs/heads/master@{#26515}
port c7851da4ae (r26419)
original commit message:
Introduce LanguageMode, drop StrictMode.
This enables adding more language modes in the future.
For maximum flexibility, LanguageMode is a bitmask, so we're not restricted to
use a sequence of language modes which are progressively stricter, but we can
express the language mode as combination of features.
For now, LanguageMode can only be "sloppy" or "strict", and there are
STATIC_ASSERTS in places which need to change when more modes are added.
LanguageMode is a bit like the old LanguageMode when "extended" mode was still
around (see https://codereview.chromium.org/8417035 and
https://codereview.chromium.org/181543002 ) except that it's transmitted through
all the layers (there's no StrictModeFlag).
BUG=
R=weiliang.lin@intel.com
Review URL: https://codereview.chromium.org/902053005
Cr-Commit-Position: refs/heads/master@{#26514}
port 64f81870ee (r26414)
original commit message:
Super Constructor Calls need to use a vector slot, not an ic slot.
The Ast Call node is accustomed to using a vector IC slot for the
cases when it uses a CallIC. The super constructor work alters this
somewhat by using a CallConstructStub instead, however the
CallConstructStub expects a vector slot and not a vector ic slot.
This distinction needs to be maintained because slots and ic slots
have different clearing strategies and are handled differently.
BUG=
R=weiliang.lin@intel.com
Review URL: https://codereview.chromium.org/911513002
Cr-Commit-Position: refs/heads/master@{#26511}
port 16843e239d (r26381)
original commit message:
Megamorphic KeyedLoadIC needs special handling for vector ics.
When --vector-ics is true, we still tail-call to the hand-written
megamorphic KeyedLoadIC (formerly "generic"). Now that this code uses
the megamorphic cache, it needs to deal properly with the vector and
slot registers. Achieve this with a sentinel vectors/slot combo.
BUG=
R=weiliang.lin@intel.com
Review URL: https://codereview.chromium.org/910623002
Cr-Commit-Position: refs/heads/master@{#26508}
port c65ae4f10c (r26346).
fix one spelling error introduced by this CL.
original commit message:
Reland "Initial switch to Chromium-style CHECK_* and DCHECK_* macros.".
BUG=
Review URL: https://codereview.chromium.org/886833006
Cr-Commit-Position: refs/heads/master@{#26507}
port 0deaa4b629 (r26340)
(code change in full-codegen-x87.cc is covered by r26340 ).
original commit message:
Initial switch to Chromium-style CHECK_* and DCHECK_* macros.
BUG=
Review URL: https://codereview.chromium.org/903353002
Cr-Commit-Position: refs/heads/master@{#26504}
port b18ad51079 (r26291)
original commit message:
additionally, make the interface match the JSFunction interface
BUG=
Review URL: https://codereview.chromium.org/906743002
Cr-Commit-Position: refs/heads/master@{#26503}
port 2a567faa3e (r26290)
original commit message:
Use a trampoline stub to load the type feedback vector for CallICs.
BUG=
Review URL: https://codereview.chromium.org/905983002
Cr-Commit-Position: refs/heads/master@{#26502}
port c7b09aac31 (r26252)
original commit message:
Along the way:
- Thread isolate parameter explicitly through code that used to
rely on getting it from the zone.
- Canonicalize the parameter position of isolate and zone for
affected code
- Change Hydrogen New<> instruction templates to automatically
pass isolate
BUG=
R=weiliang.lin@intel.com
Review URL: https://codereview.chromium.org/903183003
Cr-Commit-Position: refs/heads/master@{#26501}
We incorrectly disallowed eval and arguments in accessor and method
names. This was because we checked the name inside the
ParseFunctionLiteral. We now flag accessors so that lazy parsing of
these functions are treated correctly.
BUG=v8:1984
R=adamk, dslomov@chromium.org
LOG=N
Review URL: https://codereview.chromium.org/899363002
Cr-Commit-Position: refs/heads/master@{#26497}
This adds an "experimental" API hook (v8::ScriptCompiler::CompileModule)
allowing compilation of modules. The code gen is incredibly basic: the
module body is represented by a Block in the AST. But this at least gets
more of the pipeline working, and opens the door to writing mjsunit tests
(once d8 is modified to support module compilation).
BUG=v8:1569
LOG=n
Review URL: https://codereview.chromium.org/902093002
Cr-Commit-Position: refs/heads/master@{#26496}
Previously it just had hacks to have NULLs instead of them and pretended to know
nothing about Zone. The hacks provide no real benefit (probably historically
based on some weird misconception about the relationship between Zone and
Isolate), and make it harder for the PreParser to start to know more about
variables and scoping.
BUG=
Review URL: https://codereview.chromium.org/909463003
Cr-Commit-Position: refs/heads/master@{#26494}
