From: Xiaolin Zhao <zhaoxiaolin@loongson.cn>
Date: Thu, 21 Aug 2025 02:36:34 +0000 (+0800)
Subject: test/codegen: add Mul* test for loong64
X-Git-Tag: go1.26rc1~1030
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=0aa8019e94;p=gostls13.git

test/codegen: add Mul* test for loong64

Change-Id: Ica285212e4884a96fe9738b53cdc789b223bf2e3
Reviewed-on: https://go-review.googlesource.com/c/go/+/697895
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
---

diff --git a/test/codegen/mathbits.go b/test/codegen/mathbits.go
index c7ba357d09..ba5387d2c3 100644
--- a/test/codegen/mathbits.go
+++ b/test/codegen/mathbits.go
@@ -938,6 +938,7 @@ func Sub64MPanicOnOverflowGT(a, b [2]uint64) [2]uint64 {
 func Mul(x, y uint) (hi, lo uint) {
 	// amd64:"MULQ"
 	// arm64:"UMULH","MUL"
+	// loong64:"MULV","MULHVU"
 	// ppc64x:"MULHDU","MULLD"
 	// s390x:"MLGR"
 	// mips64: "MULVU"
@@ -948,6 +949,7 @@ func Mul(x, y uint) (hi, lo uint) {
 func Mul64(x, y uint64) (hi, lo uint64) {
 	// amd64:"MULQ"
 	// arm64:"UMULH","MUL"
+	// loong64:"MULV","MULHVU"
 	// ppc64x:"MULHDU","MULLD"
 	// s390x:"MLGR"
 	// mips64: "MULVU"
@@ -957,6 +959,7 @@ func Mul64(x, y uint64) (hi, lo uint64) {
 
 func Mul64HiOnly(x, y uint64) uint64 {
 	// arm64:"UMULH",-"MUL"
+	// loong64:"MULHVU",-"MULV"
 	// riscv64:"MULHU",-"MUL\t"
 	hi, _ := bits.Mul64(x, y)
 	return hi
@@ -964,6 +967,7 @@ func Mul64HiOnly(x, y uint64) uint64 {
 
 func Mul64LoOnly(x, y uint64) uint64 {
 	// arm64:"MUL",-"UMULH"
+	// loong64:"MULV",-"MULHVU"
 	// riscv64:"MUL\t",-"MULHU"
 	_, lo := bits.Mul64(x, y)
 	return lo
@@ -972,6 +976,7 @@ func Mul64LoOnly(x, y uint64) uint64 {
 func Mul64Const() (uint64, uint64) {
 	// 7133701809754865664 == 99<<56
 	// arm64:"MOVD\t[$]7133701809754865664, R1", "MOVD\t[$]88, R0"
+	// loong64:"MOVV\t[$]88, R4","MOVV\t[$]7133701809754865664, R5",-"MUL"
 	return bits.Mul64(99+88<<8, 1<<56)
 }