[go] cmd/compile: replace conditions to CCMP instructions on ARM64
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Gopher Robot (Gerrit)
Feb 12, 2026, 12:27:30 PM (18 hours ago) Feb 12
to Oleg Aleksandrov, goph...@pubsubhelper.golang.org, golang-...@googlegroups.com, Junyang Shao, Go LUCI, Keith Randall, Keith Randall, Martin Möhrmann, golang-co...@googlegroups.com
Gopher Robot submitted the change![]( "Open in Gerrit")
Change information
Commit message:
cmd/compile: replace conditions to CCMP instructions on ARM64
This change introduces a new SSA pass that converts conditionals
with logical AND into CMP/CCMP instruction sequences on ARM64.
Fixes #71268
Change-Id: I3eba9c05b88ed6eb70350d30f6e805e6a4dddbf1
Reviewed-on: https://go-review.googlesource.com/c/go/+/698099
Reviewed-by: Keith Randall <k...@golang.org>
Auto-Submit: Keith Randall <k...@golang.org>
LUCI-TryBot-Result: Go LUCI <golang...@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <k...@google.com>
Reviewed-by: Junyang Shao <shaoj...@google.com>
Files:
- M src/cmd/compile/internal/ssa/compile.go
- A src/cmd/compile/internal/ssa/merge_conditional_branches.go
- A src/cmd/compile/internal/ssa/merge_conditional_branches_test.go
- M src/cmd/compile/internal/ssa/rewrite.go
- A src/cmd/compile/internal/test/conditionalCmpConst_test.go
- A src/cmd/compile/internal/test/testdata/gen/conditionalCmpConstGen.go
- M test/codegen/comparisons.go
Change size: XL
Delta: 7 files changed, 5852 insertions(+), 8 deletions(-)
Branch: refs/heads/master
Submit Requirements:
Code-Review: +1 by Keith Randall, +2 by Keith Randall, +1 by Junyang Shao
TryBots-Pass: LUCI-TryBot-Result+1 by Go LUCI
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