tree bf8d13566f0ad1e2ee2b0bfc6dc4dd157ca2865e
parent cd7eb4f968510147e5d9eec3076fbeab3c16c352
author Ben Clayton <bclayton@google.com> 1626546366 +0000
committer Tint LUCI CQ <tint-scoped@luci-project-accounts.iam.gserviceaccount.com> 1626546366 +0000

transform/Robustness: Re-work the accessor clamping

Rework the clamping so that it unifies the logic for arrays, matricies
and vectors. Try to preserve constant signess, and only clamp the values
if they're possibly out of bounds.

Use ConstantValue() instead of scanning for ScalarConstantExpressions.
As ConstantValue() improves, so will the performance of robustness.

Change-Id: I013a67e15f43350d0a57bcd8ba9ae0c1bcb1eaec
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/58280
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Commit-Queue: David Neto <dneto@google.com>