// arm64:`.*runtime[.]gcWriteBarrier8\(SB\)`
	p[0] = a
	// amd64:-`.*runtime[.]gcWriteBarrier`
	// arm64:-`.*runtime[.]gcWriteBarrier`
	p[1] = b
	// amd64:-`.*runtime[.]gcWriteBarrier`
	// arm64:-`.*runtime[.]gcWriteBarrier`
	p[2] = c
	// amd64:-`.*runtime[.]gcWriteBarrier`
	// arm64:-`.*runtime[.]gcWriteBarrier`
	p[3] = d

	*t = Z1{}
}

type Z2 struct {
	a, b, c *int
}

func Zero2(t *Z2) {
	// amd64:`MOVUPS\tX[0-9]+, \(.*\)`,`MOVQ\t\$0, 16\(.*\)`
	// amd64:`.*runtime[.]gcWriteBarrier.*\(SB\)`
	*t = Z2{}
}

// ------------------ //
//    Initializing    //
// ------------------ //

type I1 struct {
	a, b, c, d int
}

func Init1(p *I1) { // Issue #18872

	CheckPtrAlignment *obj.LSym
	Deferproc         *obj.LSym
	Deferprocat       *obj.LSym
	DeferprocStack    *obj.LSym
	Deferreturn       *obj.LSym
	Duffcopy          *obj.LSym
	Duffzero          *obj.LSym
	GCWriteBarrier    [8]*obj.LSym
	Goschedguarded    *obj.LSym
	Growslice         *obj.LSym
	InterfaceSwitch   *obj.LSym
	Memmove           *obj.LSym
	Msanread          *obj.LSym
	Msanwrite         *obj.LSym

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// This implements the write barrier buffer. The write barrier itself
// is gcWriteBarrier and is implemented in assembly.
//
// See mbarrier.go for algorithmic details on the write barrier. This
// file deals only with the buffer.
//
// The write barrier has a fast path and a slow path. The fast path

	{"deferproc", 1},
	{"deferprocStack", 1},
	{"deferreturn", 1},
	{"newproc", 1},
	{"panicoverflow", 1},
	{"sigpanic", 1},

	// compiler backend inserted calls
	{"gcWriteBarrier", 1},
	{"duffzero", 1},
	{"duffcopy", 1},

	// assembler backend inserted calls
	{"morestack", 0},        // asm function, ABI0
	{"morestackc", 0},       // asm function, ABI0

	{"runtime.deferproc", 1},
	{"runtime.deferprocStack", 1},
	{"runtime.deferreturn", 1},
	{"runtime.newproc", 1},
	{"runtime.panicoverflow", 1},
	{"runtime.sigpanic", 1},
	{"runtime.gcWriteBarrier", 1},
	{"runtime.duffzero", 1},
	{"runtime.duffcopy", 1},
	{"runtime.morestack", 0},
	{"runtime.morestackc", 0},
	{"runtime.morestack_noctxt", 0},
	{"type:int8", 0},
	{"type:*int8", 0},