本文整理匯總了Golang中bootstrap/internal/obj.Prog.Pc方法的典型用法代碼示例。如果您正苦於以下問題：Golang Prog.Pc方法的具體用法？Golang Prog.Pc怎麽用？Golang Prog.Pc使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類bootstrap/internal/obj.Prog的用法示例。
在下文中一共展示了Prog.Pc方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: expandchecks
// Called after regopt and peep have run.
// Expand CHECKNIL pseudo-op into actual nil pointer check.
func expandchecks(firstp *obj.Prog) {
var p1 *obj.Prog
var p2 *obj.Prog
for p := firstp; p != nil; p = p.Link {
if p.As != obj.ACHECKNIL {
continue
}
if gc.Debug_checknil != 0 && p.Lineno > 1 { // p->lineno==1 in generated wrappers
gc.Warnl(int(p.Lineno), "generated nil check")
}
// check is
// CMP arg, $0
// JNE 2(PC) (likely)
// MOV AX, 0
p1 = gc.Ctxt.NewProg()
p2 = gc.Ctxt.NewProg()
gc.Clearp(p1)
gc.Clearp(p2)
p1.Link = p2
p2.Link = p.Link
p.Link = p1
p1.Lineno = p.Lineno
p2.Lineno = p.Lineno
p1.Pc = 9999
p2.Pc = 9999
p.As = int16(cmpptr)
p.To.Type = obj.TYPE_CONST
p.To.Offset = 0
p1.As = x86.AJNE
p1.From.Type = obj.TYPE_CONST
p1.From.Offset = 1 // likely
p1.To.Type = obj.TYPE_BRANCH
p1.To.Val = p2.Link
// crash by write to memory address 0.
// if possible, since we know arg is 0, use 0(arg),
// which will be shorter to encode than plain 0.
p2.As = x86.AMOVL
p2.From.Type = obj.TYPE_REG
p2.From.Reg = x86.REG_AX
if regtyp(&p.From) {
p2.To.Type = obj.TYPE_MEM
p2.To.Reg = p.From.Reg
} else {
p2.To.Type = obj.TYPE_MEM
p2.To.Reg = x86.REG_NONE
}
p2.To.Offset = 0
}
}示例2: append
// append adds the Prog to the end of the program-thus-far.
// If doLabel is set, it also defines the labels collect for this Prog.
func (p *Parser) append(prog *obj.Prog, cond string, doLabel bool) {
if cond != "" {
switch p.arch.Thechar {
case '5':
if !arch.ARMConditionCodes(prog, cond) {
p.errorf("unrecognized condition code .%q", cond)
return
}
case '7':
if !arch.ARM64Suffix(prog, cond) {
p.errorf("unrecognized suffix .%q", cond)
return
}
default:
p.errorf("unrecognized suffix .%q", cond)
return
}
}
if p.firstProg == nil {
p.firstProg = prog
} else {
p.lastProg.Link = prog
}
p.lastProg = prog
if doLabel {
p.pc++
for _, label := range p.pendingLabels {
if p.labels[label] != nil {
p.errorf("label %q multiply defined", label)
return
}
p.labels[label] = prog
}
p.pendingLabels = p.pendingLabels[0:0]
}
prog.Pc = int64(p.pc)
if *flags.Debug {
fmt.Println(p.histLineNum, prog)
}
if testOut != nil {
fmt.Fprintln(testOut, prog)
}
}示例3: Clearp
func Clearp(p *obj.Prog) {
obj.Nopout(p)
p.As = obj.AEND
p.Pc = int64(pcloc)
pcloc++
}