[go] internal/cpu,cmd/internal/obj/arm64: add SB
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Roland Shoemaker (Gerrit)
Feb 24, 2026, 11:50:21 AM (16 hours ago) Feb 24
to goph...@pubsubhelper.golang.org, golang-...@googlegroups.com, David Chase, Go LUCI, Cherry Mui, golang-co...@googlegroups.com
Roland Shoemaker submitted the change![]( "Open in Gerrit")
Change information
Commit message:
internal/cpu,cmd/internal/obj/arm64: add SB
Add the SB (speculation barrier) instruction, and an internal/cpu
feature bit to check its availability.
Change-Id: I7c2d887ae75598f7c11cc875ec15ec3be76c09f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/729501
Reviewed-by: David Chase <drc...@google.com>
LUCI-TryBot-Result: Go LUCI <golang...@luci-project-accounts.iam.gserviceaccount.com>
Files:
- M src/cmd/internal/obj/arm64/a.out.go
- M src/cmd/internal/obj/arm64/anames.go
- M src/cmd/internal/obj/arm64/asm7.go
- M src/internal/cpu/cpu.go
- M src/internal/cpu/cpu_arm64.go
- M src/internal/cpu/cpu_arm64.s
- M src/internal/cpu/cpu_arm64_darwin.go
- M src/internal/cpu/cpu_arm64_freebsd.go
- M src/internal/cpu/cpu_arm64_hwcap.go
- M src/internal/cpu/cpu_arm64_openbsd.go
Change size: S
Delta: 10 files changed, 37 insertions(+), 3 deletions(-)
Branch: refs/heads/master
Submit Requirements:
Code-Review: +2 by David Chase
TryBots-Pass: LUCI-TryBot-Result+1 by Go LUCI
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