// license that can be found in the LICENSE file.

//go:build (ppc64 || ppc64le) && !aix && !linux

package cpu

func osinit() {
	// Other operating systems do not support reading HWCap from auxiliary vector,
	// reading privileged system registers or sysctl in user space to detect CPU
	// features at runtime.

// license that can be found in the LICENSE file.

//go:build arm64

package runtime

import "internal/cpu"

func archauxv(tag, val uintptr) {
	switch tag {
	case _AT_HWCAP:
		cpu.HWCap = uint(val)
	}
}

func osArchInit() {}

//go:nosplit
func cputicks() int64 {
	// nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
	return nanotime()

	// n escapes; set up a call to makeslice.
	// When len and cap can fit into int, use makeslice instead of
	// makeslice64, which is faster and shorter on 32 bit platforms.

	len, cap := l, r

	fnname := "makeslice64"
	argtype := types.Types[types.TINT64]

	// Type checking guarantees that TIDEAL len/cap are positive and fit in an int.
	// The case of len or cap overflow when converting TUINT or TUINTPTR to TINT

	okforcap   [types.NTYPE]bool
	okforlen   [types.NTYPE]bool
	okforarith [types.NTYPE]bool
)

var builtinFuncs = [...]struct {
	name string
	op   ir.Op
}{
	{"append", ir.OAPPEND},
	{"cap", ir.OCAP},
	{"clear", ir.OCLEAR},
	{"close", ir.OCLOSE},
	{"complex", ir.OCOMPLEX},
	{"copy", ir.OCOPY},
	{"delete", ir.ODELETE},
	{"imag", ir.OIMAG},
	{"len", ir.OLEN},
	{"make", ir.OMAKE},
	{"max", ir.OMAX},

	ARM.HasTHUMBEE = isSet(hwCap, hwcap_THUMBEE)
	ARM.HasNEON = isSet(hwCap, hwcap_NEON)
	ARM.HasVFPv3 = isSet(hwCap, hwcap_VFPv3)
	ARM.HasVFPv3D16 = isSet(hwCap, hwcap_VFPv3D16)
	ARM.HasTLS = isSet(hwCap, hwcap_TLS)
	ARM.HasVFPv4 = isSet(hwCap, hwcap_VFPv4)
	ARM.HasIDIVA = isSet(hwCap, hwcap_IDIVA)
	ARM.HasIDIVT = isSet(hwCap, hwcap_IDIVT)
	ARM.HasVFPD32 = isSet(hwCap, hwcap_VFPD32)
	ARM.HasLPAE = isSet(hwCap, hwcap_LPAE)

	ARM64.HasFPHP = isSet(hwCap, hwcap_FPHP)
	ARM64.HasASIMDHP = isSet(hwCap, hwcap_ASIMDHP)
	ARM64.HasCPUID = isSet(hwCap, hwcap_CPUID)
	ARM64.HasASIMDRDM = isSet(hwCap, hwcap_ASIMDRDM)
	ARM64.HasJSCVT = isSet(hwCap, hwcap_JSCVT)
	ARM64.HasFCMA = isSet(hwCap, hwcap_FCMA)
	ARM64.HasLRCPC = isSet(hwCap, hwcap_LRCPC)
	ARM64.HasDCPOP = isSet(hwCap, hwcap_DCPOP)
	ARM64.HasSHA3 = isSet(hwCap, hwcap_SHA3)
	ARM64.HasSM3 = isSet(hwCap, hwcap_SM3)

)

func hwcapInit(os string) {
	// HWCap was populated by the runtime from the auxiliary vector.
	// Use HWCap information since reading aarch64 system registers
	// is not supported in user space on older linux kernels.
	ARM64.HasAES = isSet(HWCap, hwcap_AES)
	ARM64.HasPMULL = isSet(HWCap, hwcap_PMULL)
	ARM64.HasSHA1 = isSet(HWCap, hwcap_SHA1)
	ARM64.HasSHA2 = isSet(HWCap, hwcap_SHA2)
	ARM64.HasCRC32 = isSet(HWCap, hwcap_CRC32)

	if v := uint(MaxUint); v+1 != 0 {
		t.Errorf("MaxUint should wrap around to zero: %d", v+1)
	}
	if v := uint8(MaxUint8); v+1 != 0 {
		t.Errorf("MaxUint8 should wrap around to zero: %d", v+1)
	}
	if v := uint16(MaxUint16); v+1 != 0 {
		t.Errorf("MaxUint16 should wrap around to zero: %d", v+1)
	}
	if v := uint32(MaxUint32); v+1 != 0 {
		t.Errorf("MaxUint32 should wrap around to zero: %d", v+1)
	}
	if v := uint64(MaxUint64); v+1 != 0 {

                    <mxGeometry x="755" y="290" width="300" height="80" as="geometry"/>
                </mxCell>
                <mxCell id="6" value="" style="rounded=0;whiteSpace=wrap;html=1;fontStyle=1;strokeWidth=4;fillColor=#dae8fc;strokeColor=#6c8ebf;" parent="1" vertex="1">

	_Assert
	_Trace
)

var predeclaredFuncs = [...]struct {
	name     string
	nargs    int
	variadic bool
	kind     exprKind
}{
	_Append:  {"append", 1, true, expression},
	_Cap:     {"cap", 1, false, expression},
	_Clear:   {"clear", 1, false, statement},
	_Close:   {"close", 1, false, statement},
	_Complex: {"complex", 2, false, expression},
	_Copy:    {"copy", 2, false, statement},