These are SSE instructions that deal with scalar single precision
values, and look like the packed single precision variant of the
instructions, but with a prefix.
E.g. sqrtps is NP 0F 51, sqrtss is F3 0F 51.
Bug: v8:9810
Change-Id: I417ea6d4d85d8618ad6602a1b32d4428db0d66d2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1874509
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64658}
... since we may be in the background. Print the HeapObjectRef instead,
which will read the heap when it's allowed to do so.
Bug: v8:9541
Change-Id: I201c6dcd83e1b050393d633e4d59aec636772da6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1889876
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64655}
This fixes the streaming decoder to report the correct error position
for repeating code sections (i.e. only one code section per module).
R=clemensb@chromium.org
Change-Id: Ie02d704d74b4e051fa9b00288dd6d1e46e2418a5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1890094
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64654}
Each run of {OnFinishedUnits} can only trigger baseline completion or
top tier completion at most once, so we can pull the call out of the
loop.
R=ahaas@chromium.org
Change-Id: I7eaf42addbbaa9600cb9bf95dce76399be683971
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1889879
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64653}
Port b875f4661a
Original Commit Message:
This is a reland of 4a16305b65
The original CL adjust only one part of the stack check, namely the
comparison of the stack pointer against the stack limit in generated code.
There is a second part: Runtime::kStackGuard repeats this check to
distinguish between a stack overflow and an interrupt request.
This second part in runtime must apply the offset just like in generated
code. It is implemented in this reland by the StackCheckOffset operator
and a new StackGuardWithGap runtime function.
Original change's description:
> [compiler] Optionally apply an offset to stack checks
>
> The motivation behind this change is that the frame size of an optimized
> function and its unoptimized version may differ, and deoptimization
> may thus trigger a stack overflow. The solution implemented in this CL
> is to optionally apply an offset to the stack check s.t. the check
> becomes 'sp - offset > limit'. The offset is applied to stack checks at
> function-entry, and is set to the difference between the optimized and
> unoptimized frame size.
>
> A caveat: OSR may not be fully handled by this fix since we've already
> passed the function-entry stack check. A possible solution would be to
> *not* skip creation of function-entry stack checks for inlinees.
>
> This CL: 1. annotates stack check nodes with the stack check kind, where
> kind is one of {function-entry,iteration-body,unknown}. 2. potentially
> allocates a temporary register to store the result of the 'sp - offset'
> in instruction selection (and switches input registers to 'unique'
> mode). 3. Applies the offset in code generation.
>
> Drive-by: Add src/compiler/globals.h for compiler-specific globals.
>
> Bug: v8:9534,chromium:1000887
> Change-Id: I257191c4a4978ccb60cfa5805ef421f30f0e9826
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762521
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63701}
R=jgruber@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N
Change-Id: I37bf1d9157a96a5d3538108703f2d7469a11bffe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1890535
Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#64652}
This CL removes a GC invocation which might not be needed anymore.
This CL picks up on a previous attempt to remove this invocation:
crrev.com/c/928241
Bug: chromium:1005906, chromium:1019613
Change-Id: I487b5bfd51532fe60cd71444b53874f20eecdf16
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1883566
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64651}
In the case where we fail on the 'before register allocation' phase,
we will have the instructions to print, but turbolizer will fail to
show them because it will look for the non-existent offsets.
Bug: v8:7327
Change-Id: I52e520dcb662fe9931f1bb29cd2c16cd62913158
Notry: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1889883
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64650}
Test for the HeapConstant reduction.
Move heap_constants to a scope where it can be reused by other tests.
Bug: v8:7703
Change-Id: I1da1dd7ad65670980867aa5319b96cc9c701c5a2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1876064
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64648}
Some tools that transform Wasm today, already support encoding the
transforms and correctly updating locations in source maps, but not yet
in DWARF (although this is being worked on).
Until they catch up, it's best to consistently prefer source maps over
DWARF when both are present, and not just rely on order of sections as
accidentally done in the previous CL that introduced DWARF info.
Ref: crrev.com/c/v8/v8/+/1834341
Bug: chromium:1016772
Change-Id: I769311e2096ae0e4ca304bef0a0453c7e0776aae
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1888930
Commit-Queue: Ingvar Stepanyan <rreverser@google.com>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64647}
The same functionality can be achieved by just setting a breakpoint in
that function.
R=ahaas@chromium.org
Bug: v8:9810
Change-Id: Ieb5e99b5c2f0b492e32e75cae0c0b9292accd932
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1888072
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64646}
Temporarily enable the flag to test the performance of the
DecompressionOptimization reducer.
Bug: v8:7703
Change-Id: Ia55d732a73f2aef7ef6e3da329c19b2752a41459
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1890091
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64642}
The test was originally skipped due to slowness. This might have been
fixed by reduced store-store zone allocations (see the linked bug).
Locally, this now runs in less than 20 seconds in full x64 debug mode.
The largest zone is < 100MB:
12089344, "V8.TFAllocateGeneralRegisters"
21954208, "graph-zone"
26181688, "../../src/compiler/verifier.cc:2000"
57895456, "instruction-zone"
98933872, "register-allocation-zone"
Drive-by: Remove tsan SLOW annotation, it's already marked SLOW in the
ALWAYS block.
Bug: v8:9572
Change-Id: Ic3ffd3de732e262f412f1d7a66448ea7228582f2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1889872
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64641}
It was used only with Register inputs, so we can replace its uses with
the Registers themselves.
Change-Id: I1ea3ed88ee41177b696a7281cdf3b90fefdc5870
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1886916
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64639}
Smi checks get lowered to Word32And, so they are important to consider
in the reducer.
Bug: v8:7703
Change-Id: Ie6e2403db84f83808edcc1e44ecb60ecd72ae34d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1876053
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64638}
Effect control linearization knows about compressed values only when
DecompressionElimination is active.
Bug: v8:7703
Change-Id: I7854488322f846f94c644e057ab1c32641adf662
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1883896
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64637}
Change SlotSet representation to a variable-sized array of pointers to
buckets. The length of the array/number of buckets depends on the size
of the page.
Before this change the SlotSet always stored a fixed number of
buckets. Large pages needed a SlotSet-Array to cover the whole object.
Now both regular and large pages both use a single SlotSet object,
which contains all bucket pointers.
Change-Id: I2d8d62fad54b58409cd39ae7a52c64497ee7c261
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1876811
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64635}
This is a reland of 4a16305b65
The original CL adjust only one part of the stack check, namely the
comparison of the stack pointer against the stack limit in generated code.
There is a second part: Runtime::kStackGuard repeats this check to
distinguish between a stack overflow and an interrupt request.
This second part in runtime must apply the offset just like in generated
code. It is implemented in this reland by the StackCheckOffset operator
and a new StackGuardWithGap runtime function.
Original change's description:
> [compiler] Optionally apply an offset to stack checks
>
> The motivation behind this change is that the frame size of an optimized
> function and its unoptimized version may differ, and deoptimization
> may thus trigger a stack overflow. The solution implemented in this CL
> is to optionally apply an offset to the stack check s.t. the check
> becomes 'sp - offset > limit'. The offset is applied to stack checks at
> function-entry, and is set to the difference between the optimized and
> unoptimized frame size.
>
> A caveat: OSR may not be fully handled by this fix since we've already
> passed the function-entry stack check. A possible solution would be to
> *not* skip creation of function-entry stack checks for inlinees.
>
> This CL: 1. annotates stack check nodes with the stack check kind, where
> kind is one of {function-entry,iteration-body,unknown}. 2. potentially
> allocates a temporary register to store the result of the 'sp - offset'
> in instruction selection (and switches input registers to 'unique'
> mode). 3. Applies the offset in code generation.
>
> Drive-by: Add src/compiler/globals.h for compiler-specific globals.
>
> Bug: v8:9534,chromium:1000887
> Change-Id: I257191c4a4978ccb60cfa5805ef421f30f0e9826
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762521
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63701}
Bug: v8:9534, chromium:1000887
Change-Id: I71771c281afd7d57c09aa48ea1b182d01e6dee2a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1822037
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64634}
{Smi::ToInt} has only one character more.
R=mstarzinger@chromium.org
Bug: v8:9810
Change-Id: I1e91bb3623a354ceeee1dc93822011a6809281d5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1886922
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64633}
This is the first step in unification of concurrent and main thread
marking visitors. The new MarkingVisitorBase will become a base class
for all marking visitors and will remove the existing code duplication.
This is a refactoring without behavior change.
Subsequent CL will change the main thread marking visitor to derive
from the new base class.
Bug: chromium:1019218
Change-Id: I3d47030d396e0ba6706882fbd922bbcac46181b2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1886920
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64632}
The macros were probably duplicated when splitting off
liftoff-assembler.cc from liftoff-compiler.cc, but are dead now.
R=mstarzinger@chromium.org
Bug: v8:9810
Change-Id: I668ce598815c45cc690653b5a12d90ab44937204
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1888070
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64631}
Start experiment with promoting all young live objects during
mark-compact. This CL sets always_promote_young_mc to true by default.
Change-Id: I306527ad2a361fc3e0edcf684c5ccec2b1d6e491
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1879938
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64630}
The `capture_ix` refers to all captures while `capture_count` only
refers to named captures. Clarified by renaming `capture_count` to
`named_capture_count` and removing the incorrect part of the DCHECK.
The `>= 1` part of the condition must still hold since named captures
can only refer to explicit capture groups, which start at index 1.
Tbr: petermarshall@chromium.org
Bug: chromium:1018592
Change-Id: If8a26f6661ba0483d585f74270b3b4a3853e2ca8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1886810
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64629}
Also we're not creating these any more via StringUtil in blink,
so these two helpers can go.
Change-Id: Ifdf700171ebc46cfbd6ce0af9a6f6ba73419a5a8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1887689
Auto-Submit: Johannes Henkel <johannes@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64626}
The new API with v8::BackingStore should be used instead as explained in
https://docs.google.com/document/d/1sTc_jRL87Fu175Holm5SV0kajkseGl2r8ifGY76G35k
This also relaxes the pre-condition for [Shared]ArrayBuffer::Detach to
not require externalization first.
Bug: v8:9380, v8:9908
Change-Id: Idd119fcd28be84a2fae74ae86f7381fd997766f5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1859628
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64625}
Changes introduced in 30ec6a8 generates compilation error in gcc 8.1.0:
8.1.0/include/c++/bits/stl_iterator_base_funcs.h:183:2:
error: no match for 'operator--' (operand type is
'v8::internal::HandlerTable::LookupReturn(int)::Iterator')
--__i;
Which maybe caused by the following change in stl_iterator_base_funcs:
https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=248875
Overloading the "--" operator fixes the compilation error.
Change-Id: I32f54ddd4993375bf905996b5b1e66cd005256da
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1888190
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64624}
This flag would help customers understand why Liftoff bails out, thus
make it available also in release builds.
R=jkummerow@chromium.org
Change-Id: Ie2f69cbeaee617632f772030a3e03f052f688a10
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1888071
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64622}
There are a couple of bugs here:
1. The immediate used for vinsertps is wrong when lane == 1, the first
two bits specify which element of the source is copied, and it should
always be 00, 01 to copy the first 2 lanes of source.
2. For both cases, the second insertps call should be using dst as the
src, since dst was already updated by the first insertps call, it was
incorrectly using the old value of src. This was probably working
correctly because in many cases dst and src happened to be the same
register.
3. rep cannot be same as dst, because dst is overwritten, and rep should
stay the same
I also modified the F64x2ReplaceLane to test separately for replacing
lane 0 and lane 1.
Fixed bug 3. for arm and arm64.
Bug: v8:9728
Change-Id: Iec6e48bcfbc7d27908dd86d5f113a8b5dedd499b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1877055
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64620}
New revision: d2fc9b958e1eeb1e956f3e2208afa9923bdc9b67
To roll this I need to update some call sites; this is because the
Serializable interface is changing.
Upstream change / review was here:
https://chromium-review.googlesource.com/c/deps/inspector_protocol/+/1879870
Change-Id: I93c4747609c6003baf1c160a68b8fb6bb07ac565
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1879519
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64618}
CallDebugOnFunctionCall was always using Registers and not Immediates.
Then ParameterCount is not really needed. Since updating that, we
could update other functions, e.g InvokeFunction, to only use
registers too.
Also removed now irrelevant variables, e.g definitely_mismatches.
Bug: v8:9771
Change-Id: I83382c146dd47ccb8bb329f5becb5e941e4c3968
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871605
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64616}
Inlines UpdateEffectControlWith and AddClonedNode in GraphAssembler to address
a regression in some benchmarks caused by Add the ability for GraphAssembler
to update basic blocks.
BUG=chromium:1018661,v8:9684
Change-Id: I05513c13305465310552448192e0474f5aaa4a20
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1886917
Auto-Submit: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64615}
This adds some arguments to trace events to better see whether large
times spent in these events are reasonable.
R=mstarzinger@chromium.org
Change-Id: I6097d988875d4911aff9741a1ed16590a442f60b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1886912
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64614}
When inlined allocations are disabled, the space->limit() does not point to the
end of the current page. Instead, it points to the current allocation pointer so
is the same as space->top().
See how the limit is computed, if heap()->inline_allocation_disabled(), then the
limit will be the same as the requested allocation area:
```
Address SpaceWithLinearArea::ComputeLimit(Address start, Address end,
size_t min_size) {
DCHECK_GE(end - start, min_size);
if (heap()->inline_allocation_disabled()) {
// Fit the requested area exactly.
return start + min_size;
} else if (SupportsInlineAllocation() && AllocationObserversActive()) {
// ...
} else {
// The entire node can be used as the linear allocation area.
return end;
}
}
```
If we want to simulate filling up a whole page in the new space, we can instead
look at the ToSpace's page_high() which will be the end of the current page in
which we're allocating.
Bug: v8:9906
Change-Id: I81113d151bc083cd22d17ea1a4fbae7fef9dff6d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1886914
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Pierre Langlois <pierre.langlois@arm.com>
Cr-Commit-Position: refs/heads/master@{#64612}
