[v10.x-staging] v8: fix load elimination liveness checks by bnoordhuis · Pull Request #31613

[v10.x-staging] v8: fix load elimination liveness checks by bnoordhuis · Pull Request #31613 · nodejs/node

This commit back-ports the implementations of IsRename() and MayAlias()
from the upstream 8.0 branch wholesale. Fixes several bugs where V8's
load elimination pass considered values to be alive when they weren't.

Fixes: nodejs#31484

bnoordhuis added the author ready

PRs that have at least one approval, no pending requests for changes, and a CI started.

label

Feb 18, 2020

BethGriggs pushed a commit that referenced this pull request

Feb 26, 2020

This commit back-ports the implementations of IsRename() and MayAlias()
from the upstream 8.0 branch wholesale. Fixes several bugs where V8's
load elimination pass considered values to be alive when they weren't.

Fixes: #31484

PR-URL: #31613
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>