Golang gc.Prog函數代碼示例

本文整理匯總了Golang中cmd/compile/internal/gc.Prog函數的典型用法代碼示例。如果您正苦於以下問題：Golang Prog函數的具體用法？Golang Prog怎麽用？Golang Prog使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。

在下文中一共展示了Prog函數的15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: ginsnop

func ginsnop() {
	p := gc.Prog(s390x.AOR)
	p.From.Type = obj.TYPE_REG
	p.From.Reg = int16(s390x.REG_R0)
	p.To.Type = obj.TYPE_REG
	p.To.Reg = int16(s390x.REG_R0)
}

開發者ID:achanda，項目名稱:go，代碼行數:7，代碼來源:ggen.go

示例2: push

// push pushes v onto the floating-point stack.  v must be in a register.
func push(s *gc.SSAGenState, v *ssa.Value) {
	p := gc.Prog(x86.AFMOVD)
	p.From.Type = obj.TYPE_REG
	p.From.Reg = s.SSEto387[v.Reg()]
	p.To.Type = obj.TYPE_REG
	p.To.Reg = x86.REG_F0
}

開發者ID:achanda，項目名稱:go，代碼行數:8，代碼來源:387.go

示例3: ginsnop

func ginsnop() {
	p := gc.Prog(mips.ANOR)
	p.From.Type = obj.TYPE_REG
	p.From.Reg = mips.REG_R0
	p.To.Type = obj.TYPE_REG
	p.To.Reg = mips.REG_R0
}

開發者ID:kuangchanglang，項目名稱:go，代碼行數:7，代碼來源:ggen.go

示例4: opregreg

// opregreg emits instructions for
//     dest := dest(To) op src(From)
// and also returns the created obj.Prog so it
// may be further adjusted (offset, scale, etc).
func opregreg(op obj.As, dest, src int16) *obj.Prog {
	p := gc.Prog(op)
	p.From.Type = obj.TYPE_REG
	p.To.Type = obj.TYPE_REG
	p.To.Reg = dest
	p.From.Reg = src
	return p
}

開發者ID:duhaibo0404，項目名稱:go-1，代碼行數:12，代碼來源:ssa.go

示例5: opregregimm

// opregregimm emits instructions for
//	dest := src(From) op off
// and also returns the created obj.Prog so it
// may be further adjusted (offset, scale, etc).
func opregregimm(op obj.As, dest, src int16, off int64) *obj.Prog {
	p := gc.Prog(op)
	p.From.Type = obj.TYPE_CONST
	p.From.Offset = off
	p.Reg = src
	p.To.Reg = dest
	p.To.Type = obj.TYPE_REG
	return p
}

開發者ID:kuangchanglang，項目名稱:go，代碼行數:13，代碼來源:ssa.go

示例6: ssaGenISEL

func ssaGenISEL(v *ssa.Value, cr int64, r1, r2 int16) {
	r := v.Reg()
	p := gc.Prog(ppc64.AISEL)
	p.To.Type = obj.TYPE_REG
	p.To.Reg = r
	p.Reg = r1
	p.From3 = &obj.Addr{Type: obj.TYPE_REG, Reg: r2}
	p.From.Type = obj.TYPE_CONST
	p.From.Offset = cr
}

開發者ID:achanda，項目名稱:go，代碼行數:10，代碼來源:ssa.go

示例7: flush387

// flush387 removes all entries from the 387 floating-point stack.
func flush387(s *gc.SSAGenState) {
	for k := range s.SSEto387 {
		p := gc.Prog(x86.AFMOVDP)
		p.From.Type = obj.TYPE_REG
		p.From.Reg = x86.REG_F0
		p.To.Type = obj.TYPE_REG
		p.To.Reg = x86.REG_F0
		delete(s.SSEto387, k)
	}
}

開發者ID:achanda，項目名稱:go，代碼行數:11，代碼來源:387.go

示例8: rawgins

// generate one instruction:
//	as f, t
func rawgins(as obj.As, f *gc.Node, t *gc.Node) *obj.Prog {
	// self move check
	// TODO(mundaym): use sized math and extend to MOVB, MOVWZ etc.
	switch as {
	case s390x.AMOVD, s390x.AFMOVS, s390x.AFMOVD:
		if f != nil && t != nil &&
			f.Op == gc.OREGISTER && t.Op == gc.OREGISTER &&
			f.Reg == t.Reg {
			return nil
		}
	}

	p := gc.Prog(as)
	gc.Naddr(&p.From, f)
	gc.Naddr(&p.To, t)

	switch as {
	// Bad things the front end has done to us. Crash to find call stack.
	case s390x.ACMP, s390x.ACMPU:
		if p.From.Type == obj.TYPE_MEM || p.To.Type == obj.TYPE_MEM {
			gc.Debug['h'] = 1
			gc.Fatalf("bad inst: %v", p)
		}
	}

	if gc.Debug['g'] != 0 {
		fmt.Printf("%v\n", p)
	}

	w := int32(0)
	switch as {
	case s390x.AMOVB, s390x.AMOVBZ:
		w = 1

	case s390x.AMOVH, s390x.AMOVHZ:
		w = 2

	case s390x.AMOVW, s390x.AMOVWZ:
		w = 4

	case s390x.AMOVD:
		if p.From.Type == obj.TYPE_CONST || p.From.Type == obj.TYPE_ADDR {
			break
		}
		w = 8
	}

	if w != 0 && ((f != nil && p.From.Width < int64(w)) || (t != nil && p.To.Type != obj.TYPE_REG && p.To.Width > int64(w))) {
		gc.Dump("f", f)
		gc.Dump("t", t)
		gc.Fatalf("bad width: %v (%d, %d)\n", p, p.From.Width, p.To.Width)
	}

	return p
}

開發者ID:Greentor，項目名稱:go，代碼行數:57，代碼來源:gsubr.go

示例9: genshift

// genshift generates a Prog for r = r0 op (r1 shifted by s)
func genshift(as obj.As, r0, r1, r int16, typ int64, s int64) *obj.Prog {
	p := gc.Prog(as)
	p.From.Type = obj.TYPE_SHIFT
	p.From.Offset = int64(makeshift(r1, typ, s))
	p.Reg = r0
	if r != 0 {
		p.To.Type = obj.TYPE_REG
		p.To.Reg = r
	}
	return p
}

開發者ID:achanda，項目名稱:go，代碼行數:12，代碼來源:ssa.go

示例10: ssaGenBlock

func ssaGenBlock(s *gc.SSAGenState, b, next *ssa.Block) {
	s.SetLineno(b.Line)

	switch b.Kind {
	case ssa.BlockCall:
		if b.Succs[0] != next {
			p := gc.Prog(obj.AJMP)
			p.To.Type = obj.TYPE_BRANCH
			s.Branches = append(s.Branches, gc.Branch{p, b.Succs[0]})
		}
	case ssa.BlockRet:
		gc.Prog(obj.ARET)
	case ssa.BlockARMLT:
		p := gc.Prog(arm.ABGE)
		p.To.Type = obj.TYPE_BRANCH
		s.Branches = append(s.Branches, gc.Branch{p, b.Succs[0]})
		p = gc.Prog(obj.AJMP)
		p.To.Type = obj.TYPE_BRANCH
		s.Branches = append(s.Branches, gc.Branch{p, b.Succs[1]})
	}
}

開發者ID:duhaibo0404，項目名稱:go-1，代碼行數:21，代碼來源:ssa.go

示例11: rawgins

/*
 * generate one instruction:
 *	as f, t
 */
func rawgins(as int, f *gc.Node, t *gc.Node) *obj.Prog {
	// TODO(austin): Add self-move test like in 6g (but be careful
	// of truncation moves)

	p := gc.Prog(as)
	gc.Naddr(&p.From, f)
	gc.Naddr(&p.To, t)

	switch as {
	// Bad things the front end has done to us. Crash to find call stack.
	case s390x.AAND, s390x.AMULLD:
		if p.From.Type == obj.TYPE_CONST {
			gc.Debug['h'] = 1
			gc.Fatalf("bad inst: %v", p)
		}
	case s390x.ACMP, s390x.ACMPU:
		if p.From.Type == obj.TYPE_MEM || p.To.Type == obj.TYPE_MEM {
			gc.Debug['h'] = 1
			gc.Fatalf("bad inst: %v", p)
		}
	}

	if gc.Debug['g'] != 0 {
		fmt.Printf("%v\n", p)
	}

	w := int32(0)
	switch as {
	case s390x.AMOVB, s390x.AMOVBZ:
		w = 1

	case s390x.AMOVH, s390x.AMOVHZ:
		w = 2

	case s390x.AMOVW, s390x.AMOVWZ:
		w = 4

	case s390x.AMOVD:
		if p.From.Type == obj.TYPE_CONST || p.From.Type == obj.TYPE_ADDR {
			break
		}
		w = 8
	}

	if w != 0 && ((f != nil && p.From.Width < int64(w)) || (t != nil && p.To.Type != obj.TYPE_REG && p.To.Width > int64(w))) {
		gc.Dump("f", f)
		gc.Dump("t", t)
		gc.Fatalf("bad width: %v (%d, %d)\n", p, p.From.Width, p.To.Width)
	}

	return p
}

開發者ID:wycharry，項目名稱:go，代碼行數:56，代碼來源:gsubr.go

示例12: gmvc

// gmvc tries to move f to t using a mvc instruction.
// If successful it returns true, otherwise it returns false.
func gmvc(f, t *gc.Node) bool {
	ft := int(gc.Simsimtype(f.Type))
	tt := int(gc.Simsimtype(t.Type))

	if ft != tt {
		return false
	}

	if f.Op != gc.OINDREG || t.Op != gc.OINDREG {
		return false
	}

	if f.Xoffset < 0 || f.Xoffset >= 4096 {
		return false
	}

	if t.Xoffset < 0 || t.Xoffset >= 4096 {
		return false
	}

	var len int64
	switch ft {
	case gc.TUINT8, gc.TINT8, gc.TBOOL:
		len = 1
	case gc.TUINT16, gc.TINT16:
		len = 2
	case gc.TUINT32, gc.TINT32, gc.TFLOAT32:
		len = 4
	case gc.TUINT64, gc.TINT64, gc.TFLOAT64, gc.TPTR64:
		len = 8
	case gc.TUNSAFEPTR:
		len = int64(gc.Widthptr)
	default:
		return false
	}

	p := gc.Prog(s390x.AMVC)
	gc.Naddr(&p.From, f)
	gc.Naddr(&p.To, t)
	p.From3 = new(obj.Addr)
	p.From3.Offset = len
	p.From3.Type = obj.TYPE_CONST
	return true
}

開發者ID:wycharry，項目名稱:go，代碼行數:46，代碼來源:gsubr.go

示例13: popAndSave

// popAndSave pops a value off of the floating-point stack and stores
// it in the reigster assigned to v.
func popAndSave(s *gc.SSAGenState, v *ssa.Value) {
	r := v.Reg()
	if _, ok := s.SSEto387[r]; ok {
		// Pop value, write to correct register.
		p := gc.Prog(x86.AFMOVDP)
		p.From.Type = obj.TYPE_REG
		p.From.Reg = x86.REG_F0
		p.To.Type = obj.TYPE_REG
		p.To.Reg = s.SSEto387[v.Reg()] + 1
	} else {
		// Don't actually pop value. This 387 register is now the
		// new home for the not-yet-assigned-a-home SSE register.
		// Increase the register mapping of all other registers by one.
		for rSSE, r387 := range s.SSEto387 {
			s.SSEto387[rSSE] = r387 + 1
		}
		s.SSEto387[r] = x86.REG_F0
	}
}

開發者ID:achanda，項目名稱:go，代碼行數:21，代碼來源:387.go

示例14: rawgins

/*
 * generate one instruction:
 *	as f, t
 */
func rawgins(as int, f *gc.Node, t *gc.Node) *obj.Prog {
	// TODO(austin): Add self-move test like in 6g (but be careful
	// of truncation moves)

	p := gc.Prog(as)
	gc.Naddr(&p.From, f)
	gc.Naddr(&p.To, t)

	switch as {
	case obj.ACALL:
		if p.To.Type == obj.TYPE_REG && p.To.Reg != ppc64.REG_CTR {
			// Allow front end to emit CALL REG, and rewrite into MOV REG, CTR; CALL CTR.
			if gc.Ctxt.Flag_dynlink {
				// Make sure function pointer is in R12 as well when
				// dynamically linking Go.
				// TODO(mwhudson): it would obviously be better to
				// change the register allocation to put the value in
				// R12 already, but I don't know how to do that.
				q := gc.Prog(as)
				q.As = ppc64.AMOVD
				q.From = p.To
				q.To.Type = obj.TYPE_REG
				q.To.Reg = ppc64.REG_R12
			}
			pp := gc.Prog(as)
			pp.From = p.From
			pp.To.Type = obj.TYPE_REG
			pp.To.Reg = ppc64.REG_CTR

			p.As = ppc64.AMOVD
			p.From = p.To
			p.To.Type = obj.TYPE_REG
			p.To.Reg = ppc64.REG_CTR

			if gc.Debug['g'] != 0 {
				fmt.Printf("%v\n", p)
				fmt.Printf("%v\n", pp)
			}

			return pp
		}

	// Bad things the front end has done to us. Crash to find call stack.
	case ppc64.AAND, ppc64.AMULLD:
		if p.From.Type == obj.TYPE_CONST {
			gc.Debug['h'] = 1
			gc.Fatalf("bad inst: %v", p)
		}
	case ppc64.ACMP, ppc64.ACMPU:
		if p.From.Type == obj.TYPE_MEM || p.To.Type == obj.TYPE_MEM {
			gc.Debug['h'] = 1
			gc.Fatalf("bad inst: %v", p)
		}
	}

	if gc.Debug['g'] != 0 {
		fmt.Printf("%v\n", p)
	}

	w := int32(0)
	switch as {
	case ppc64.AMOVB,
		ppc64.AMOVBU,
		ppc64.AMOVBZ,
		ppc64.AMOVBZU:
		w = 1

	case ppc64.AMOVH,
		ppc64.AMOVHU,
		ppc64.AMOVHZ,
		ppc64.AMOVHZU:
		w = 2

	case ppc64.AMOVW,
		ppc64.AMOVWU,
		ppc64.AMOVWZ,
		ppc64.AMOVWZU:
		w = 4

	case ppc64.AMOVD,
		ppc64.AMOVDU:
		if p.From.Type == obj.TYPE_CONST || p.From.Type == obj.TYPE_ADDR {
			break
		}
		w = 8
	}

	if w != 0 && ((f != nil && p.From.Width < int64(w)) || (t != nil && p.To.Type != obj.TYPE_REG && p.To.Width > int64(w))) {
		gc.Dump("f", f)
		gc.Dump("t", t)
		gc.Fatalf("bad width: %v (%d, %d)\n", p, p.From.Width, p.To.Width)
	}

	return p
}

開發者ID:arnold8，項目名稱:go，代碼行數:99，代碼來源:gsubr.go

示例15: gins

/*
 * generate one instruction:
 *	as f, t
 */
func gins(as int, f *gc.Node, t *gc.Node) *obj.Prog {
	if as == x86.AFMOVF && f != nil && f.Op == gc.OREGISTER && t != nil && t.Op == gc.OREGISTER {
		gc.Fatalf("gins MOVF reg, reg")
	}
	if as == x86.ACVTSD2SS && f != nil && f.Op == gc.OLITERAL {
		gc.Fatalf("gins CVTSD2SS const")
	}
	if as == x86.AMOVSD && t != nil && t.Op == gc.OREGISTER && t.Reg == x86.REG_F0 {
		gc.Fatalf("gins MOVSD into F0")
	}

	if as == x86.AMOVL && f != nil && f.Op == gc.OADDR && f.Left.Op == gc.ONAME && f.Left.Class != gc.PEXTERN && f.Left.Class != gc.PFUNC {
		// Turn MOVL $xxx(FP/SP) into LEAL xxx.
		// These should be equivalent but most of the backend
		// only expects to see LEAL, because that's what we had
		// historically generated. Various hidden assumptions are baked in by now.
		as = x86.ALEAL
		f = f.Left
	}

	switch as {
	case x86.AMOVB,
		x86.AMOVW,
		x86.AMOVL:
		if f != nil && t != nil && samaddr(f, t) {
			return nil
		}

	case x86.ALEAL:
		if f != nil && gc.Isconst(f, gc.CTNIL) {
			gc.Fatalf("gins LEAL nil %v", f.Type)
		}
	}

	p := gc.Prog(as)
	gc.Naddr(&p.From, f)
	gc.Naddr(&p.To, t)

	if gc.Debug['g'] != 0 {
		fmt.Printf("%v\n", p)
	}

	w := 0
	switch as {
	case x86.AMOVB:
		w = 1

	case x86.AMOVW:
		w = 2

	case x86.AMOVL:
		w = 4
	}

	if true && w != 0 && f != nil && (p.From.Width > int64(w) || p.To.Width > int64(w)) {
		gc.Dump("bad width from:", f)
		gc.Dump("bad width to:", t)
		gc.Fatalf("bad width: %v (%d, %d)\n", p, p.From.Width, p.To.Width)
	}

	if p.To.Type == obj.TYPE_ADDR && w > 0 {
		gc.Fatalf("bad use of addr: %v", p)
	}

	return p
}

開發者ID:sreis，項目名稱:go，代碼行數:70，代碼來源:gsubr.go

注：本文中的cmd/compile/internal/gc.Prog函數示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。