ORQ   R11, DI

	MOVQ  CX, R15
	RORXQ $34, R9, R12
	XORQ  R14, R13
	XORQ  R8, R15

	RORXQ $14, BX, R14
	ANDQ  BX, R15
	ADDQ  DX, AX
	ANDQ  R10, DI

	XORQ R14, R13
	XORQ R8, R15

	RORXQ $39, R9, R14
	ADDQ  R13, R15

	XORQ R12, R14
	ADDQ R15, AX

	RORXQ $28, R9, R12

	XORQ R12, R14
	MOVQ R9, R12
	ANDQ R11, R12
	ORQ  R12, DI

	ADDQ R14, DX

	ROLQ $21, rBo;         \
	MOVQ rBo, rT1;         \
	ANDQ rBu, rT1;         \
	XORQ rBi, rT1;         \
	MOVQ rT1, _bi(oState); \
	                       \
	NOTQ rBi;              \
	ORQ  rBa, rBu;         \
	ORQ  rBo, rBi;         \
	XORQ rBo, rBu;         \
	XORQ rBe, rBi;         \
	MOVQ rBu, _bo(oState); \
	MOVQ rBi, _be(oState); \
	B_RBI_RCE;             \
	                       \

	RET
TEXT ·a9(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	ORQ R15, R15 // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here"
	RET
TEXT ·a10(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	JEQ one
	ORQ R15, R15 // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here"
one:
	RET

	ANDQ    AX, CX // q = |q|
	MOVQ    $PosInf, AX
	CMPQ    AX, BX
	JLE     isInfOrNaN
	CMPQ    AX, CX
	JLE     isInfOrNaN
	// hypot = max * sqrt(1 + (min/max)**2)
	MOVQ    BX, X0
	MOVQ    CX, X1
	ORQ     CX, BX
	JEQ     isZero
	MOVAPD  X0, X2
	MAXSD   X1, X0
	MINSD   X2, X1
	DIVSD   X0, X1
	MULSD   X1, X1
	ADDSD   $1.0, X1
	SQRTSD  X1, X1
	MULSD   X1, X0
	MOVSD   X0, ret+16(FP)
	RET
isInfOrNaN:

	MOVQ    $PosInf, AX
	MOVQ    R8, BX
	ANDQ    DX, BX // x = |x|
	CMPQ    AX, BX
	JLT     isMaxNaN
	MOVQ    R9, CX
	ANDQ    DX, CX // y = |y|
	CMPQ    AX, CX
	JLT     isMaxNaN
	// ±0 special cases
	ORQ     CX, BX
	JEQ     isMaxZero

	MOVQ    R8, X0
	MOVQ    R9, X1
	MAXSD   X1, X0
	MOVSD   X0, ret+16(FP)
	RET
isMaxNaN: // return NaN
	MOVQ	$NaN, AX
isPosInf: // return +Inf
	MOVQ    AX, ret+16(FP)

matched. For example, the following test:

  func TZ8(n uint8) int {
  	   // amd64:"BSFQ","ORQ\t\\$256"
  	   return bits.TrailingZeros8(n)
  }

verifies that the code generated for a bits.TrailingZeros8 call on
amd64 contains both a "BSFQ" instruction and an "ORQ $256".

Note how the ORQ regex includes a tab char (\t). In the Go assembly
syntax, operands are separated from opcodes by a tabulation.

	x[i+3] &= v
	// amd64: `ORQ\t[A-Z]+[0-9]*, 32\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\)`
	x[i+4] |= v
	// amd64: `XORQ\t[A-Z]+[0-9]*, 40\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\)`
	x[i+5] ^= v

	// amd64: `ADDQ\t[$]77, 48\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\)`
	x[i+6] += 77
	// amd64: `ANDQ\t[$]77, 56\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\)`
	x[i+7] &= 77
	// amd64: `ORQ\t[$]77, 64\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\)`

	// s390x:"LPDFR",-"LDEBR",-"LEDBR"     (no float64 conversion)
	return float32(math.Abs(float64(x)))
}

// Check that it's using integer registers
func copysign(a, b, c float64) {
	// amd64:"BTRQ\t[$]63","ANDQ","ORQ"
	// s390x:"CPSDR",-"MOVD"         (no integer load/store)
	// ppc64x:"FCPSGN"
	// riscv64:"FSGNJD"
	// wasm:"F64Copysign"
	sink64[0] = math.Copysign(a, b)

	// amd64:"BTSQ\t[$]63"

	MOVQ R11, DI
	VMOVDQU (DI), Y2
	VMOVDQU 32(DI), Y4
	VPCMPEQB Y1, Y2, Y3
	VPCMPEQB Y1, Y4, Y5
	VPMOVMSKB Y3, DX
	VPMOVMSKB Y5, CX
	// Exit AVX mode.
	VZEROUPPER
	SALQ $32, CX
	ORQ CX, DX

	// Create mask to ignore overlap between previous 64 byte block
	// and the next.
	ANDQ $63, BX
	MOVQ $64, CX
	SUBQ BX, CX
	MOVQ $0xFFFFFFFFFFFFFFFF, R10
	SALQ CL, R10
	// Apply mask

		{name: "ORQ", argLength: 2, reg: gp21, asm: "ORQ", commutative: true, resultInArg0: true, clobberFlags: true},                                                 // arg0 | arg1