NMULSF	F0, F1             // ERROR "illegal combination"
	FMULAD	F0, F1             // ERROR "illegal combination"
	FMULAF	F0, F1             // ERROR "illegal combination"
	FMULSD	F0, F1             // ERROR "illegal combination"
	FMULSF	F0, F1             // ERROR "illegal combination"
	FNMULAD	F0, F1             // ERROR "illegal combination"
	FNMULAF	F0, F1             // ERROR "illegal combination"

	LDADDALD	R5, (R6), RSP                            // ERROR "illegal combination"
	LDADDALW	R5, (R6), RSP                            // ERROR "illegal combination"
	LDADDALH	R5, (R6), RSP                            // ERROR "illegal combination"
	LDADDALB	R5, (R6), RSP                            // ERROR "illegal combination"
	LDADDD	R5, (R6), RSP                                    // ERROR "illegal combination"

//	{
//		outcode(int($1), &$2, 0, &$4);
//	}
	AND	$11, R17, R7	// 3227000b
	XOR	$341, R1, R23	// 38370155
	OR	$254, R25, R13	// 372d00fe
//
// move immediate: macro for lui+or, addi, addis, and other combinations
//
//	LMOVW imm ',' rreg
//	{
//		outcode(int($1), &$2, 0, &$4);
//	}
	MOVW	$1, R1
	MOVV	$1, R1

//	LMOVW ximm ',' rreg
//	{
//		outcode(int($1), &$2, 0, &$4);
//	}
	MOVW	$1, R1

circumstances: if net is the only cgo-using package, then internal
linking is probably fine, but if other packages are involved, so that there
are dependencies on libraries beyond libc, external linking is likely
to work better. The compilation of a package records the relevant
information to support both linking modes, leaving the decision
to be made when linking the final binary.

Linking Directives

			a.Index = num
		default:
			return errors.New("unsupported simd register extension type: " + ext)
		}
	} else {
		return errors.New("invalid register and extension combination")
	}
	return nil
}

// ARM64RegisterArrangement constructs an ARM64 vector register arrangement.
func ARM64RegisterArrangement(reg int16, name, arng string) (int64, error) {
	var curQ, curSize uint16

// Copyright 2022 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.

// This contains the valid opcode combinations available
// in cmd/internal/obj/ppc64/asm9.go which exist for
// POWER10/ISA 3.1.

#include "../../../../../runtime/textflag.h"

TEXT asmtest(SB), DUPOK|NOSPLIT, $0
	BRD R1, R2                              // 7c220176

</p>

<p>
Examples of incorrect synchronization are given in the
“Incorrect synchronization” section below.
</p>

<p>
Examples of the limitations on implementations are given in the
“Incorrect compilation” section below.
</p>

<h2 id="synchronization">Synchronization</h2>

<h3 id="init">Initialization</h3>

<p>
Program initialization runs in a single goroutine,