// Bitwise ops
		{name: "AND", argLength: 2, reg: gp21, asm: "AND", commutative: true}, // arg0 & arg1
		{name: "ANDI", argLength: 1, reg: gp11, asm: "ANDI", aux: "Int64"},    // arg0 & auxint
		{name: "NOT", argLength: 1, reg: gp11, asm: "NOT"},                    // ^arg0

func lshMask64x64(v int64, s uint64) int64 {
	// arm64:"LSL",-"AND"
	// ppc64x:"RLDICL",-"ORN",-"ISEL"
	// riscv64:"SLL",-"AND\t",-"SLTIU"
	// s390x:-"RISBGZ",-"AND",-"LOCGR"
	return v << (s & 63)
}

func rshMask64Ux64(v uint64, s uint64) uint64 {
	// arm64:"LSR",-"AND",-"CSEL"
	// ppc64x:"RLDICL",-"ORN",-"ISEL"
	// riscv64:"SRL\t",-"AND\t",-"SLTIU"
	// s390x:-"RISBGZ",-"AND",-"LOCGR"
	return v >> (s & 63)
}

// If seen == nil, this is startup time and we process the string left to right
// overwriting older settings with newer ones.
// If seen != nil, $GODEBUG has changed and we are doing an
// incremental update. To avoid flapping in the case where a value is
// set multiple times (perhaps in the default and the environment,
// or perhaps twice in the environment), we process the string right-to-left

vector instructions.

Example:

	ANDCC R3, R4, R5		<=>	and. r5, r3, r4 (set CR0)

4. Loads and stores from memory

In Go asm, opcodes starting with 'MOV' indicate a load or store. When the target
is a memory reference, then it is a store; when the target is a register and the
source is a memory reference, then it is a load.

	{name: "Const64", aux: "Int64"}, // value is auxint
	// Note: for both Const32F and Const64F, we disallow encoding NaNs.
	// Signaling NaNs are tricky because if you do anything with them, they become quiet.
	// Particularly, converting a 32 bit sNaN to 64 bit and back converts it to a qNaN.
	// See issue 36399 and 36400.
	// Encodings of +inf, -inf, and -0 are fine.

	noCopy noCopy
	value  uint8
}

// Load accesses and returns the value atomically.
//
//go:nosplit
func (u *Uint8) Load() uint8 {
	return Load8(&u.value)
}

// Store updates the value atomically.
//
//go:nosplit
func (u *Uint8) Store(value uint8) {
	Store8(&u.value, value)
}

// And takes value and performs a bit-wise
// "and" operation with the value of u, storing
// the result into u.

	C_MOVCON   // generated by a 16-bit constant, optionally inverted and/or shifted by multiple of 16
	C_BITCON   // bitfield and logical immediate masks
	C_ADDCON2  // 24-bit constant
	C_LCON     // 32-bit constant
	C_MOVCON2  // a constant that can be loaded with one MOVZ/MOVN and one MOVK
	C_MOVCON3  // a constant that can be loaded with one MOVZ/MOVN and two MOVKs
	C_VCON     // 64-bit constant
	C_FCON     // floating-point constant

			"package main\n",
		tags:        map[string]bool{"yes": true, "no": true},
		shouldBuild: true,
	},
	{
		name: "And",
		content: "// +build no,yes\n\n" +
			"package main\n",
		tags:        map[string]bool{"yes": true, "no": true},
		shouldBuild: false,
	},
	{
		name: "And2",
		content: "//go:build no && yes\n" +
			"package main\n",
		tags:        map[string]bool{"yes": true, "no": true},

	MOVL	$0, AX
	RET

TEXT runtime·sigfwd(SB),NOSPLIT,$0-16
	MOVL	fn+0(FP), AX
	MOVL	sig+4(FP), BX
	MOVL	info+8(FP), CX
	MOVL	ctx+12(FP), DX
	MOVL	SP, SI
	SUBL	$32, SP
	ANDL	$~15, SP	// align stack: handler might be a C function
	MOVL	BX, 0(SP)
	MOVL	CX, 4(SP)
	MOVL	DX, 8(SP)
	MOVL	SI, 12(SP)	// save SI: handler might be a Go function
	CALL	AX
	MOVL	12(SP), AX
	MOVL	AX, SP
	RET

// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR