diff --git a/src/cmd/internal/obj/arm64/asm7.go b/src/cmd/internal/obj/arm64/asm7.go
index 1a359f1921..70072cfba4 100644
--- a/src/cmd/internal/obj/arm64/asm7.go
+++ b/src/cmd/internal/obj/arm64/asm7.go
@@ -280,7 +280,7 @@ func MOVCONST(d int64, s int, rt int) uint32 {
 const (
 	// Optab.flag
 	LFROM     = 1 << 0 // p.From uses constant pool
-	LFROM3    = 1 << 1 // p.From3 uses constant pool
+	LFROM128  = 1 << 1 // p.From3<<64+p.From forms a 128-bit constant in literal pool
 	LTO       = 1 << 2 // p.To uses constant pool
 	NOTUSETMP = 1 << 3 // p expands to multiple instructions, but does NOT use REGTMP
 )
@@ -419,7 +419,7 @@ var optab = []Optab{
 	{AMOVD, C_LACON, C_NONE, C_NONE, C_RSP, 34, 8, REGSP, LFROM, 0},
 
 	// Move a large constant to a vector register.
-	{AVMOVQ, C_VCON, C_NONE, C_VCON, C_VREG, 101, 4, 0, LFROM | LFROM3, 0},
+	{AVMOVQ, C_VCON, C_NONE, C_VCON, C_VREG, 101, 4, 0, LFROM128, 0},
 	{AVMOVD, C_VCON, C_NONE, C_NONE, C_VREG, 101, 4, 0, LFROM, 0},
 	{AVMOVS, C_LCON, C_NONE, C_NONE, C_VREG, 101, 4, 0, LFROM, 0},
 
@@ -995,8 +995,8 @@ func span7(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
 		if o.flag&LFROM != 0 {
 			c.addpool(p, &p.From)
 		}
-		if o.flag&LFROM3 != 0 {
-			c.addpool(p, p.GetFrom3())
+		if o.flag&LFROM128 != 0 {
+			c.addpool128(p, &p.From, p.GetFrom3())
 		}
 		if o.flag&LTO != 0 {
 			c.addpool(p, &p.To)
@@ -1201,6 +1201,36 @@ func (c *ctxt7) flushpool(p *obj.Prog, skip int) {
 	}
 }
 
+// addpool128 adds a 128-bit constant to literal pool by two consecutive DWORD
+// instructions, the 128-bit constant is formed by ah.Offset<<64+al.Offset.
+func (c *ctxt7) addpool128(p *obj.Prog, al, ah *obj.Addr) {
+	lit := al.Offset
+	q := c.newprog()
+	q.As = ADWORD
+	q.To.Type = obj.TYPE_CONST
+	q.To.Offset = lit
+	q.Pc = int64(c.pool.size)
+
+	lit = ah.Offset
+	t := c.newprog()
+	t.As = ADWORD
+	t.To.Type = obj.TYPE_CONST
+	t.To.Offset = lit
+	t.Pc = int64(c.pool.size + 8)
+	q.Link = t
+
+	if c.blitrl == nil {
+		c.blitrl = q
+		c.pool.start = uint32(p.Pc)
+	} else {
+		c.elitrl.Link = q
+	}
+
+	c.elitrl = t
+	c.pool.size += 16
+	p.Pool = q
+}
+
 /*
  * MOVD foo(SB), R is actually
  *   MOVD addr, REGTMP
diff --git a/src/cmd/internal/obj/arm64/asm_test.go b/src/cmd/internal/obj/arm64/asm_arm64_test.go
similarity index 89%
rename from src/cmd/internal/obj/arm64/asm_test.go
rename to src/cmd/internal/obj/arm64/asm_arm64_test.go
index 9efdb0217f..c6a00f5b94 100644
--- a/src/cmd/internal/obj/arm64/asm_test.go
+++ b/src/cmd/internal/obj/arm64/asm_arm64_test.go
@@ -47,7 +47,7 @@ func TestLarge(t *testing.T) {
 
 	// assemble generated file
 	cmd := exec.Command(testenv.GoToolPath(t), "tool", "asm", "-S", "-o", filepath.Join(dir, "test.o"), tmpfile)
-	cmd.Env = append(os.Environ(), "GOARCH=arm64", "GOOS=linux")
+	cmd.Env = append(os.Environ(), "GOOS=linux")
 	out, err := cmd.CombinedOutput()
 	if err != nil {
 		t.Errorf("Assemble failed: %v, output: %s", err, out)
@@ -62,7 +62,7 @@ func TestLarge(t *testing.T) {
 
 	// build generated file
 	cmd = exec.Command(testenv.GoToolPath(t), "tool", "asm", "-o", filepath.Join(dir, "x.o"), tmpfile)
-	cmd.Env = append(os.Environ(), "GOARCH=arm64", "GOOS=linux")
+	cmd.Env = append(os.Environ(), "GOOS=linux")
 	out, err = cmd.CombinedOutput()
 	if err != nil {
 		t.Errorf("Build failed: %v, output: %s", err, out)
@@ -96,7 +96,7 @@ func TestNoRet(t *testing.T) {
 		t.Fatal(err)
 	}
 	cmd := exec.Command(testenv.GoToolPath(t), "tool", "asm", "-o", filepath.Join(dir, "x.o"), tmpfile)
-	cmd.Env = append(os.Environ(), "GOARCH=arm64", "GOOS=linux")
+	cmd.Env = append(os.Environ(), "GOOS=linux")
 	if out, err := cmd.CombinedOutput(); err != nil {
 		t.Errorf("%v\n%s", err, out)
 	}
@@ -134,7 +134,7 @@ func TestPCALIGN(t *testing.T) {
 			t.Fatal(err)
 		}
 		cmd := exec.Command(testenv.GoToolPath(t), "tool", "asm", "-S", "-o", tmpout, tmpfile)
-		cmd.Env = append(os.Environ(), "GOARCH=arm64", "GOOS=linux")
+		cmd.Env = append(os.Environ(), "GOOS=linux")
 		out, err := cmd.CombinedOutput()
 		if err != nil {
 			t.Errorf("The %s build failed: %v, output: %s", test.name, err, out)
@@ -150,3 +150,13 @@ func TestPCALIGN(t *testing.T) {
 		}
 	}
 }
+
+func testvmovq() (r1, r2 uint64)
+
+// TestVMOVQ checks if the arm64 VMOVQ instruction is working properly.
+func TestVMOVQ(t *testing.T) {
+	a, b := testvmovq()
+	if a != 0x7040201008040201 || b != 0x3040201008040201 {
+		t.Errorf("TestVMOVQ got: a=0x%x, b=0x%x, want: a=0x7040201008040201, b=0x3040201008040201", a, b)
+	}
+}
diff --git a/src/cmd/internal/obj/arm64/asm_arm64_test.s b/src/cmd/internal/obj/arm64/asm_arm64_test.s
new file mode 100644
index 0000000000..9d337a4fd1
--- /dev/null
+++ b/src/cmd/internal/obj/arm64/asm_arm64_test.s
@@ -0,0 +1,14 @@
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "textflag.h"
+
+// testvmovq() (r1, r2 uint64)
+TEXT ·testvmovq(SB), NOSPLIT, $0-16
+	VMOVQ   $0x7040201008040201, $0x3040201008040201, V1
+	VMOV    V1.D[0], R0
+	VMOV    V1.D[1], R1
+	MOVD    R0, r1+0(FP)
+	MOVD    R1, r2+8(FP)
+	RET