Kuat <******@****.***> 1714759362 -0700

Pengyuan Bian <******@****.***> 1626308505 -0700

	MUL	x0, x1, acc1
	UMULH	x0, x1, acc2

	MUL	x0, x2, t0
	ADDS	t0, acc2, acc2
	UMULH	x0, x2, acc3

	MUL	x0, x3, t0
	ADCS	t0, acc3, acc3
	UMULH	x0, x3, acc4
	ADC	$0, acc4, acc4
	// x[2:] * x[1]
	MUL	x1, x2, t0
	ADDS	t0, acc3
	UMULH	x1, x2, t1
	ADCS	t1, acc4
	ADC	$0, ZR, acc5

	MUL	x1, x3, t0
	ADDS	t0, acc4
	UMULH	x1, x3, t1
	ADC	t1, acc5
	// x[3] * x[2]

The plugin also integrates with <<test_kit.adoc#test_kit,TestKit>>, a library that aids in writing and executing functional tests for plugin code.

package arm64

import "cmd/internal/obj"

var Anames = []string{
	obj.A_ARCHSPECIFIC: "ADC",
	"ADCS",
	"ADCSW",
	"ADCW",
	"ADD",
	"ADDS",
	"ADDSW",
	"ADDW",
	"ADR",
	"ADRP",
	"AESD",
	"AESE",
	"AESIMC",
	"AESMC",
	"AND",
	"ANDS",
	"ANDSW",
	"ANDW",
	"ASR",
	"ASRW",
	"AT",
	"BCC",
	"BCS",
	"BEQ",
	"BFI",
	"BFIW",
	"BFM",
	"BFMW",
	"BFXIL",
	"BFXILW",

	ADDSW R12.SXTX<<1, R29, R7                 // a7e72c2b
	ADDS R24.UXTX<<4, R25, R21                 // 357338ab
	ADDSW $(3525<<12), R3, R11                 // ADDSW $14438400, R3, R11          // 6b147731
	ADDS $(3525<<12), R3, R11                  // ADDS $14438400, R3, R11           // 6b1477b1
	ADDSW R7->22, R14, R13                     // cd59872b
	ADDS R14>>7, ZR, R4                        // e41f4eab

	// Work with aligned 32-byte chunks
	BIC	$0x1f, R0, R3
	VMOV	R5, V5.S4
	ANDS	$0x1f, R0, R9
	AND	$0x1f, R2, R10
	BEQ	loop

	// Input string is not 32-byte aligned. We calculate the
	// syndrome value for the aligned 32 bytes block containing
	// the first bytes and mask off the irrelevant part.
	VLD1.P	(R3), [V1.B16, V2.B16]
	SUB	$0x20, R9, R4
	ADDS	R4, R2, R2
	VCMEQ	V0.B16, V1.B16, V3.B16
	VCMEQ	V0.B16, V2.B16, V4.B16

	ADDS	$0xff, R6, RSP                                   // ERROR "illegal destination register"
	ADDS	$0xffff0, R6, RSP                                // ERROR "illegal destination register"
	ADDS	$0x1000100010001000, R6, RSP                     // ERROR "illegal destination register"
	ADDS	$0x10001000100011, R6, RSP                       // ERROR "illegal destination register"

    /**
     * Adds a method invocation statement to this block
     */
    void methodInvocation(@Nullable String comment, BuildScriptBuilder.Expression target, String methodName, Object... methodArgs);

    /**
     * Adds a statement to this block.
     */
    void statement(@Nullable String comment, BuildScriptBuilder.Statement statement);

    /**
     * Adds a block statement to this block.
     *

    protected ClassVisitorScope(ClassVisitor cv) {
        super(ASM_LEVEL, cv);
    }

    /**
     * Adds a field to the generated type.
     */
    protected void addField(int access, String fieldName, Class<?> type) {
        addField(access, fieldName, getDescriptor(type));
    }

    /**
     * Adds a field to the generated type.
     */
    protected void addField(int access, String fieldName, Type type) {