b, err = cmd.CombinedOutput()
		if err != nil {
			t.Fatalf("build failed (%v): %s", err, b)
		}
		mcov := collectInlCands(string(b))

		// Make sure that there aren't any functions that are marked
		// as inline candidates at base but not with coverage.
		for k := range mbase {
			if _, ok := mcov[k]; !ok {
				t.Errorf("error: did not find %s in coverage -m output", k)
			}
		}
	}

// rotate by constants
(ROLQ x (MOV(Q|L)const [c])) => (ROLQconst [int8(c&63)] x)
(ROLL x (MOV(Q|L)const [c])) => (ROLLconst [int8(c&31)] x)
(ROLW x (MOV(Q|L)const [c])) => (ROLWconst [int8(c&15)] x)
(ROLB x (MOV(Q|L)const [c])) => (ROLBconst [int8(c&7) ] x)

(RORQ x (MOV(Q|L)const [c])) => (ROLQconst [int8((-c)&63)] x)
(RORL x (MOV(Q|L)const [c])) => (ROLLconst [int8((-c)&31)] x)
(RORW x (MOV(Q|L)const [c])) => (ROLWconst [int8((-c)&15)] x)

	MOVF	F27, (24*8)(X2)

	MOV	m_g0(X10), g
	CALL	runtime·save_g(SB)

	CALL	runtime·mstart(SB)

	// Restore callee-save registers.
	MOV	(1*8)(X2), X8
	MOV	(2*8)(X2), X9
	MOV	(3*8)(X2), X18
	MOV	(4*8)(X2), X19
	MOV	(5*8)(X2), X20
	MOV	(6*8)(X2), X21
	MOV	(7*8)(X2), X22
	MOV	(8*8)(X2), X23
	MOV	(9*8)(X2), X24
	MOV	(10*8)(X2), X25
	MOV	(11*8)(X2), X26
	MOV	(12*8)(X2), g
	MOVF	(13*8)(X2), F8

	// X11 already saved (A1)
	MOV	X12, 6*8(X2)
	MOV	X13, 7*8(X2)
	MOV	X14, 8*8(X2)
	MOV	X15, 9*8(X2)
	MOV	X16, 10*8(X2)
	MOV	X17, 11*8(X2)
	MOV	X18, 12*8(X2)
	MOV	X19, 13*8(X2)
	MOV	X20, 14*8(X2)
	MOV	X21, 15*8(X2)
	MOV	X22, 16*8(X2)
	MOV	X23, 17*8(X2)
	MOV	X24, 18*8(X2)
	MOV	X25, 19*8(X2)
	MOV	X26, 20*8(X2)
	// X27 is g.
	MOV	X28, 21*8(X2)
	MOV	X29, 22*8(X2)
	MOV	X30, 23*8(X2)

	BNEZ	X5, f_align

f_loop_check:
	MOV	$16, X9
	BLT	X12, X9, f_loop8_check
	MOV	$32, X9
	BLT	X12, X9, f_loop16_check
	MOV	$64, X9
	BLT	X12, X9, f_loop32_check
f_loop64:
	MOV	0(X11), X14
	MOV	8(X11), X15
	MOV	16(X11), X16
	MOV	24(X11), X17
	MOV	32(X11), X18
	MOV	40(X11), X19
	MOV	48(X11), X20
	MOV	56(X11), X21
	MOV	X14, 0(X10)
	MOV	X15, 8(X10)
	MOV	X16, 16(X10)
	MOV	X17, 24(X10)
	MOV	X18, 32(X10)

TEXT ·Syscall6(SB),NOSPLIT,$0-80
	JMP	syscall·Syscall6(SB)

TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
	CALL	runtime·entersyscall(SB)
	MOV	a1+8(FP), A0
	MOV	a2+16(FP), A1
	MOV	a3+24(FP), A2
	MOV	trap+0(FP), A7	// syscall entry
	ECALL
	MOV	A0, r1+32(FP)	// r1
	MOV	A1, r2+40(FP)	// r2
	CALL	runtime·exitsyscall(SB)
	RET

TEXT ·RawSyscall(SB),NOSPLIT,$0-56
	JMP	syscall·RawSyscall(SB)

//      }
TEXT ·Cas(SB), NOSPLIT, $0-17
	MOV	ptr+0(FP), A0
	MOVW	old+8(FP), A1
	MOVW	new+12(FP), A2
cas_again:
	LRW	(A0), A3
	BNE	A3, A1, cas_fail
	SCW	A2, (A0), A4
	BNE	A4, ZERO, cas_again
	MOV	$1, A0
	MOVB	A0, ret+16(FP)
	RET
cas_fail:
	MOV	$0, A0
	MOV	A0, ret+16(FP)
	RET

// func Cas64(ptr *uint64, old, new uint64) bool
TEXT ·Cas64(SB), NOSPLIT, $0-25
	MOV	ptr+0(FP), A0
	MOV	old+8(FP), A1

	BNE	X19, X20, not_eq
	ADD	$1, X10
	ADD	$1, X11
	BNEZ	X9, align

loop32_check:
	MOV	$32, X9
	BLT	X12, X9, loop16_check
loop32:
	MOV	0(X10), X19
	MOV	0(X11), X20
	MOV	8(X10), X21
	MOV	8(X11), X22
	BNE	X19, X20, not_eq
	BNE	X21, X22, not_eq
	MOV	16(X10), X14
	MOV	16(X11), X15
	MOV	24(X10), X16
	MOV	24(X11), X17
	BNE	X14, X15, not_eq
	BNE	X16, X17, not_eq
	ADD	$32, X10
	ADD	$32, X11

TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-48
	MOV	a1+8(FP), A0
	MOV	a2+16(FP), A1
	MOV	a3+24(FP), A2
	MOV	ZERO, A3
	MOV	ZERO, A4
	MOV	ZERO, A5
	MOV	trap+0(FP), A7	// syscall entry
	ECALL
	MOV	$-4096, T0
	BLTU	T0, A0, err
	MOV	A0, r1+32(FP)	// r1
	MOV	ZERO, err+40(FP)	// errno
	RET
err:
	MOV	$-1, T0
	MOV	T0, r1+32(FP)	// r1
	SUB	A0, ZERO, A0
	MOV	A0, err+40(FP)	// errno
	RET

// err | A2          | part of A0
TEXT ·Syscall6<ABIInternal>(SB),NOSPLIT,$0-80
	MOV	A0, A7
	MOV	A1, A0
	MOV	A2, A1
	MOV	A3, A2
	MOV	A4, A3
	MOV	A5, A4
	MOV	A6, A5
	ECALL
	MOV	$-4096, T0
	BLTU	T0, A0, err
	// r1 already in A0
	// r2 already in A1
	MOV	ZERO, A2 // errno
	RET
err:
	SUB	A0, ZERO, A2 // errno
	MOV	$-1, A0	     // r1
	MOV	ZERO, A1     // r2