cmd/internal/obj/loong64, cmd/asm: remove useless instructions

Change-Id: I180c40898672a757d72cd0ef38e6e8cc20dc4c3d
Reviewed-on: https://go-review.googlesource.com/c/go/+/565618
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Reviewed-by: Cherry Mui <cherryyz@google.com>

4 files changed, 0 insertions, 56 deletions

diff --git a/src/cmd/asm/internal/asm/testdata/loong64enc1.s b/src/cmd/asm/internal/asm/testdata/loong64enc1.s
index 0f451a9050..bd06f72273 100644
--- a/src/cmd/asm/internal/asm/testdata/loong64enc1.s
+++ b/src/cmd/asm/internal/asm/testdata/loong64enc1.s
@@ -63,15 +63,11 @@ lable2:
 	MOVV	R4, result+16(FP)	// 6460c029
 	MOVB	R4, result+16(FP)	// 64600029
 	MOVBU	R4, result+16(FP)	// 64600029
-	MOVWL	R4, result+16(FP)	// 6460002f
-	MOVVL	R4, result+16(FP)	// 6460802f
 	MOVW	R4, 1(R5)		// a4048029
 	MOVWU	R4, 1(R5)		// a4048029
 	MOVV	R4, 1(R5)		// a404c029
 	MOVB	R4, 1(R5)		// a4040029
 	MOVBU	R4, 1(R5)		// a4040029
-	MOVWL	R4, 1(R5)		// a404002f
-	MOVVL	R4, 1(R5)		// a404802f
 	SC	R4, 1(R5)		// a4040021
 	SCV	R4, 1(R5)		// a4040023
 	MOVW	y+8(FP), R4		// 64408028
@@ -79,15 +75,11 @@ lable2:
 	MOVV	y+8(FP), R4		// 6440c028
 	MOVB	y+8(FP), R4		// 64400028
 	MOVBU	y+8(FP), R4		// 6440002a
-	MOVWL	y+8(FP), R4		// 6440002e
-	MOVVL	y+8(FP), R4		// 6440802e
 	MOVW	1(R5), R4		// a4048028
 	MOVWU	1(R5), R4		// a404802a
 	MOVV	1(R5), R4		// a404c028
 	MOVB	1(R5), R4		// a4040028
 	MOVBU	1(R5), R4		// a404002a
-	MOVWL	1(R5), R4		// a404002e
-	MOVVL	1(R5), R4		// a404802e
 	LL	1(R5), R4		// a4040020
 	LLV	1(R5), R4		// a4040022
 	MOVW	$4(R4), R5		// 8510c002
@@ -210,11 +202,6 @@ lable2:
 	DBAR	 			// 00007238
 	NOOP	 			// 00004003
 
-	MOVWR	R4, result+16(FP) 	// 6460402f
-	MOVWR	R4, 1(R5) 		// a404402f
-	MOVWR	y+8(FP), R4 		// 6440402e
-	MOVWR	1(R5), R4 		// a404402e
-
 	CMPEQF	F4, F5, FCC0		// a010120c
 	CMPGTF	F4, F5, FCC1 		// a190110c
 	CMPGTD	F4, F5, FCC2 		// a290210c
diff --git a/src/cmd/internal/obj/loong64/a.out.go b/src/cmd/internal/obj/loong64/a.out.go
index a34a2a50c3..23f71fd8ab 100644
--- a/src/cmd/internal/obj/loong64/a.out.go
+++ b/src/cmd/internal/obj/loong64/a.out.go
@@ -302,9 +302,6 @@ const (
 	AMOVWD
 	AMOVWF
 
-	AMOVWL
-	AMOVWR
-
 	AMUL
 	AMULD
 	AMULF
@@ -359,8 +356,6 @@ const (
 
 	// 64-bit
 	AMOVV
-	AMOVVL
-	AMOVVR
 
 	ASLLV
 	ASRAV
diff --git a/src/cmd/internal/obj/loong64/anames.go b/src/cmd/internal/obj/loong64/anames.go
index b961a2dcd1..9bfc57e239 100644
--- a/src/cmd/internal/obj/loong64/anames.go
+++ b/src/cmd/internal/obj/loong64/anames.go
@@ -61,8 +61,6 @@ var Anames = []string{
 	"MOVW",
 	"MOVWD",
 	"MOVWF",
-	"MOVWL",
-	"MOVWR",
 	"MUL",
 	"MULD",
 	"MULF",
@@ -104,8 +102,6 @@ var Anames = []string{
 	"MASKEQZ",
 	"MASKNEZ",
 	"MOVV",
-	"MOVVL",
-	"MOVVR",
 	"SLLV",
 	"SRAV",
 	"SRLV",
diff --git a/src/cmd/internal/obj/loong64/asm.go b/src/cmd/internal/obj/loong64/asm.go
index 45568c9a4f..99cebe3e4e 100644
--- a/src/cmd/internal/obj/loong64/asm.go
+++ b/src/cmd/internal/obj/loong64/asm.go
@@ -95,22 +95,16 @@ var optab = []Optab{
 	{AMOVV, C_REG, C_NONE, C_NONE, C_SEXT, C_NONE, 7, 4, 0, 0},
 	{AMOVB, C_REG, C_NONE, C_NONE, C_SEXT, C_NONE, 7, 4, 0, 0},
 	{AMOVBU, C_REG, C_NONE, C_NONE, C_SEXT, C_NONE, 7, 4, 0, 0},
-	{AMOVWL, C_REG, C_NONE, C_NONE, C_SEXT, C_NONE, 7, 4, 0, 0},
-	{AMOVVL, C_REG, C_NONE, C_NONE, C_SEXT, C_NONE, 7, 4, 0, 0},
 	{AMOVW, C_REG, C_NONE, C_NONE, C_SAUTO, C_NONE, 7, 4, REGSP, 0},
 	{AMOVWU, C_REG, C_NONE, C_NONE, C_SAUTO, C_NONE, 7, 4, REGSP, 0},
 	{AMOVV, C_REG, C_NONE, C_NONE, C_SAUTO, C_NONE, 7, 4, REGSP, 0},
 	{AMOVB, C_REG, C_NONE, C_NONE, C_SAUTO, C_NONE, 7, 4, REGSP, 0},
 	{AMOVBU, C_REG, C_NONE, C_NONE, C_SAUTO, C_NONE, 7, 4, REGSP, 0},
-	{AMOVWL, C_REG, C_NONE, C_NONE, C_SAUTO, C_NONE, 7, 4, REGSP, 0},
-	{AMOVVL, C_REG, C_NONE, C_NONE, C_SAUTO, C_NONE, 7, 4, REGSP, 0},
 	{AMOVW, C_REG, C_NONE, C_NONE, C_SOREG, C_NONE, 7, 4, REGZERO, 0},
 	{AMOVWU, C_REG, C_NONE, C_NONE, C_SOREG, C_NONE, 7, 4, REGZERO, 0},
 	{AMOVV, C_REG, C_NONE, C_NONE, C_SOREG, C_NONE, 7, 4, REGZERO, 0},
 	{AMOVB, C_REG, C_NONE, C_NONE, C_SOREG, C_NONE, 7, 4, REGZERO, 0},
 	{AMOVBU, C_REG, C_NONE, C_NONE, C_SOREG, C_NONE, 7, 4, REGZERO, 0},
-	{AMOVWL, C_REG, C_NONE, C_NONE, C_SOREG, C_NONE, 7, 4, REGZERO, 0},
-	{AMOVVL, C_REG, C_NONE, C_NONE, C_SOREG, C_NONE, 7, 4, REGZERO, 0},
 	{ASC, C_REG, C_NONE, C_NONE, C_SOREG, C_NONE, 7, 4, REGZERO, 0},
 	{ASCV, C_REG, C_NONE, C_NONE, C_SOREG, C_NONE, 7, 4, REGZERO, 0},
 
@@ -119,22 +113,16 @@ var optab = []Optab{
 	{AMOVV, C_SEXT, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, 0, 0},
 	{AMOVB, C_SEXT, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, 0, 0},
 	{AMOVBU, C_SEXT, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, 0, 0},
-	{AMOVWL, C_SEXT, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, 0, 0},
-	{AMOVVL, C_SEXT, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, 0, 0},
 	{AMOVW, C_SAUTO, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGSP, 0},
 	{AMOVWU, C_SAUTO, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGSP, 0},
 	{AMOVV, C_SAUTO, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGSP, 0},
 	{AMOVB, C_SAUTO, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGSP, 0},
 	{AMOVBU, C_SAUTO, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGSP, 0},
-	{AMOVWL, C_SAUTO, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGSP, 0},
-	{AMOVVL, C_SAUTO, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGSP, 0},
 	{AMOVW, C_SOREG, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGZERO, 0},
 	{AMOVWU, C_SOREG, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGZERO, 0},
 	{AMOVV, C_SOREG, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGZERO, 0},
 	{AMOVB, C_SOREG, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGZERO, 0},
 	{AMOVBU, C_SOREG, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGZERO, 0},
-	{AMOVWL, C_SOREG, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGZERO, 0},
-	{AMOVVL, C_SOREG, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGZERO, 0},
 	{ALL, C_SOREG, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGZERO, 0},
 	{ALLV, C_SOREG, C_NONE, C_NONE, C_REG, C_NONE, 8, 4, REGZERO, 0},
 
@@ -1189,12 +1177,6 @@ func buildop(ctxt *obj.Link) {
 		case ABFPT:
 			opset(ABFPF, r0)
 
-		case AMOVWL:
-			opset(AMOVWR, r0)
-
-		case AMOVVL:
-			opset(AMOVVR, r0)
-
 		case AMOVW,
 			AMOVD,
 			AMOVF,
@@ -2173,22 +2155,6 @@ func (c *ctxt0) opirr(a obj.As) uint32 {
 		return 0x0ad << 22
 	case AMOVD:
 		return 0x0af << 22
-	case AMOVWL:
-		return 0x0bc << 22
-	case AMOVWR:
-		return 0x0bd << 22
-	case AMOVVL:
-		return 0x0be << 22
-	case AMOVVR:
-		return 0x0bf << 22
-	case -AMOVWL:
-		return 0x0b8 << 22
-	case -AMOVWR:
-		return 0x0b9 << 22
-	case -AMOVVL:
-		return 0x0ba << 22
-	case -AMOVVR:
-		return 0x0bb << 22
 	case -AMOVB:
 		return 0x0a0 << 22
 	case -AMOVBU: