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Keith Randall ee5ce77c62 cmd/asm: reject avx512 .Z instructions without a mask register
Zeroing requires a non-K0 mask register be specified.
(gcc enforces this when assembling.)

The non-K0 restriction is already handled by the Yknot0 restriction.
But if the mask register is missing altogether, we misassemble the
instruction.

Fixes #57952

Not sure if this is really worth mentioning in the release notes,
but just in case I'll mark it.
RELNOTE=yes

Change-Id: I8f05d3155503f1f16d1b5ab9d67686fe5b64dfea
Reviewed-on: https://go-review.googlesource.com/c/go/+/463229
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Илья Токарь <tocarip@gmail.com>
Reviewed-by: Iskander Sharipov <quasilyte@gmail.com>
2023-01-30 14:56:56 +00:00
.github .github: suggest using private browsing in pkgsite template 2023-01-03 18:52:47 +00:00
api encoding/binary: add var NativeEndian 2023-01-27 18:17:20 +00:00
doc runtime: replace panic(nil) with panic(new(runtime.PanicNilError)) 2023-01-19 22:21:50 +00:00
lib/time time/tzdata: generate zip constant during cmd/dist 2023-01-17 22:30:53 +00:00
misc misc: update go.mod to 1.21 2023-01-26 16:55:59 +00:00
src cmd/asm: reject avx512 .Z instructions without a mask register 2023-01-30 14:56:56 +00:00
test cmd/compile: fix -m=2 output for recursive function with closures 2023-01-28 04:29:02 +00:00
.gitattributes
.gitignore time/tzdata: generate zip constant during cmd/dist 2023-01-17 22:30:53 +00:00
codereview.cfg
CONTRIBUTING.md
go.env cmd/go: introduce GOROOT/go.env and move proxy/sumdb config there 2023-01-17 23:10:39 +00:00
LICENSE
PATENTS
README.md README: update from CC-BY-3.0 to CC-BY-4.0 2022-11-02 20:14:56 +00:00
SECURITY.md

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