Commit Graph

1833 Commits

Author SHA1 Message Date
Yuri Iozzelli
50d725f1e5 Implementation of the branch hinting proposal for WebAssembly.
See https://github.com/WebAssembly/branch-hinting for a description of
the proposal.

Change-Id: Ib6e980fc20aa750decabdeb9e281f502c9fe84ed
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2784696
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74569}
2021-05-14 13:40:57 +00:00
Manos Koukoutos
37579df74e [wasm] Complete element segment features for reftypes/typed-funcref
Main changes:
- Allow global.get in elements segments with expressions-as-elements.
- Allow element segments with types other than funcref.

Detailed changes:
- Move WasmInitExpr to its own file. Add stream opearator << support.
- Simplify type of PrintCollection.
- Make WasmElemSegment use an array of WasmInitExpr's over the previous
  ad-hoc implementation. Move null_index to WasmModuleBuilder.
- Refactor consume_element_segment_header. Make it return a
  WasmElemSegment.
- Refactor consume_element_expr. Make it return a WasmInitExpr.
- Refactor DecodeElementSection. Make it invoke
  consume_element_segment_header, then populate its element array.
- Update module-instantiate.cc to handle global.get elements.
- Fix bug in wasm-objects.cc where the wrong type index was passed into
  module()->has_signature()
- Adapt and add tests.

Change-Id: I5abfbe424dbb750ee2dca59f91c451ffcb79f95f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2857959
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74374}
2021-05-05 09:25:37 +00:00
Thibaud Michaud
620da72cef [wasm][eh] Make stack overflows uncatchable
R=jkummerow@chromium.org

Change-Id: Ibc772d81765e10331fa8753e8b7dfd3d18509819
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2859864
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74333}
2021-05-03 16:18:41 +00:00
Thibaud Michaud
d4c3c1a5ea [cctest][wasm] Ensure FLAG_stack_size has an effect
Some cctests set the FLAG_stack_size in the TEST() macro which is run
after the cctest runner initializes the main isolate. The flag is only
used during isolate initialization, so this did not have any effect.

This fixes it by using the UNINITIALIZED_TEST() macro, creating the
isolate after setting the flag and passing it through to the WasmRunner.

See also https://crrev.com/c/2862778 which fixes JS cctests.

R=jkummerow@chromium.org

Change-Id: I46df22b80a283d93c48c1dbd250eb3e4ea5ad4a0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2865749
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74331}
2021-05-03 14:24:46 +00:00
Clemens Backes
6ad860b3ec [wasm][cleanup] Hold wasm engine in a raw pointer
After the --wasm-shared-engine flag was removed (in
https://crrev.com/c/1864935), there is no point any more in holding the
wasm engine in a shared_ptr. The engine is initialized once for the
whole process, and only deallocated during global tear down.

R=jkummerow@chromium.org

Bug: v8:11384
Change-Id: Id8e96eaecfcab8b44842ec323c94529e9c5a5e25
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2853589
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74253}
2021-04-28 15:08:10 +00:00
Deepti Gandluri
c4468c39f0 [wasm-simd] Remove simd lowering compilation env variable
Bug: v8:11613
Change-Id: I25bf720164129c3d95ebc07d0c2a0f6e6b8ee9af
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2847473
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74131}
2021-04-22 23:40:58 +00:00
Deepti Gandluri
39e32ac94a [wasm-simd] Remove the scalar lowering pass
Bug: v8:11613
Change-Id: Ica7fe5ca63fa3729614eb09ace26e679a88577ac
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826728
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74051}
2021-04-19 20:52:03 +00:00
Daniel Lehmann
8fffd56f86 [wasm] Allow execution while modifying code space
The --wasm-write-protect-code-memory flag previously enforced W^X, that
is the WebAssembly code space was either writable or executable, but
never both at the same time. With compilation in background threads
concurrent to execution in the main thread, this simple scheme is no
longer viable because the same memory page can indeed be written to and
executed at the same time. Hence, this flag is currently broken and
disabled and the code space is always writable AND executable.

As a first step towards more security, we at least want to
write-protect the code space (when not required writable by compilation
threads) but at the same time keep it always executable (because of
concurrent execution in the main thread). That is, we no longer switch
between RX and RW (W^X), but rather between RX and RWX
(write-protection only).

This CL starts to change from W^X (which was broken) to
write-protection only when enabling --wasm-write-protect-code-memory.
This is the first of two CLs, where the followup CL will fix the
feature, and this CL merely prepares and cleans up the code. In
particular, this CL changes the permissions from RW to RWX (due to
concurrent execution) and renames `WasmCodeAllocator::SetExecutable()`
to `WasmCodeAllocator::SetWritable()` (and similarly named callers) to
be consistent with that change. Since the code space is now always
executable, this CL also removes now unneeded calls to
`SetExecutable(true)` in tests.

R=clemensb@chromium.org
CC=​​jkummerow@chromium.org

Bug: v8:11663
Change-Id: I2065eed6770215892b81daefbddf74a349e783cc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2835237
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Daniel Lehmann <dlehmann@google.com>
Cr-Commit-Position: refs/heads/master@{#74041}
2021-04-19 15:09:46 +00:00
Jakob Kummerow
7d63260e9f [test][wasm][arm64] Fix JumpTablePatchingStress
This test attempted to call mprotect to switch memory permissions,
which returns an error on MacOS on arm64. The workaround is simple:
don't call mprotect, rely on MacOS-specific permission switching.

See also https://chromium-review.googlesource.com/c/v8/v8/+/2679688
for a related fix in non-test code.

Drive-by: fix host arch detection in gm.py when building on M1 Macs.

Bug: v8:11657
Change-Id: I9b59ee8f2279e28f7561ac071df27508211741f3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831877
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74030}
2021-04-19 12:20:03 +00:00
Thibaud Michaud
60dfe6512c [wasm][liftoff] Fix indexing in loop stack check
The "num_exceptions" field of the control block must be updated before
entering the stack check, because it is used in
"GetCurrentDebugSideTable" to compute the correct indices for the debug
side table.

R=clemensb@chromium.org

Bug: chromium:1199526
Change-Id: I54f1e4244bf84d0a78b47a764fedc83b54758d01
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831483
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74003}
2021-04-16 14:24:15 +00:00
Manos Koukoutos
e1cae86eba [wasm-gc] Implement function subtyping
Changes:
- Implement function subtyping in wasm-subtyping.cc.
- Add Signature::Build(), which takes initializer lists for the return
  and parameter types.
- Only throw kTrapFuncSigMismatch in call_indirect, change that trap's
  message.
- Add a missing "return 0" in function-body-decoder-impl.h
- Fix a faulty check in wasm-objects.cc.
- Improve some comments.
- Write tests. Improve readability of subtyping-unittest.

Bug: v8:7748
Change-Id: I1caba09d5bd01cfd4d6125f300cd9c16af7aba99
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2822633
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73972}
2021-04-15 11:01:05 +00:00
Ng Zhi An
9d3f354527 [wasm-simd][ia32][x64] Fix swizzle with constant masks
We optimized swizzle with constant mask, but failed to actually swizzle
using the masks...

Bug: v8:10992
Change-Id: If655fdad1e17e92b62e8a2eaabbf1f8d82e4d5e4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2822951
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73943}
2021-04-13 22:49:36 +00:00
Manos Koukoutos
524f41db67 [wasm] Remove multivalue feature flag
Multivalue has been shipped for a while now, so it is time to remove
its experimental feature flag.

Additional change: Set kV8MaxWasmFunctionReturns to the old
kV8MaxWasmFunctionMultiReturns value.

Change-Id: I5c4d33b036e64a7221de17f0e97119bb0a036838
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2817790
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73927}
2021-04-13 06:35:34 +00:00
Thibaud Michaud
a04c6680e5 [wasm] Fix interpreter EH stack height bug
R=ahaas@chromium.org

Bug: chromium:1197408
Change-Id: I9a9ede5cf141cd7d19b67438465bcba35e2b87f6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2821543
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73918}
2021-04-12 18:00:33 +00:00
Michael Achenbach
b04f6a414d Revert "[wasm] Add CPU time metrics"
This reverts commit dcdaf42fa8.

Reason for revert: This has problems on mac-arm64:
https://ci.chromium.org/p/v8/builders/ci/V8%20Mac%20-%20arm64%20-%20release/3591

Original change's description:
> [wasm] Add CPU time metrics
>
> This adds CPU time metrics to the WasmModuleDecoded (except for streaming),
> WasmModuleCompiled and WasmModuleTieredUp events. This can later be used
> to provide this information as UKMs or UMAs.
>
> Bug: v8:11611
> Change-Id: I36818f5efbdcae2d3ed6f27c16db21f9d8440d98
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2796952
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Commit-Queue: Emanuel Ziegler <ecmziegler@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73882}

Bug: v8:11611
Change-Id: I1c82c3e4f19b3a486538fd62665669f6c5b98438
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2818380
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#73884}
2021-04-09 16:01:12 +00:00
Emanuel Ziegler
dcdaf42fa8 [wasm] Add CPU time metrics
This adds CPU time metrics to the WasmModuleDecoded (except for streaming),
WasmModuleCompiled and WasmModuleTieredUp events. This can later be used
to provide this information as UKMs or UMAs.

Bug: v8:11611
Change-Id: I36818f5efbdcae2d3ed6f27c16db21f9d8440d98
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2796952
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Emanuel Ziegler <ecmziegler@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73882}
2021-04-09 13:51:07 +00:00
Deepti Gandluri
aa13c15f19 [wasm-simd] Remove ScalarLoweringForTesting
Bug: v8:11613
Change-Id: Ib1ad2dc7bb7235b5f8ef5068a5d3175556d1a65b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806547
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73841}
2021-04-07 18:07:06 +00:00
Milad Fa
0d87df40c2 PPC [simd]: enable simd on PowerPC 9 and above
This includes the simulator, PPC64 Linux (little endian)
and PPC64 AIX (Big endian) running on P9.

Also enable the related simd tests for PPC64.

Qfma opcodes are added to the selector as part of the enablement.

Change-Id: Idf2bf2eaa9cee489e7315031976bc412358b9868
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2799942
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#73782}
2021-04-01 19:43:14 +00:00
Ng Zhi An
ba5fafb05b Reland "[wasm-simd] Move test helpers into wasm-simd-utils"
This is a reland of 9a6567b482

The fix is to specialize float/double compare ops to fix msvc build.
On msvc builds, we were selecting the overloaded Equal/NotEqual (etc)
functions that takes float/double as arguments, but we intended to
refer to the function templates.

Original change's description:
> [wasm-simd] Move test helpers into wasm-simd-utils
>
> Move many test helpers into wasm-simd-utils. These helper functions can
> potentially be useful for relaxed-simd test in the future. I left behind
> simd specific test helpers, like load extend helpers, because those are
> for simd instructions.
>
> Bug: v8:11583,v8:11384
> Change-Id: Id9ed452b06eaf5c97a5dda174b53a37aede2a937
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783295
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73675}

Bug: v8:11583
Bug: v8:11384
Change-Id: Id8895900af2688aee8c67eb937acca12c2d65944
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2792668
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73779}
2021-04-01 16:57:24 +00:00
Thibaud Michaud
b3d18785b9 [wasm][liftoff] Fix debug side table indexing
Take locals into account when computing the stack index for the next
control. Also include unwind in the list of blocks that have an implicit
exception reference on the stack.

R=ahaas@chromium.org

Bug: chromium:1183774
Change-Id: I29c67d286f1ec5efa9f2f80e13d083d6eff5836e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2794421
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73722}
2021-03-30 13:01:01 +00:00
Milad Fa
7c31d892bb [wasm-simd]: Move AIX sign patch into the utils header
After https://crrev.com/c/2773784, patch is also needed within
test-run-wasm-relaxed-simd.cc.

Change-Id: Id1efc905c52840eee7b382b90795574b889a7249
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2788408
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#73713}
2021-03-29 20:52:55 +00:00
Manos Koukoutos
3f1ed6991b [wasm-gc][liftoff] Fix array.get value register class
Bug: v8:7748, v8:11602
Change-Id: I007e80de0114cc651c8eb2ec825fc130a4b386c9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2790175
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73704}
2021-03-29 10:22:45 +00:00
Zhi An Ng
157f3e8918 Revert "[wasm-simd] Move test helpers into wasm-simd-utils"
This reverts commit 9a6567b482.

Reason for revert: MSVC compile failures https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win64%20-%20msvc/b8851762212188482624/steps?succeeded=true&debug=true

Original change's description:
> [wasm-simd] Move test helpers into wasm-simd-utils
>
> Move many test helpers into wasm-simd-utils. These helper functions can
> potentially be useful for relaxed-simd test in the future. I left behind
> simd specific test helpers, like load extend helpers, because those are
> for simd instructions.
>
> Bug: v8:11583,v8:11384
> Change-Id: Id9ed452b06eaf5c97a5dda174b53a37aede2a937
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783295
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73675}

Bug: v8:11583
Bug: v8:11384
Change-Id: I88bcefecd62c9b453d0f51ad9b9a912339b110eb
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2787239
Auto-Submit: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#73683}
2021-03-25 19:43:06 +00:00
Ng Zhi An
d048799863 [wasm-simd] Remove scalar lowering tests
We already skip all tests on no-simd-sse builds, in effect not testing
scalar lowering. So, remove explicit tests for scalar lowering for all
other build configurations.

Cq-Include-Trybots: luci.v8.try:v8_linux_optional_rel_ng
Change-Id: I0aedad255236fa029e911bb9dc2dccab419791a4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2728249
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73682}
2021-03-25 19:28:38 +00:00
Ng Zhi An
9a6567b482 [wasm-simd] Move test helpers into wasm-simd-utils
Move many test helpers into wasm-simd-utils. These helper functions can
potentially be useful for relaxed-simd test in the future. I left behind
simd specific test helpers, like load extend helpers, because those are
for simd instructions.

Bug: v8:11583,v8:11384
Change-Id: Id9ed452b06eaf5c97a5dda174b53a37aede2a937
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783295
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73675}
2021-03-25 17:55:23 +00:00
Andreas Haas
7d844bdbb0 [wasm][liftoff] Fix reftype parameter handling
LiftoffCompiler::ProcessParameter assumed that by processing parameters
in the order of their index, register parameters get
processed first, and that for processing stack parameters it can already
use all registers as temp registers. This is not true with reference
type parameters, because registers always first get assigned to value
type parameters even when there is a reference type parameter with a
lower index. Because of this incorrect assumption register parameters
were overwritten by reference type parameters on the stack that got
processed first.

With this CL, only those registers get used as temp registers for
reference type parameters that are not used for parameters.

CC=jkummerow@chromium.org, clemensb@chromium.org
R=thibaudm@chromium.org

Bug: v8:11596
Change-Id: I30ed7f073147df0bd81b9ef4d2b2a54d7badc937
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2784560
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73635}
2021-03-24 14:43:19 +00:00
Thibaud Michaud
f035b2f088 [wasm][interpreter] Fix max stack height for implicit rethrow
Take into account that the implicit rethrow at the end of a try block
might unpack the exception values, and reserve enough stack space for
them.
This is normally done for all throwing opcodes before the switch, but
'end' is not considered a throwing opcode, which is why it needs special
handling.

Also clean up by factorizing the rethrow logic.

R=ahaas@chromium.org

Bug: chromium:1186795
Change-Id: I6fde1b88085db95a9cab32c2c8e0ed1d28b64a32
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783024
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73627}
2021-03-24 11:40:01 +00:00
Ng Zhi An
a9631a773d [wasm-simd] Improve extadd pairwise test
We splat two different values and then shuffle them together so that we
can test pairwise addition of two different values.

Bug: v8:11086
Change-Id: Id3bb34e9bfe21b6c5cb1d7eee3745c6c9e262f24
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2776513
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73590}
2021-03-22 23:35:54 +00:00
Deepti Gandluri
0172322d28 [wasm-simd] Remove post-MVP SIMD flag
Change-Id: I3ed8ff431fcfe93d61dd764a0d9f22fd20962f51
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2780219
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73588}
2021-03-22 23:25:35 +00:00
Ng Zhi An
cca2737791 [wasm-simd] Improve f64x2.convert_low_i32x4 tests
Zero top lanes to ensure that we convert the low lanes of i32x4.

Bug: v8:11265
Change-Id: Id53b65bada406c967c692b584210d4168e2c9183
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2776511
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73587}
2021-03-22 23:00:46 +00:00
Ng Zhi An
656f35ab6c [relaxed-simd] Move tests into separate file
Create a helper wasm-simd-utils to consolidate common helpers shared
between simd and relaxed-simd.

Drive-by cleanup to move RoundingAverageUnsigned out from
overflowing-math (there is nothing overflowing about it).

Bug: v8:11583
Change-Id: I9e24b4c1ee7f0bc00d0a3f85e7553991007a8d5a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2773784
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73582}
2021-03-22 18:41:54 +00:00
Deepti Gandluri
a33c82553d [wasm-simd] Remove PrefetchTemporal and PrefetchNonTemporal operations
Removing prefetch operations as per the vote in the github issue:
https://github.com/WebAssembly/simd/pull/352

Bug:v8:11168

Change-Id: Ia72684e68ce886f8f26a7d3b5bea601be416dfab
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2771758
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73578}
2021-03-22 17:47:49 +00:00
Thibaud Michaud
5c78ac485c [wasm][interpreter] Fix stack underflow behavior
Popping values from an empty stack is allowed in unreachable code, but
the stack height cannot be negative and stays at 0 instead.

R=clemensb@chromium.org

Bug: chromium:1190291
Change-Id: I84df7ab81ba6f5a9056c8341d88a4c47121363ad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2778273
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73566}
2021-03-22 14:03:10 +00:00
Manos Koukoutos
a51056f5c4 [wasm] Rename kWasmStmt -> kWasmVoid
This is a more canonical type name, and is in line with {kVoidCode}.

Change-Id: Iaae9524b6fb6ecaafd63ce81cf30e3d01ca3e525
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2775565
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73557}
2021-03-22 07:58:18 +00:00
Clemens Backes
81008e1752 [wasm][memory64] Fix typing of memory.grow
If memory64 is enabled, memory.grow should consume and return an i64
instead of i32.
This CL implements this for both TurboFan and Liftoff, and adds
validation and execution tests at different layers.

R=manoskouk@chromium.org

Bug: v8:10949
Change-Id: I0b725dbd0d5767bda4609747c1f4aad163c35304
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2773800
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73542}
2021-03-19 13:51:23 +00:00
Benedikt Meurer
c0ee8f905b [wasm][inspector] Don't use Script::source_url to store URL.
The `Script::source_url` field holds the value of the magic
`//# sourceURL` comment if found, and the `Script::name` field is
supposed to hold the actual name of the resource (as provided by
the embedder ideally), in case of Chromium that's supposed to be
the URL (in case of Node.js it's often the local path).

Using `source_url` worked by chance so far, but for loading DWARF
symbol files correctly we need the initiator (which we pick from
the embedderName of the Script as reported to DevTools). More
importantly, the partial handling of `//# sourceURL` in V8 is a
layering violation and causes trouble in DevTools, i.e. when users
put relative paths here. So as part of refactoring and correctifying
the handling of `//# sourceURL`, we need to make sure that the embedder
provided name (the URL in case of Chromium) is always stored in the
`Script::name` field.

Bug: chromium:1183990, chromium:974543, chromium:1174507
Change-Id: I32e11def2b9b52be11bd2e0e64a2ab6bdcf5e52d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2773584
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73536}
2021-03-19 12:19:13 +00:00
Ng Zhi An
7311c6a9c5 [relaxed-simd] Move qfma and approx behind relaxed-simd flag
Move them from post-mvp to relaxed-simd flag.

We will have a follow up change to move all the relaxed-simd tests into
their own file.

Bug: v8:11583
Change-Id: Iea9809a309bac428c856e5d0bd024fe0070d5921
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2773898
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73524}
2021-03-18 20:55:59 +00:00
Thibaud Michaud
d8b6e14c15 [wasm][interpreter] Fix multi-value try blocks
Fix target stack height of multi-value try blocks.

R=clemensb@chromium.org

Bug: chromium:1187896
Change-Id: I698b06141e65f7b545a695c035b862af31dd8875
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2772236
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73504}
2021-03-18 11:12:54 +00:00
Clemens Backes
28050fee0d [wasm][cleanup] Rename WASM_GROW_MEMORY to WASM_MEMORY_GROW
The text representation of that opcode is "memory.grow", so the macro
should also be called WASM_MEMORY_GROW. This is also consistent with
WASM_MEMORY_SIZE.

R=thibaudm@chromium.org

Change-Id: Ibda328e52418d04392856820d3099f2dadaaf98f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2764466
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73477}
2021-03-17 14:37:34 +00:00
Manos Koukoutos
103a42d31a [wasm-gc] Bring V8 up to date with latest spec updates
Changes:
- Remove the restriction that ref.test, ref.cast and br_on_cast may only
  cast to subtypes of the cast object's type. Optimize unrelated type
  casts in the decoder. Add tests.
- Generalize Unreachable() interface function to Trap(TrapReason).
- Fix rtt.sub to be able to accept an rtt without depth. Modify related
  test accordingly.
- Type local.tee according to the local's type as opposed to the value's
  type.

Bug: v8:7748, v8:11541
Change-Id: I4d1846a2cfda891d32a9c1ed26781e4518d4cdf9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2756210
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73461}
2021-03-17 11:07:44 +00:00
Jakob Kummerow
ab22d98c6c [wasm] Ensure stack space in PushReturns
Bonus: this contains small regression tests for the issues fixed in
https://chromium-review.googlesource.com/c/v8/v8/+/2739586.

Fixed: chromium:1186603
Change-Id: I6eca2ef41936555e6fe81555805a659b30023952
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2761201
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73436}
2021-03-16 13:47:25 +00:00
Ng Zhi An
2b66ba5d6b [wasm-simd] Rename vXXXX.all_true to iXXXX.all_true
This is done with a script that does something like:

files=$(ag 'v\d\d?x\d\d?[._]?all_?true' -l)
sed -i 's/V\(8x16\|16x8\|32x4\|64x2\)\([._]\?\)\([aA]ll_\?[tT]rue\)/I\1\2\3/g' $(files)
sed -i 's/v\(8x16\|16x8\|32x4\|64x2\)\([._]\?\)\([aA]ll_\?[tT]rue\)/i\1\2\3/g' $(files)

And manual fixups in test-run-wasm-simd.cc and wasm-opcodes-inl.h.

Bug: v8:10946
Change-Id: Ib5dad388dd6dd9cd0fb575ad961dffc189a2e6ef
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2740488
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73309}
2021-03-10 00:00:30 +00:00
Ng Zhi An
a9577d878e [wasm-interpreter] Fix immediate decoding for numeric instructions
They were using a fixed offset of pc+2, but since the instructions can
be multiple bytes long (leb128 encoded), it should be using *len.

Drive-by fix to add missing instructions to wasm-module-builder.js.

Bug: chromium:1185323,chromium:1185492
Change-Id: I12f396cc2969ecc284aba35b94b1bc5640f12277
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2745977
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73308}
2021-03-09 23:54:30 +00:00
Thibaud Michaud
6e81295599 [wasm][liftoff][eh] Implement rethrow
Push the caught exception on the value stack, so that we can access it
from an inner catch block and rethrow it.

R=clemensb@chromium.org

Bug: v8:11453
Change-Id: Ibc5e653a07c3e4436e252c001b53bc2d3402abc9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2739974
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73295}
2021-03-09 15:23:06 +00:00
Manos Koukoutos
174f0e9515 [wasm] Use object operators in wasm compiler, enable optimizations
This CL enables full csa optimization for wasm code. To take advantage
of csa load elimination, it switches from Load/Store to LoadFromObject/
StoreToObject operators in the wasm compiler (where possible).

Bug: v8:11510
Change-Id: Ibecd8ba81e89a76553b12ad2671ecad520e9e066
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2727407
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73268}
2021-03-08 14:35:25 +00:00
Clemens Backes
7585aaf3e3 [IWYU] Fix includes of wasm-engine.h
Remove the include from js-array-buffer-inl.h, because the wasm engine
is not used in that file. Add missing includes in other files that
relied on the recursive include.

R=jkummerow@chromium.org

Bug: v8:11238
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Change-Id: I8b7f11ce92858cbc0ccf26925159486ed39573fa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2739650
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73254}
2021-03-08 11:33:59 +00:00
Ng Zhi An
10587a273d [wasm-simd] Enable SIMD by default
Bug: v8:11511,v8:6020
Change-Id: I07b87b2a3a2ea08def9be2d0da808c013dd6fc2a
Cq-Include-Trybots: luci.v8.try:v8_linux_blink_rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2728245
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73237}
2021-03-05 17:49:39 +00:00
Jakob Kummerow
d4f31caa09 [wasm-gc][inspector] Debugging support for WasmGC
This adds support for WasmGC objects (structs/arrays) to the
inspector backend. For prettier printing, it also adds support
for reading the "type" and "field" subsections of the "name"
section in Wasm modules.

This patch includes a revert of most of commit
crrev.com/987a7f4ae45ebfc986525075277debdf73001fc2 because
types are more complicated now.

Bug: v8:7748, chromium:1177784
Change-Id: Icec52cbbb32291b0e773b40be6771a678c6ec79b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2715193
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73212}
2021-03-05 10:21:35 +00:00
Ng Zhi An
430407cd2c Reland "[wasm-simd] Remove add horiz instructions"
This is a reland of 77838343d8

No changes in this reland, this wasn't causing the failures, see
https://crbug.com/1163833 for the actual cause.

Original change's description:
> [wasm-simd] Remove add horiz instructions
>
> Bug: v8:6020
> Change-Id: I0605798d03f2e9f9c3c07c49141289889a10a3b0
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2727204
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73180}

Bug: v8:6020
Change-Id: I83d59ed800bd73c81cb879b4ba3a5144045c62d4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2733663
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73200}
2021-03-04 19:27:24 +00:00
Thibaud Michaud
30dd7b462c Reland "[wasm][liftoff][eh] Implement catch_all"
This is a reland of 6e234e9d76
Fix CFI by adding a BTI instruction at the start of the handler.

Original change's description:
> [wasm][liftoff][eh] Implement catch_all
>
> Inline a catch handler after each potentially throwing call. The handler
> just merges values into the actual catch environment and then jumps to
> the catch body.
>
> This automatically adds support for unwind, which also uses the
> "CatchAll" interface method.
>
> Many tests can be written either with "catch" or with "catch_all".
> Duplicate them to get coverage for both.
>
> R=clemensb@chromium.org
>
> Bug: v8:11453
> Change-Id: I789ad44b8d1e496f026157d5c37a12004a8b37e3
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2726497
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73129}

Bug: v8:11453
Change-Id: I84d90877e6227a1966b6347877a9c18e213d9419
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2732023
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73184}
2021-03-04 10:53:16 +00:00