Port 2027335f1c
Original commit message:
Note that there are currently no objects that require a pre-allocated
properties backing store, all such slots are in-object properties from
the begining. Hence {unused + pre_allocated - inobject == 0} holds.
BUG=
Review URL: https://codereview.chromium.org/1226363003
Cr-Commit-Position: refs/heads/master@{#29610}
This also adds a script to the tools directory that allows to grep for
unused bailout reasons. For now the script needs to be run manually.
R=mvstanton@chromium.org
Review URL: https://codereview.chromium.org/1237623003
Cr-Commit-Position: refs/heads/master@{#29609}
- split relocation info for debug break slots for
- calls (with call arguments count as data)
- construct calls
- normal slots
- renamed DEBUG_BREAK into DEBUGGER_STATEMENT
- removed unused IC state for Debug stubs
R=ulan@chromium.org
BUG=v8:4269
LOG=N
Review URL: https://codereview.chromium.org/1232803002
Cr-Commit-Position: refs/heads/master@{#29603}
The JSContextSpecialization should only care about loads from the
context and stores to the context, where the context is either a
HeapConstant or the special context Parameter (and a context for the
outer most function is provided). This way we don't eagerly embed
arbitrary context constants for no benefit, but we still specialize the
loads and store which we actually care about.
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/1227963005
Cr-Commit-Position: refs/heads/master@{#29602}
Reason for revert:
[Sheriff] This changes lots of layout tests. See comment on CL.
Original issue's description:
> Enable loads and stores to global vars through property cell shortcuts installed into parent script context.
>
> Committed: https://crrev.com/cd61b047f1ab92c353a629556f9d3ad571ace1b1
> Cr-Commit-Position: refs/heads/master@{#29595}
TBR=verwaest@chromium.org,ishell@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1236863002
Cr-Commit-Position: refs/heads/master@{#29599}
Up until now we were unable to have profiler ticks beyong 255, which
basically disabled OSR for moderately large functions.
BUG=chromium:508741
LOG=n
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1224173003
Cr-Commit-Position: refs/heads/master@{#29597}
Until now, TF-generated code stubs piggy-backed off of the builtin
context. Since generation of code stubs is lazy, stubs generated at
different times in different native contexts would contain embedded
pointers different builtin contexts, leading to cross-context references
and memory leaks.
After this CL, all TF-generated code stubs are generated inside a
internal thinned-out, native context that lives solely for the
purpose of hosting generated code stubs.
Review URL: https://codereview.chromium.org/1213203007
Cr-Commit-Position: refs/heads/master@{#29593}
This CL also adds hydrogen stubs for global loads and global stores, full-codegen and TurboFan now uses this machinery.
Review URL: https://codereview.chromium.org/1224793002
Cr-Commit-Position: refs/heads/master@{#29592}
Note that there are currently no objects that require a pre-allocated
properties backing store, all such slots are in-object properties from
the begining. Hence {unused + pre_allocated - inobject == 0} holds.
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/1226203011
Cr-Commit-Position: refs/heads/master@{#29590}
Some TurboFan instructions block the literal pool for their entire
duration. If a long enough sequence of these instructions is
encountered, the literal pool can be blocked until it goes out of range.
Patch from issue 1236603002 at patchset 1 (http://crrev.com/1236603002#ps1).
BUG=v8:4292
LOG=y
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1232343002
Cr-Commit-Position: refs/heads/master@{#29587}
Reduce Float64 comparison to Float32 when both inputs are conversions from
Float32.
Review URL: https://codereview.chromium.org/1235663002
Cr-Commit-Position: refs/heads/master@{#29586}
Port 8965b683ce
Original commit message:
Break point at calls are currently set via IC. To change this, we
need to set debug break slots instead. We also need to distinguish
those debug break slots as calls to support step-in.
To implement this, we add a data field to debug break reloc info to
indicate non-call debug breaks or in case of call debug breaks, the
number of arguments. We can later use this to find the callee on the
evaluation stack in Debug::PrepareStep.
R=yangguo@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1231173002
Cr-Commit-Position: refs/heads/master@{#29582}
Do the check in release mode, too. Prefer crash over mis-patched
branch instruction.
BUG=v8:4294
LOG=N
Review URL: https://codereview.chromium.org/1233623004
Cr-Commit-Position: refs/heads/master@{#29581}
For now it uses a pretty slow path for accessing strings by wrapping it into a new temporary wrapper.
BUG=v8:4042, v8:3088
LOG=y
Review URL: https://codereview.chromium.org/1221303019
Cr-Commit-Position: refs/heads/master@{#29576}
- we now have 6 bits to store RelocInfo mode.
- removed a redundant tag byte per long reloc info entry.
- renamed methods to be more precise.
Review URL: https://codereview.chromium.org/1230183002
Cr-Commit-Position: refs/heads/master@{#29573}
This allows running two executables interleaved to reduce
flakiness of tryjobs. The executables must reside in
different out directories.
BUG=chromium:507213
LOG=n
NOTRY=true
TEST=python -m unittest run_perf_test
Review URL: https://codereview.chromium.org/1215273003
Cr-Commit-Position: refs/heads/master@{#29572}
EnumtSet has been deprecated for quite some time, and replaced with the
more general and type safe base::Flags template class.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1229233002
Cr-Commit-Position: refs/heads/master@{#29564}
