From fe69121bc538260cf91f11dab705335b690e51a3 Mon Sep 17 00:00:00 2001
From: Paschalis Tsilias <paschalis.tsilias@gmail.com>
Date: Wed, 13 Sep 2023 12:44:17 +0300
Subject: cmd/compile: optimize []byte(string1 + string2)

This CL optimizes the compilation of string-to-bytes conversion in the
case of string additions.

Fixes #62407

Change-Id: Ic47df758478e5d061880620025c4ec7dbbff8a64
Reviewed-on: https://go-review.googlesource.com/c/go/+/527935
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Tim King <taking@google.com>
---
 test/codegen/strings.go | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'test/codegen')

diff --git a/test/codegen/strings.go b/test/codegen/strings.go
index f98c062d1b..64dcf4c842 100644
--- a/test/codegen/strings.go
+++ b/test/codegen/strings.go
@@ -26,6 +26,11 @@ func ToByteSlice() []byte { // Issue #24698
 	return []byte("foo")
 }
 
+func ConvertToByteSlice(a, b, c string) []byte {
+	// amd64:`.*runtime.concatbyte3`
+	return []byte(a + b + c)
+}
+
 // Loading from read-only symbols should get transformed into constants.
 func ConstantLoad() {
 	// 12592 = 0x3130
-- 
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