The handwritten-assembly implementations of both dispatcher and
generic stub have been replaced by Turbofan-generated stubs.
Review-Url: https://codereview.chromium.org/2523473002
Cr-Commit-Position: refs/heads/master@{#41188}
The reasons are:
1) Type feedback vectors are not shared between different native contexts and
therefore the IC handler created for one native context will not be reused
in other native context.
2) Access rights revocation is not supported at all, therefore given (1) once
we pass the access check we don't have to check access rights again.
BUG=v8:5561
Review-Url: https://codereview.chromium.org/2455953002
Cr-Commit-Position: refs/heads/master@{#40627}
These intrinsics are unused now, and so we can drop all the code in
fullcodegen and Crankshaft that deals with those. TurboFan and Ignition
never tried to optimize those.
R=mstarzinger@chromium.org
BUG=v8:5049
Review-Url: https://codereview.chromium.org/2427673004
Cr-Commit-Position: refs/heads/master@{#40401}
This reverts commit 7db0ecdec3.
Manual revert since automatic revert is too large for the web interface.
BUG=
TBR=bmeurer@chromium.org,mstarzinger@chromium.org,yangguo@chromium.org,ahaas@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
Review-Url: https://codereview.chromium.org/2396353002
Cr-Commit-Position: refs/heads/master@{#40082}
This way we avoid the cyclic dependency between objects.h and heap.h and still
have one definition. Add a static assert that this size is indeed smaller than
the payload of a page.
Follow ups can finally remove the dependency on spaces.h for all heap.h users.
R=ulan@chromium.org,bmeurer@chromium.org,vogelheim@chromium.og
Review-Url: https://codereview.chromium.org/2311203002
Cr-Commit-Position: refs/heads/master@{#39206}
Port 5e05854019
Original commit message:
The reason for reverting is: This breaks gc-stress bot:
https://chromegw.corp.google.com/i/client.v8/builders/V8%20Linux64%20GC%20Stress%20-%20custom%20snapshot
Abortion of compaction could cause duplicate entries in the typed-old-to-new remembered set.
These duplicates could cause a DCHECK to trigger which checks that slots recorded in the
remembered set never point to to-space. This reland-CL allows duplicates in the remembered
set by removing the DCHECK, and additionally clears entries in the remembered set if objects are moved.
Original issue's description:
Cells were needed originally because there was no typed remembered set to
record direct pointers from code space to new space. A previous
CL (https://codereview.chromium.org/2003553002/) already introduced
the remembered set, this CL uses it.
This CL
* stores direct pointers in code objects, even if the target is in new space,
* records the slot of the pointer in typed-old-to-new remembered set,
* adds a list which stores weak code-to-new-space references,
* adds a test to test-heap.cc for weak code-to-new-space references,
* removes prints in tail-call-megatest.js
R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com
BUG=
LOG=N
Review-Url: https://codereview.chromium.org/2108673003
Cr-Commit-Position: refs/heads/master@{#37346}
Port 974721c661
Original commit message:
Introduce a ResumeGeneratorTrampoline, which does the actual stack state
reconstruction (currently always restores a fullcodegen frame), and
introduce appropriate TurboFan builtins for %GeneratorPrototype%.next,
%GeneratorPrototype%.return and %GeneratorPrototype%.throw based on
this native builtin.
Also unify the flooding in case of step-in to always work based on
JSFunction and remove the special casing for JSGeneratorObject.
R=bmeurer@chromium.org, joransiu@ca.ibm.com, mbrandy@us.ibm.com, michael_dawson@ca.ibm.com, bjaideep@ca.ibm.com
BUG=chromium:513471
LOG=n
Review URL: https://codereview.chromium.org/1870483002
Cr-Commit-Position: refs/heads/master@{#35316}
In test regress-492.js, the return sequence require to adjust sp to
sp + 513 * 8 bytes, which causes overflow of the displacement in LA.
R=michael_dawson@ca.ibm.com,mbrandy@us.ibm.com,joransiu@ca.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1865443002
Cr-Commit-Position: refs/heads/master@{#35267}
Mask used in MacroAssembler::TestJSArrayForAllocationMemento was not supposed
to shifted right by 16 bits before loaded in to register r0.
R=michael_dawson@ca.ibm.com,mbrandy@us.ibm.com,joransiu@ca.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1852403002
Cr-Commit-Position: refs/heads/master@{#35247}
The existing FloatFloor/Ceiling functions had an issue with handling
Number.MIN_VALUE (0x1 ==> 5e-324), and would incorrectly return
MIN_VALUE instead of 0/1. Simplify the entire sequence by using the
available hardware instruction with the appropriate rounding mode
(POS_INF for Ceiling, NEG_INF for Floor).
Add missing FIEBRA/FIDBRA cases to disassembler.
R=jyan@ca.ibm.com,michael_dawson@ca.ibm.com,mbrandy@us.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1853973002
Cr-Commit-Position: refs/heads/master@{#35239}
This reduces the reserved virtual memory size needed for the store buffer.
BUG=chromium:578883
LOG=NO
Review URL: https://codereview.chromium.org/1851473002
Cr-Commit-Position: refs/heads/master@{#35174}
Port b7aa4c3ab3
Original commit message:
Split ToNumberStub into the entry ToNumberStub, and two new stubs,
StringToNumberStub and NonNumberToNumberStub, which can be used when we
already know something about the input (i.e. in various branches of the
code stubs, or in TurboFan graphs).
Also introduce an appropriate StringToNumber simplified operator for
TurboFan, that is pure and is lowered to an invocation of the newly
added StringToNumberStub.
R=bmeurer@chromium.org, joransiu@ca.ibm.com, mbrandy@us.ibm.com, michael_dawson@ca.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1825593003
Cr-Commit-Position: refs/heads/master@{#35004}
Port 33c08596e1
Original commit message:
Int64Sub is lowered to a new turbofan operator, Int32SubPair. The new
operator takes 4 inputs an generates 2 outputs. The inputs are the low
word of the left input, high word of the left input, the low word of the
right input, and high word of the right input. The ouputs are the low
and high word of the result of the subtraction.
The implementation is very similar to the implementation of Int64Add.
R=ahaas@chromium.org, joransiu@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1807243002
Cr-Commit-Position: refs/heads/master@{#34865}
Original commit message:
Int64Add is lowered to a new turbofan operator, Int32AddPair. The new
operator takes 4 inputs an generates 2 outputs. The inputs are the low
word of the left input, high word of the left input, the low word of the
right input, and high word of the right input. The ouputs are the low
and high word of the result of the addition.
R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1807013002
Cr-Commit-Position: refs/heads/master@{#34840}
Upstream S390 platform specific code to latest lkgr from the past 2 weeks.
R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,joransiu@ca.ibm.com,michael_dawson@ca.ibm.com,mbrandy@us.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1799893002
Cr-Commit-Position: refs/heads/master@{#34787}
Initial commit with the bulk of the src/s390/* changes
along with associated changes to the build toolchain for
the new files.
A minor update to V8PRIuPTR definition for Mac OS X
affecting 32-bit S390 sim compilations.
R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,jyan@ca.ibm.com,michael_dawson@ca.ibm.com,mbrandy@us.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1725243004
Cr-Commit-Position: refs/heads/master@{#34331}
