From 3a29ebeef985efb12d2b8670f50b146e9a2815ca Mon Sep 17 00:00:00 2001
From: Joel Sing <joel@sing.id.au>
Date: Sat, 21 Feb 2026 03:29:09 +1100
Subject: cmd/compile: additional optimisation for CZEROEQZ/CZERONEZ on riscv64

Negation on a condition can be eliminated.

Change-Id: I94fab5f019cbaebb2ca589e1d8796a9cb72f3894
Reviewed-on: https://go-review.googlesource.com/c/go/+/748401
Reviewed-by: Xueqi Luo <1824368278@qq.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Julian Zhu <jz531210@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Keith Randall <khr@golang.org>
---
 test/codegen/condmove.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'test/codegen')

diff --git a/test/codegen/condmove.go b/test/codegen/condmove.go
index bd2d1540b4..93159d1ca4 100644
--- a/test/codegen/condmove.go
+++ b/test/codegen/condmove.go
@@ -534,6 +534,6 @@ func constantTimeSelect(v, x, y int) int {
 	// amd64:"CMOVQ"
 	// arm64:"CSEL"
 	// riscv64/rva20u64,riscv64/rva22u64:"SNEZ" "NEG" "AND" "OR"
-	// riscv64/rva23u64:"NEG" "CZERONEZ" "CZEROEQZ" "OR" -"SNEZ" -"AND"
+	// riscv64/rva23u64:"CZERONEZ" "CZEROEQZ" "OR" -"SNEZ" -"NEG" -"AND"
 	return subtle.ConstantTimeSelect(v, x, y)
 }
-- 
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