Commit Graph

4 Commits

Author SHA1 Message Date
Camillo Bruni
a345a442d3 [d8][mjsunit][tools] Improve d8 file API
- Add d8.file.read() and d8.file.execute() helpers
- Change tools and tests to use new d8.file helper
- Unify error throwing in v8::Shell::ReadFile

Change-Id: I5ef4cb27f217508a367106f01e872a4059d5e399
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2928505
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74883}
2021-06-01 13:37:57 +00:00
Manos Koukoutos
2ec2bda84b [wasm][test] Improve initializer expressions in mjsunit
Changes:
- Add WasmInitExpr class which knows how to create initializer
  expressions as pairs of {type, value}. Also define a default for every
  type. Emit such pairs to a byte array with emit_init_expr().
- Add an initializer expression to every global (addGlobal() uses the
  default if the argument is absent).
- Introduce wasmI64Const();
- Update tests as needed.

Change-Id: I75ffe96604891506ad78bd3677ce1efe5e0cee07
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2851892
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74231}
2021-04-27 15:57:50 +00:00
Ng Zhi An
440bb7524b [wasm-simd] Check v128 imported global object
Check that a v128 imported global in a Wasm module is initialized with a
WebAssembly.Global object.

This is technically impossible, because creating WebAssembly.Global of
type v128 is an error, and creating one of any other type is a type
mismatch. However, we still need this check to avoid hitting an
unreachable case when setting the value of the global later on.

Also, this is not a validation error, since the v128 restriction is only
a Web/JS limitation. Other embedders can choose to do something
different with this module with an imported v128 global.

Bug: chromium:1127740
Change-Id: I6d444578c082b6b1c353cfa2fd82bb42eb14fc3b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2410659
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69919}
2020-09-15 16:58:02 +00:00
Ng Zhi An
3cbe36a753 [wasm-simd] Fix init of SIMD global
Using uint8_t[] causes decay to pointer issue, which manifests in
copying garbage values in the call to WriteLittleEndianValue. Change it
to use a std::array, which doesn't have the decaying behavior.

Also add a regression test from comment#6 of the linked bug.

Bug: v8:10731
Change-Id: I4a1ca69fe99806642e9931625ca7aeab6663f955
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2316465
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69052}
2020-07-24 16:44:22 +00:00