check.recordBuiltinType(call.Fun, sig)
		}

	case _Cap, _Len:
		// cap(x)
		// len(x)
		mode := invalid
		var val constant.Value
		switch t := arrayPtrDeref(under(x.typ)).(type) {
		case *Basic:
			if isString(t) && id == _Len {
				if x.mode == constant_ {
					mode = constant_
					val = constant.MakeInt64(int64(len(constant.StringVal(x.val))))
				} else {
					mode = value
				}
			}

			check.recordBuiltinType(call.Fun, sig)
		}

	case _Cap, _Len:
		// cap(x)
		// len(x)
		mode := invalid
		var val constant.Value
		switch t := arrayPtrDeref(under(x.typ)).(type) {
		case *Basic:
			if isString(t) && id == _Len {
				if x.mode == constant_ {
					mode = constant_
					val = constant.MakeInt64(int64(len(constant.StringVal(x.val))))
				} else {
					mode = value
				}
			}

	_Complex: {"complex", 2, false, expression},
	_Copy:    {"copy", 2, false, statement},
	_Delete:  {"delete", 2, false, statement},
	_Imag:    {"imag", 1, false, expression},
	_Len:     {"len", 1, false, expression},
	_Make:    {"make", 1, true, expression},
	// To disable max/min, remove the next two lines.
	_Max:     {"max", 1, true, expression},
	_Min:     {"min", 1, true, expression},

	_Complex: {"complex", 2, false, expression},
	_Copy:    {"copy", 2, false, statement},
	_Delete:  {"delete", 2, false, statement},
	_Imag:    {"imag", 1, false, expression},
	_Len:     {"len", 1, false, expression},
	_Make:    {"make", 1, true, expression},
	// To disable max/min, remove the next two lines.
	_Max:     {"max", 1, true, expression},
	_Min:     {"min", 1, true, expression},

		return
	}
	if kind != 0 && kind != vk {
		var inner bytes.Buffer
		if len(v.inner) > 0 {
			fmt.Fprintf(&inner, " containing")
			for i, vi := range v.inner {
				if i > 0 && len(v.inner) > 2 {
					fmt.Fprintf(&inner, ",")
				}
				fmt.Fprintf(&inner, " ")
				if i > 0 && i == len(v.inner)-1 {
					fmt.Fprintf(&inner, "and ")
				}
				fmt.Fprintf(&inner, "%s+%d(FP)", vi.name, vi.off)

	MOVL	a_base+0(FP), SI
	MOVL	a_len+4(FP), BX
	MOVL	b_base+12(FP), DI
	MOVL	b_len+16(FP), DX
	LEAL	ret+24(FP), AX
	JMP	cmpbody<>(SB)

TEXT runtime·cmpstring(SB),NOSPLIT,$0-20
	MOVL	a_base+0(FP), SI
	MOVL	a_len+4(FP), BX
	MOVL	b_base+8(FP), DI
	MOVL	b_len+12(FP), DX
	LEAL	ret+16(FP), AX
	JMP	cmpbody<>(SB)

// input:
//   SI = a
//   DI = b
//   BX = alen
//   DX = blen

	Get SP
	I64Load a_base+0(FP)
	I64Load a_len+8(FP)
	I64Load b_base+24(FP)
	I64Load b_len+32(FP)
	Call cmpbody<>(SB)
	I64Store ret+48(FP)
	RET

TEXT runtime·cmpstring(SB), NOSPLIT, $0-40
	Get SP
	I64Load a_base+0(FP)
	I64Load a_len+8(FP)
	I64Load b_base+16(FP)
	I64Load b_len+24(FP)
	Call cmpbody<>(SB)
	I64Store ret+32(FP)
	RET

// params: a, alen, b, blen
// ret: -1/0/1
TEXT cmpbody<>(SB), NOSPLIT, $0-0

	// AX = a_base (want in SI)
	// BX = a_len  (want in BX)
	// CX = a_cap  (unused)
	// DI = b_base (want in DI)
	// SI = b_len  (want in DX)
	// R8 = b_cap  (unused)
	MOVQ	SI, DX
	MOVQ	AX, SI
	JMP	cmpbody<>(SB)

TEXT runtime·cmpstring<ABIInternal>(SB),NOSPLIT,$0-40
	// AX = a_base (want in SI)
	// BX = a_len  (want in BX)
	// CX = b_base (want in DI)
	// DI = b_len  (want in DX)
	MOVQ	AX, SI
	MOVQ	DI, DX

	MOVD	a_base+0(FP), R3
	MOVD	a_len+8(FP), R4
	MOVD	b_base+24(FP), R5
	MOVD	b_len+32(FP), R6
	LA	ret+48(FP), R7
	BR	cmpbody<>(SB)

TEXT runtime·cmpstring(SB),NOSPLIT|NOFRAME,$0-40
	MOVD	a_base+0(FP), R3
	MOVD	a_len+8(FP), R4
	MOVD	b_base+16(FP), R5
	MOVD	b_len+24(FP), R6
	LA	ret+32(FP), R7
	BR	cmpbody<>(SB)

// input:
//   R3 = a
//   R4 = alen
//   R5 = b
//   R6 = blen

//go:build mips || mipsle

#include "go_asm.h"
#include "textflag.h"

TEXT ·Compare(SB),NOSPLIT,$0-28
	MOVW	a_base+0(FP), R3
	MOVW	b_base+12(FP), R4
	MOVW	a_len+4(FP), R1
	MOVW	b_len+16(FP), R2
	BEQ	R3, R4, samebytes
	SGTU	R1, R2, R7
	MOVW	R1, R8
	CMOVN	R7, R2, R8	// R8 is min(R1, R2)

	ADDU	R3, R8	// R3 is current byte in a, R8 is last byte in a to compare
loop: