[go] runtime: VZEROUPPER at the end of FilterNilAVX512

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Cherry Mui (Gerrit)

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Dec 10, 2025, 1:57:51 PM (2 days ago) Dec 10

to goph...@pubsubhelper.golang.org, golang-...@googlegroups.com, Michael Knyszek, David Chase, Go LUCI, golang-co...@googlegroups.com

Cherry Mui submitted the change

Change information

Commit message:

runtime: VZEROUPPER at the end of FilterNilAVX512

VZEROUPPER at the end of FilterNilAVX512 as we're leaving AVX
context. Also explicitly zero Z15, as the high bits are not
guaranteed zero as of CL 728240.

Change-Id: I000a199206d0b8fd4905c8a699e934551bbd3c60

Reviewed-on: https://go-review.googlesource.com/c/go/+/728740

Reviewed-by: Michael Knyszek <mkny...@google.com>

LUCI-TryBot-Result: Go LUCI <golang...@luci-project-accounts.iam.gserviceaccount.com>

Files:

M src/internal/runtime/gc/scan/filter_amd64.s

Change size: XS

Delta: 1 file changed, 2 insertions(+), 0 deletions(-)

Branch: refs/heads/master

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Code-Review: +2 by Michael Knyszek
TryBots-Pass: LUCI-TryBot-Result+1 by Go LUCI

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