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8 Commits

Author SHA1 Message Date
Ben Smith
8a7f562e14 [wasm] Implement bulk memory table.copy in interpreter 
Most of the mjsunit/wasm/table-copy.js tests have been ported to
cctests, so they can be tested with all execution tiers.

Bug: v8:8965
Change-Id: I448719be30a4b2bddb9e2cffb4c74d3134db2f50
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1529548
Commit-Queue: Ben Smith <binji@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60396}
 2019-03-21 16:26:20 +00:00
Andreas Haas
6b650574fc [wasm] Allow multi-table initialization in the wasm-module-builder 
This CL just adds a parameter to addElementSegment and adjusts all
existing tests.

Note that addElementSegment contains some convenience code to construct
one initial table if it does not exist yet. I did not extend that code
to multiple tables. If you want to use multiple tables, you have to
create them first before calling addElementSegment.

R=clemensh@chromium.org

Bug: v8:7581
Change-Id: Ie131fd5dc19856703ab5cfb2fa8f7d576f70a18b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1520709
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60211}
 2019-03-13 10:39:41 +00:00
Ben Smith
5f4f57eb07 [wasm] Fix out-of-bound behavior for bulk ops 
The bulk memory operations should not bounds check ahead of time, but
instead should write as many bytes as possible until the first
out-of-bounds access.

Bug: v8:8890
Change-Id: Ia8179fe268fc65816c34a8f3461ed0a0d35600aa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1497520
Commit-Queue: Ben Smith <binji@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60040}
 2019-03-05 20:36:18 +00:00
Ben Smith
787d83c57c [wasm] Update bulk-memory instruction immediates 
* There are now two indexes for table.copy and memory.copy, one for the
source and the one for the destination table/memory. (see
https://github.com/WebAssembly/bulk-memory-operations/pull/43)

* Reverse the order of the table.init and memory.init indexes, so the
segment index is first and the table/memory index is second. (see
https://github.com/WebAssembly/bulk-memory-operations/pull/45)

Change-Id: I1781edd4200a7b693e3d0814999e6292aafa58d3
Reviewed-on: https://chromium-review.googlesource.com/c/1446149
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Ben Smith <binji@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59259}
 2019-01-31 18:24:17 +00:00
Sven Sauleau
5bdb13297f [wasm] merge js constants file in module-builder 
We noticed that almost every call site were loading both files,
the split isn't necessary anymore.

In some message tests, removed the absolute line number to allow future
changes.

Bug: v8:8726
Change-Id: I8527f0a1ecfa685aa01a5e2f5f47ddf1cb13a545
Reviewed-on: https://chromium-review.googlesource.com/c/1446452
Commit-Queue: Sven Sauleau <ssauleau@igalia.com>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59220}
 2019-01-30 22:10:34 +00:00
Ben L. Titzer
3a638a57cf [wasm] 0-count is out-of-bounds for table.* 
The spec wasn't clear (or I misunderstood). As per
(https://github.com/WebAssembly/bulk-memory-operations/issues/11),
zero-count table operations are also out of bounds.

R=mstarzinger@chromium.org
CC=binji@chromium.org
BUG=v8:7747

Change-Id: Iac689b93a040eb6eb06975bc2ba0facb85d24756
Reviewed-on: https://chromium-review.googlesource.com/c/1436022
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59121}
 2019-01-28 13:13:34 +00:00
Ben L. Titzer
cb4e772921 [wasm] table.copy: handle overlap and zero count cases 
This CL fixes the zero-count and overlapping cases for the table.copy
bytecode.

R=mstarzinger@chromium.org
CC=binji@chromium.org
BUG=v8:7747

Change-Id: I6211e4c899621069ebf8bc088b3ab4e80c7bbd0a
Reviewed-on: https://chromium-review.googlesource.com/c/1417172
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58887}
 2019-01-17 13:55:20 +00:00
Ben L. Titzer
8a40e88db3 [wasm] Implement table.copy bytecode 
The table.copy bytecode copies a range of table entries in a similar
way to memcopy. This CL implements the behavior in a runtime call
that calls into the wasm engine.

R=mstarzinger@chromium.org,binji@chromium.org
BUG=v8:7747

Change-Id: I420451202b1b78ea92cbd10387a644ed57e111c8
Reviewed-on: https://chromium-review.googlesource.com/c/1414919
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58858}
 2019-01-16 16:55:31 +00:00