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>

diff --git a/src/cmd/asm/internal/asm/testdata/loong64enc1.s b/src/cmd/asm/internal/asm/testdata/loong64enc1.s
index 0f451a9050d387b513d891546c034883ba51e11c..bd06f7227325e5e9b3dd6e4b6d0c62283bcccd69 100644 (file)
--- 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 a34a2a50c3c6daea78bd636aa70aa3cec2159f08..23f71fd8ab28a7ab565b5cbbd930c67baf5d8260 100644 (file)
--- 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 b961a2dcd1aab47e221c71997955857ba879131b..9bfc57e239b7e76b2da1df6f18c46a68cce785c6 100644 (file)
--- 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 45568c9a4f04c40af71ccb7c42b535f2d54a784b..99cebe3e4e1de01b120318d663afd88d37197099 100644 (file)
--- 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: