tree 549a0e098541d33b10ac1d07f8267b79815c5045
parent 08768435d978ae61192baf56af1fa7a6b24f3449
author Martin Kustermann <kustermann@google.com> 1718877319 +0000
committer Commit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com> 1718877319 +0000

[dart2wasm] Use WasmI32 (instead of double) as representation of integers across interop boundary

Currently code uses `double` to represent array indices, array lengths
etc. This seems wrong because `double`s can loose precision. This is
also a high overhead.

Understandably one could use `double` and only start to loose precision
with more than 32 bits, but realistically string lenghts, array lengths
cannot exceed 31-bits (i.e. 2 GBs) in practice.

=> Use Wasmi32 to represent array indices, array lengths, bytes loaded
from integer arrays, ...

Change-Id: Ife540622c85118d890a8e487677db56e2ce06f5a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/372424
Reviewed-by: Ömer Ağacan <omersa@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>