tree e603fa09387140f9de64342de12452cb6072d7bd
parent cfbb70aa1cc24567bbb5fdfaed34e708a7603e41
author Martin Kustermann <kustermann@google.com> 1539943421 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1539943421 +0000

[VM] Rehash constant tables after cid-renumbering during app-jit training

When sorting classes during app-jit training we permute the class ids.

This makes canonical hash codes which depend directly (or indirectly) on
class ids change.  We already clear out the cached canonical hash codes
in type-related instances in the heap.

Though the cid renumbering makes the non-cached canonical hashcodes of
other objects, such as canonical Instance and Array objects, also change.

This means any data structures which use canonical hash codes of
type related objects or Instance/Array objects need to re-hash.

-> This CL makes us rehash the constant tables after cid renumbering.

Fixes https://github.com/dart-lang/sdk/issues/34849

Change-Id: Icfb5add3f14e2c62c5bca94f296133121ad0bc55
Reviewed-on: https://dart-review.googlesource.com/c/80801
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>