}

// IsPtrElem reports whether t is the element of a pointer (to t).
func (t *Type) IsPtrElem() bool {
	return t.cache.ptr != nil
}

// IsUnsafePtr reports whether t is an unsafe pointer.
func (t *Type) IsUnsafePtr() bool {
	return t.kind == TUNSAFEPTR
}

// IsUintptr reports whether t is a uintptr.
func (t *Type) IsUintptr() bool {
	return t.kind == TUINTPTR
}

			init = append(init, typecheck.Stmt(r))
		}

		c = typecheck.ConvNop(c, types.Types[types.TUNSAFEPTR])
		setField("c", c)
		if !ir.IsBlank(elem) {
			elem = typecheck.ConvNop(elem, types.Types[types.TUNSAFEPTR])
			setField("elem", elem)
		}

		// TODO(mdempsky): There should be a cleaner way to
		// handle this.
		if base.Flag.Race {

	_ = x[TPTR-17]
	_ = x[TFUNC-18]
	_ = x[TSLICE-19]
	_ = x[TARRAY-20]
	_ = x[TSTRUCT-21]
	_ = x[TCHAN-22]
	_ = x[TMAP-23]
	_ = x[TINTER-24]
	_ = x[TFORW-25]
	_ = x[TANY-26]
	_ = x[TSTRING-27]
	_ = x[TUNSAFEPTR-28]
	_ = x[TIDEAL-29]
	_ = x[TNIL-30]
	_ = x[TBLANK-31]
	_ = x[TFUNCARGS-32]
	_ = x[TCHANARGS-33]
	_ = x[TSSA-34]
	_ = x[TTUPLE-35]
	_ = x[TRESULTS-36]
	_ = x[NTYPE-37]
}

	"cmd/internal/notsha256"
)

// BuiltinPkg is a fake package that declares the universe block.
var BuiltinPkg *Pkg

// LocalPkg is the package being compiled.
var LocalPkg *Pkg

// UnsafePkg is package unsafe.
var UnsafePkg *Pkg

// BlankSym is the blank (_) symbol.
var BlankSym *Sym

// numImport tracks how often a package with a given name is imported.

	// hp = &a[0]
	hp := typecheck.TempAt(base.Pos, ir.CurFunc, types.Types[types.TUNSAFEPTR])

	ix := ir.NewIndexExpr(base.Pos, a, ir.NewInt(base.Pos, 0))
	ix.SetBounded(true)
	addr := typecheck.ConvNop(typecheck.NodAddr(ix), types.Types[types.TUNSAFEPTR])
	n.Body.Append(ir.NewAssignStmt(base.Pos, hp, addr))

	// hn = len(a) * sizeof(elem(a))

			switch t1.kind {
			case TINT8, TUINT8, TINT16, TUINT16, TINT32, TUINT32, TINT64, TUINT64, TINT, TUINT, TUINTPTR, TCOMPLEX64, TCOMPLEX128, TFLOAT32, TFLOAT64, TBOOL, TSTRING, TPTR, TUNSAFEPTR:
				return true
			}
			// fall through to unnamed type comparison for complex types.
			goto cont
		}
		// Special case: we keep byte/uint8 and rune/int32
		// separate for error messages. Treat them as equal.

	if !t.HasPointers() {
		// Note: this case ensures that pointers to not-in-heap types
		// are not considered pointers by garbage collection and stack copying.
		return
	}

	switch t.Kind() {
	case types.TPTR, types.TUNSAFEPTR, types.TFUNC, types.TCHAN, types.TMAP:
		if off&int64(types.PtrSize-1) != 0 {
			base.Fatalf("typebits.Set: invalid alignment, %v", t)
		}
		bv.Set(int32(off / int64(types.PtrSize))) // pointer

	case types.TSTRING:

	case *ast.SelectorExpr:
		if t.X.(*ast.Ident).Name != "unsafe" || t.Sel.Name != "Pointer" {
			log.Fatalf("unhandled type: %#v", t)
		}
		return "types.Types[types.TUNSAFEPTR]"

	case *ast.ArrayType:
		if t.Len == nil {
			return fmt.Sprintf("types.NewSlice(%s)", i.subtype(t.Elt))
		}
		return fmt.Sprintf("types.NewArray(%s, %d)", i.subtype(t.Elt), intconst(t.Len))

	// Materalize expression corresponding to address of the meta-data symbol.
	mdax := typecheck.NodAddr(cnames.MetaVar)
	mdauspx := typecheck.ConvNop(mdax, types.Types[types.TUNSAFEPTR])

	// Materialize expression for length.
	lenx := ir.NewInt(base.Pos, int64(mdlen)) // untyped

	// Generate a call to runtime.addCovMeta, e.g.
	//

	typs[3] = types.NewPtr(typs[2])
	typs[4] = newSig(params(typs[1]), params(typs[3]))
	typs[5] = types.Types[types.TUINTPTR]
	typs[6] = types.Types[types.TBOOL]
	typs[7] = types.Types[types.TUNSAFEPTR]
	typs[8] = newSig(params(typs[5], typs[1], typs[6]), params(typs[7]))
	typs[9] = newSig(nil, nil)
	typs[10] = types.Types[types.TINTER]
	typs[11] = newSig(params(typs[10]), nil)
	typs[12] = types.Types[types.TINT32]