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Golang Addr.Index方法代碼示例

本文整理匯總了Golang中cmd/internal/obj.Addr.Index方法的典型用法代碼示例。如果您正苦於以下問題：Golang Addr.Index方法的具體用法？Golang Addr.Index怎麽用？Golang Addr.Index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cmd/internal/obj.Addr的用法示例。


在下文中一共展示了Addr.Index方法的6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: nacladdr

func nacladdr(ctxt *obj.Link, p *obj.Prog, a *obj.Addr) {
	if p.As == ALEAL || p.As == ALEAQ {
		return
	}

	if a.Reg == REG_BP {
		ctxt.Diag("invalid address: %v", p)
		return
	}

	if a.Reg == REG_TLS {
		a.Reg = REG_BP
	}
	if a.Type == obj.TYPE_MEM && a.Name == obj.NAME_NONE {
		switch a.Reg {
		// all ok
		case REG_BP, REG_SP, REG_R15:
			break

		default:
			if a.Index != REG_NONE {
				ctxt.Diag("invalid address %v", p)
			}
			a.Index = a.Reg
			if a.Index != REG_NONE {
				a.Scale = 1
			}
			a.Reg = REG_R15
		}
	}
}
開發者ID:duhaibo0404，項目名稱:go-1，代碼行數:31，代碼來源:obj6.go

示例2: copysub

// copysub substitute s for v in a.
// copysub returns true on failure to substitute. TODO(dfc) reverse this logic, copysub should return false on failure
func copysub(a *obj.Addr, v *obj.Addr, s *obj.Addr, f bool) bool {
	if copyas(a, v) {
		if s.Reg >= x86.REG_AX && s.Reg <= x86.REG_R15 || s.Reg >= x86.REG_X0 && s.Reg <= x86.REG_X0+15 {
			if f {
				a.Reg = s.Reg
			}
		}
		return false
	}

	if regtyp(v) {
		if a.Type == obj.TYPE_MEM && a.Reg == v.Reg {
			if (s.Reg == x86.REG_BP || s.Reg == x86.REG_R13) && a.Index != x86.REG_NONE {
				return true /* can't use BP-base with index */
			}
			if f {
				a.Reg = s.Reg
			}
		}
		if a.Index == v.Reg {
			if f {
				a.Index = s.Reg
			}
		}
	}
	return false
}
開發者ID:2thetop，項目名稱:go，代碼行數:29，代碼來源:peep.go

示例3: indir_cx

func indir_cx(ctxt *obj.Link, p *obj.Prog, a *obj.Addr) {
	if ctxt.Headtype == obj.Hnacl && p.Mode == 64 {
		a.Type = obj.TYPE_MEM
		a.Reg = REG_R15
		a.Index = REG_CX
		a.Scale = 1
		return
	}

	a.Type = obj.TYPE_MEM
	a.Reg = REG_CX
}
開發者ID:achanda，項目名稱:go，代碼行數:12，代碼來源:obj6.go

示例4: copysub

/*
 * substitute s for v in a
 * return failure to substitute
 */
func copysub(a *obj.Addr, v *obj.Addr, s *obj.Addr, f int) int {
	if copyas(a, v) {
		reg := int(s.Reg)
		if reg >= x86.REG_AX && reg <= x86.REG_DI || reg >= x86.REG_X0 && reg <= x86.REG_X7 {
			if f != 0 {
				a.Reg = int16(reg)
			}
		}

		return 0
	}

	if regtyp(v) {
		reg := int(v.Reg)
		if a.Type == obj.TYPE_MEM && int(a.Reg) == reg {
			if (s.Reg == x86.REG_BP) && a.Index != obj.TYPE_NONE {
				return 1 /* can't use BP-base with index */
			}
			if f != 0 {
				a.Reg = s.Reg
			}
		}

		//			return 0;
		if int(a.Index) == reg {
			if f != 0 {
				a.Index = s.Reg
			}
			return 0
		}

		return 0
	}

	return 0
}
開發者ID:klueska，項目名稱:go-akaros，代碼行數:40，代碼來源:peep.go

示例5: sudoaddable


//.........這裏部分代碼省略.........
			x86.AADDW,
			x86.AADDL,
			x86.AADDQ,
			x86.ASUBB,
			x86.ASUBW,
			x86.ASUBL,
			x86.ASUBQ,
			x86.AANDB,
			x86.AANDW,
			x86.AANDL,
			x86.AANDQ,
			x86.AORB,
			x86.AORW,
			x86.AORL,
			x86.AORQ,
			x86.AXORB,
			x86.AXORW,
			x86.AXORL,
			x86.AXORQ,
			x86.AINCB,
			x86.AINCW,
			x86.AINCL,
			x86.AINCQ,
			x86.ADECB,
			x86.ADECW,
			x86.ADECL,
			x86.ADECQ,
			x86.AMOVB,
			x86.AMOVW,
			x86.AMOVL,
			x86.AMOVQ:
			break
		}

		cleani += 2
		reg := &clean[cleani-1]
		reg1 := &clean[cleani-2]
		reg.Op = gc.OEMPTY
		reg1.Op = gc.OEMPTY
		gc.Naddr(a, n)
		return true

	case gc.ODOT,
		gc.ODOTPTR:
		cleani += 2
		reg := &clean[cleani-1]
		reg1 := &clean[cleani-2]
		reg.Op = gc.OEMPTY
		reg1.Op = gc.OEMPTY
		var nn *gc.Node
		var oary [10]int64
		o := gc.Dotoffset(n, oary[:], &nn)
		if nn == nil {
			sudoclean()
			return false
		}

		if nn.Addable && o == 1 && oary[0] >= 0 {
			// directly addressable set of DOTs
			n1 := *nn

			n1.Type = n.Type
			n1.Xoffset += oary[0]
			gc.Naddr(a, &n1)
			return true
		}

		gc.Regalloc(reg, gc.Types[gc.Tptr], nil)
		n1 := *reg
		n1.Op = gc.OINDREG
		if oary[0] >= 0 {
			gc.Agen(nn, reg)
			n1.Xoffset = oary[0]
		} else {
			gc.Cgen(nn, reg)
			gc.Cgen_checknil(reg)
			n1.Xoffset = -(oary[0] + 1)
		}

		for i := 1; i < o; i++ {
			if oary[i] >= 0 {
				gc.Fatal("can't happen")
			}
			gins(movptr, &n1, reg)
			gc.Cgen_checknil(reg)
			n1.Xoffset = -(oary[i] + 1)
		}

		a.Type = obj.TYPE_NONE
		a.Index = obj.TYPE_NONE
		gc.Fixlargeoffset(&n1)
		gc.Naddr(a, &n1)
		return true

	case gc.OINDEX:
		return false
	}

	return false
}
開發者ID:wheelcomplex，項目名稱:go-1，代碼行數:101，代碼來源:gsubr.go

示例6: sudoaddable


//.........這裏部分代碼省略.........
			s390x.AMOVBZ,
			s390x.AMOVH,
			s390x.AMOVHZ,
			s390x.AMOVW,
			s390x.AMOVWZ,
			s390x.AMOVD:
			if int64(int32(v)) != v {
				return false
			}

		// for comparisons avoid immediates unless they can
		// fit into a int8/uint8
		// this favours combined compare and branch instructions
		case s390x.ACMP:
			if int64(int8(v)) != v {
				return false
			}
		case s390x.ACMPU:
			if int64(uint8(v)) != v {
				return false
			}
		}

		cleani += 2
		reg := &clean[cleani-1]
		reg1 := &clean[cleani-2]
		reg.Op = gc.OEMPTY
		reg1.Op = gc.OEMPTY
		gc.Naddr(a, n)
		return true

	case gc.ODOT,
		gc.ODOTPTR:
		cleani += 2
		reg := &clean[cleani-1]
		reg1 := &clean[cleani-2]
		reg.Op = gc.OEMPTY
		reg1.Op = gc.OEMPTY
		var nn *gc.Node
		var oary [10]int64
		o := gc.Dotoffset(n, oary[:], &nn)
		if nn == nil {
			sudoclean()
			return false
		}

		if nn.Addable && o == 1 && oary[0] >= 0 {
			// directly addressable set of DOTs
			n1 := *nn

			n1.Type = n.Type
			n1.Xoffset += oary[0]
			// check that the offset fits into a 12-bit displacement
			if n1.Xoffset < 0 || n1.Xoffset >= (1<<12)-8 {
				sudoclean()
				return false
			}
			gc.Naddr(a, &n1)
			return true
		}

		gc.Regalloc(reg, gc.Types[gc.Tptr], nil)
		n1 := *reg
		n1.Op = gc.OINDREG
		if oary[0] >= 0 {
			gc.Agen(nn, reg)
			n1.Xoffset = oary[0]
		} else {
			gc.Cgen(nn, reg)
			gc.Cgen_checknil(reg)
			n1.Xoffset = -(oary[0] + 1)
		}

		for i := 1; i < o; i++ {
			if oary[i] >= 0 {
				gc.Fatalf("can't happen")
			}
			gins(s390x.AMOVD, &n1, reg)
			gc.Cgen_checknil(reg)
			n1.Xoffset = -(oary[i] + 1)
		}

		a.Type = obj.TYPE_NONE
		a.Index = 0
		// check that the offset fits into a 12-bit displacement
		if n1.Xoffset < 0 || n1.Xoffset >= (1<<12)-8 {
			tmp := n1
			tmp.Op = gc.OREGISTER
			tmp.Type = gc.Types[gc.Tptr]
			tmp.Xoffset = 0
			gc.Cgen_checknil(&tmp)
			ginscon(s390x.AADD, n1.Xoffset, &tmp)
			n1.Xoffset = 0
		}
		gc.Naddr(a, &n1)
		return true
	}

	return false
}
開發者ID:Greentor，項目名稱:go，代碼行數:101，代碼來源:gsubr.go


注：本文中的cmd/internal/obj.Addr.Index方法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。