tree 458b8aa71b37115f5eea42a460c0d762c2d29895
parent 7751fe38f4744c7126a137d4d7955c29c19f4662
author Antonio Maiorano <amaiorano@google.com> 1603482819 -0400
committer Antonio Maiorano <amaiorano@google.com> 1604333168 +0000

Subzero: fix Ice::BitVector::grow not copying old to new data

UBSAN pointed out that memcpy cannot have nullptr dest or source,
which I've also fixed; however, this also made me realize a latent bug:
the dest and source args needed to be swapped. It seems this bug hasn't
bit us yet because the normal use-case is to resize the bitvector, and
then call 'set' to set all bits to 0 or 1. In any case, still worth
fixing.

Bug: b/171581990
Change-Id: Iaaa7e019b53ae661f49c97195f2d144b5715f164
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/49528
Presubmit-Ready: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Tested-by: Antonio Maiorano <amaiorano@google.com>