Golang gc.Dumpit函數代碼示例

本文整理匯總了Golang中cmd/compile/internal/gc.Dumpit函數的典型用法代碼示例。如果您正苦於以下問題：Golang Dumpit函數的具體用法？Golang Dumpit怎麽用？Golang Dumpit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Dumpit函數的7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: peep

func peep(firstp *obj.Prog) {
	g := gc.Flowstart(firstp, nil)
	if g == nil {
		return
	}
	gactive = 0

	run := func(name string, pass func(r *gc.Flow) int) int {
		n := pass(g.Start)
		if gc.Debug['P'] != 0 {
			fmt.Println(name, ":", n)
		}
		if gc.Debug['P'] != 0 && gc.Debug['v'] != 0 {
			gc.Dumpit(name, g.Start, 0)
		}
		return n
	}

	for {
		n := 0
		n += run("constant propagation", constantPropagation)
		n += run("copy propagation", copyPropagation)
		n += run("cast propagation", castPropagation)
		n += run("remove load-hit-stores", removeLoadHitStores)
		n += run("dead code elimination", deadCodeElimination)
		if n == 0 {
			break
		}
	}
	run("fuse op moves", fuseOpMoves)
	run("fuse clears", fuseClear)
	run("load pipelining", loadPipelining)
	run("fuse compare branch", fuseCompareBranch)
	run("simplify ops", simplifyOps)
	run("dead code elimination", deadCodeElimination)

	// TODO(mundaym): load/store multiple aren't currently handled by copyu
	// so this pass must be last.
	run("fuse multiple", fuseMultiple)

	gc.Flowend(g)
}

開發者ID:hurkgu，項目名稱:go，代碼行數:42，代碼來源:peep.go

示例2: peep

// UNUSED
func peep(firstp *obj.Prog) {
	g := (*gc.Graph)(gc.Flowstart(firstp, nil))
	if g == nil {
		return
	}
	gactive = 0

	var r *gc.Flow
	var p *obj.Prog
	var t int
loop1:
	if gc.Debug['P'] != 0 && gc.Debug['v'] != 0 {
		gc.Dumpit("loop1", g.Start, 0)
	}

	t = 0
	for r = g.Start; r != nil; r = r.Link {
		p = r.Prog
		switch p.As {
		/*
		 * elide shift into TYPE_SHIFT operand of subsequent instruction
		 */
		//			if(shiftprop(r)) {
		//				excise(r);
		//				t++;
		//				break;
		//			}
		case arm.ASLL,
			arm.ASRL,
			arm.ASRA:
			break

		case arm.AMOVB,
			arm.AMOVH,
			arm.AMOVW,
			arm.AMOVF,
			arm.AMOVD:
			if regtyp(&p.From) {
				if p.From.Type == p.To.Type && isfloatreg(&p.From) == isfloatreg(&p.To) {
					if p.Scond == arm.C_SCOND_NONE {
						if copyprop(g, r) {
							excise(r)
							t++
							break
						}

						if subprop(r) && copyprop(g, r) {
							excise(r)
							t++
							break
						}
					}
				}
			}

		case arm.AMOVHS,
			arm.AMOVHU,
			arm.AMOVBS,
			arm.AMOVBU:
			if p.From.Type == obj.TYPE_REG {
				if shortprop(r) {
					t++
				}
			}
		}
	}

	/*
		if(p->scond == C_SCOND_NONE)
		if(regtyp(&p->to))
		if(isdconst(&p->from)) {
			constprop(&p->from, &p->to, r->s1);
		}
		break;
	*/
	if t != 0 {
		goto loop1
	}

	for r := (*gc.Flow)(g.Start); r != nil; r = r.Link {
		p = r.Prog
		switch p.As {
		/*
		 * EOR -1,x,y => MVN x,y
		 */
		case arm.AEOR:
			if isdconst(&p.From) && p.From.Offset == -1 {
				p.As = arm.AMVN
				p.From.Type = obj.TYPE_REG
				if p.Reg != 0 {
					p.From.Reg = p.Reg
				} else {
					p.From.Reg = p.To.Reg
				}
				p.Reg = 0
			}
		}
	}

//.........這裏部分代碼省略.........

開發者ID:xiezerozero，項目名稱:go，代碼行數:101，代碼來源:peep.go

示例3: peep

func peep(firstp *obj.Prog) {
	g := (*gc.Graph)(gc.Flowstart(firstp, nil))
	if g == nil {
		return
	}
	gactive = 0

	// byte, word arithmetic elimination.
	elimshortmov(g)

	// constant propagation
	// find MOV $con,R followed by
	// another MOV $con,R without
	// setting R in the interim
	var p *obj.Prog
	for r := (*gc.Flow)(g.Start); r != nil; r = r.Link {
		p = r.Prog
		switch p.As {
		case x86.ALEAL,
			x86.ALEAQ:
			if regtyp(&p.To) {
				if p.From.Sym != nil {
					if p.From.Index == x86.REG_NONE {
						conprop(r)
					}
				}
			}

		case x86.AMOVB,
			x86.AMOVW,
			x86.AMOVL,
			x86.AMOVQ,
			x86.AMOVSS,
			x86.AMOVSD:
			if regtyp(&p.To) {
				if p.From.Type == obj.TYPE_CONST || p.From.Type == obj.TYPE_FCONST {
					conprop(r)
				}
			}
		}
	}

	var r *gc.Flow
	var r1 *gc.Flow
	var p1 *obj.Prog
	var t int
loop1:
	if gc.Debug['P'] != 0 && gc.Debug['v'] != 0 {
		gc.Dumpit("loop1", g.Start, 0)
	}

	t = 0
	for r = g.Start; r != nil; r = r.Link {
		p = r.Prog
		switch p.As {
		case x86.AMOVL,
			x86.AMOVQ,
			x86.AMOVSS,
			x86.AMOVSD:
			if regtyp(&p.To) {
				if regtyp(&p.From) {
					if copyprop(g, r) {
						excise(r)
						t++
					} else if subprop(r) && copyprop(g, r) {
						excise(r)
						t++
					}
				}
			}

		case x86.AMOVBLZX,
			x86.AMOVWLZX,
			x86.AMOVBLSX,
			x86.AMOVWLSX:
			if regtyp(&p.To) {
				r1 = rnops(gc.Uniqs(r))
				if r1 != nil {
					p1 = r1.Prog
					if p.As == p1.As && p.To.Type == p1.From.Type && p.To.Reg == p1.From.Reg {
						p1.As = x86.AMOVL
						t++
					}
				}
			}

		case x86.AMOVBQSX,
			x86.AMOVBQZX,
			x86.AMOVWQSX,
			x86.AMOVWQZX,
			x86.AMOVLQSX,
			x86.AMOVLQZX,
			x86.AMOVQL:
			if regtyp(&p.To) {
				r1 = rnops(gc.Uniqs(r))
				if r1 != nil {
					p1 = r1.Prog
					if p.As == p1.As && p.To.Type == p1.From.Type && p.To.Reg == p1.From.Reg {
						p1.As = x86.AMOVQ
						t++
//.........這裏部分代碼省略.........

開發者ID:danny8002，項目名稱:go，代碼行數:101，代碼來源:peep.go

示例4: peep

func peep(firstp *obj.Prog) {
	g := (*gc.Graph)(gc.Flowstart(firstp, nil))
	if g == nil {
		return
	}
	gactive = 0

	var p *obj.Prog
	var r *gc.Flow
	var t int
loop1:
	if gc.Debug['P'] != 0 && gc.Debug['v'] != 0 {
		gc.Dumpit("loop1", g.Start, 0)
	}

	t = 0
	for r = g.Start; r != nil; r = r.Link {
		p = r.Prog

		// TODO(austin) Handle smaller moves.  arm and amd64
		// distinguish between moves that moves that *must*
		// sign/zero extend and moves that don't care so they
		// can eliminate moves that don't care without
		// breaking moves that do care.  This might let us
		// simplify or remove the next peep loop, too.
		if p.As == mips.AMOVV || p.As == mips.AMOVF || p.As == mips.AMOVD {
			if regtyp(&p.To) {
				// Try to eliminate reg->reg moves
				if regtyp(&p.From) {
					if isfreg(&p.From) == isfreg(&p.To) {
						if copyprop(r) {
							excise(r)
							t++
						} else if subprop(r) && copyprop(r) {
							excise(r)
							t++
						}
					}
				}

				// Convert uses to $0 to uses of R0 and
				// propagate R0
				if regzer(&p.From) != 0 {
					if p.To.Type == obj.TYPE_REG && !isfreg(&p.To) {
						p.From.Type = obj.TYPE_REG
						p.From.Reg = mips.REGZERO
						if copyprop(r) {
							excise(r)
							t++
						} else if subprop(r) && copyprop(r) {
							excise(r)
							t++
						}
					}
				}
			}
		}
	}

	if t != 0 {
		goto loop1
	}

	/*
	 * look for MOVB x,R; MOVB R,R (for small MOVs not handled above)
	 */
	var p1 *obj.Prog
	var r1 *gc.Flow
	for r := (*gc.Flow)(g.Start); r != nil; r = r.Link {
		p = r.Prog
		switch p.As {
		default:
			continue

		case mips.AMOVH,
			mips.AMOVHU,
			mips.AMOVB,
			mips.AMOVBU,
			mips.AMOVW,
			mips.AMOVWU:
			if p.To.Type != obj.TYPE_REG {
				continue
			}
		}

		r1 = r.Link
		if r1 == nil {
			continue
		}
		p1 = r1.Prog
		if p1.As != p.As {
			continue
		}
		if p1.From.Type != obj.TYPE_REG || p1.From.Reg != p.To.Reg {
			continue
		}
		if p1.To.Type != obj.TYPE_REG || p1.To.Reg != p.To.Reg {
			continue
		}
		excise(r1)
//.........這裏部分代碼省略.........

開發者ID:ckeyer，項目名稱:gosrc，代碼行數:101，代碼來源:peep.go

示例5: peep

func peep(firstp *obj.Prog) {
	g := gc.Flowstart(firstp, nil)
	if g == nil {
		return
	}
	gactive = 0

	// byte, word arithmetic elimination.
	elimshortmov(g)

	// constant propagation
	// find MOV $con,R followed by
	// another MOV $con,R without
	// setting R in the interim
	var p *obj.Prog
	for r := g.Start; r != nil; r = r.Link {
		p = r.Prog
		switch p.As {
		case x86.ALEAL:
			if regtyp(&p.To) {
				if p.From.Sym != nil {
					if p.From.Index == x86.REG_NONE {
						conprop(r)
					}
				}
			}

		case x86.AMOVB,
			x86.AMOVW,
			x86.AMOVL,
			x86.AMOVSS,
			x86.AMOVSD:
			if regtyp(&p.To) {
				if p.From.Type == obj.TYPE_CONST || p.From.Type == obj.TYPE_FCONST {
					conprop(r)
				}
			}
		}
	}

	var r1 *gc.Flow
	var p1 *obj.Prog
	var r *gc.Flow
	var t int
loop1:
	if gc.Debug['P'] != 0 && gc.Debug['v'] != 0 {
		gc.Dumpit("loop1", g.Start, 0)
	}

	t = 0
	for r = g.Start; r != nil; r = r.Link {
		p = r.Prog
		switch p.As {
		case x86.AMOVL,
			x86.AMOVSS,
			x86.AMOVSD:
			if regtyp(&p.To) {
				if regtyp(&p.From) {
					if copyprop(g, r) {
						excise(r)
						t++
					} else if subprop(r) && copyprop(g, r) {
						excise(r)
						t++
					}
				}
			}

		case x86.AMOVBLZX,
			x86.AMOVWLZX,
			x86.AMOVBLSX,
			x86.AMOVWLSX:
			if regtyp(&p.To) {
				r1 = rnops(gc.Uniqs(r))
				if r1 != nil {
					p1 = r1.Prog
					if p.As == p1.As && p.To.Type == p1.From.Type && p.To.Reg == p1.From.Reg {
						p1.As = x86.AMOVL
						t++
					}
				}
			}

		case x86.AADDL,
			x86.AADDW:
			if p.From.Type != obj.TYPE_CONST || needc(p.Link) {
				break
			}
			if p.From.Offset == -1 {
				if p.As == x86.AADDL {
					p.As = x86.ADECL
				} else {
					p.As = x86.ADECW
				}
				p.From = obj.Addr{}
				break
			}

			if p.From.Offset == 1 {
				if p.As == x86.AADDL {
//.........這裏部分代碼省略.........

開發者ID:sreis，項目名稱:go，代碼行數:101，代碼來源:peep.go

示例6: peep

func peep(firstp *obj.Prog) {
	g := gc.Flowstart(firstp, nil)
	if g == nil {
		return
	}
	gactive = 0

	var p *obj.Prog
	var r *gc.Flow
	var t int
loop1:
	if gc.Debug['P'] != 0 && gc.Debug['v'] != 0 {
		gc.Dumpit("loop1", g.Start, 0)
	}

	t = 0
	for r = g.Start; r != nil; r = r.Link {
		p = r.Prog

		// TODO(minux) Handle smaller moves. arm and amd64
		// distinguish between moves that *must* sign/zero
		// extend and moves that don't care so they
		// can eliminate moves that don't care without
		// breaking moves that do care. This might let us
		// simplify or remove the next peep loop, too.
		if p.As == arm64.AMOVD || p.As == arm64.AFMOVD {
			if regtyp(&p.To) {
				// Try to eliminate reg->reg moves
				if regtyp(&p.From) {
					if p.From.Type == p.To.Type {
						if copyprop(r) {
							excise(r)
							t++
						} else if subprop(r) && copyprop(r) {
							excise(r)
							t++
						}
					}
				}
			}
		}
	}

	if t != 0 {
		goto loop1
	}

	/*
	 * look for MOVB x,R; MOVB R,R (for small MOVs not handled above)
	 */
	var p1 *obj.Prog
	var r1 *gc.Flow
	for r := g.Start; r != nil; r = r.Link {
		p = r.Prog
		switch p.As {
		default:
			continue

		case arm64.AMOVH,
			arm64.AMOVHU,
			arm64.AMOVB,
			arm64.AMOVBU,
			arm64.AMOVW,
			arm64.AMOVWU:
			if p.To.Type != obj.TYPE_REG {
				continue
			}
		}

		r1 = r.Link
		if r1 == nil {
			continue
		}
		p1 = r1.Prog
		if p1.As != p.As {
			continue
		}
		if p1.From.Type != obj.TYPE_REG || p1.From.Reg != p.To.Reg {
			continue
		}
		if p1.To.Type != obj.TYPE_REG || p1.To.Reg != p.To.Reg {
			continue
		}
		excise(r1)
	}

	if gc.Debug['D'] > 1 {
		goto ret /* allow following code improvement to be suppressed */
	}

	// MOVD $c, R'; ADD R', R (R' unused) -> ADD $c, R
	for r := g.Start; r != nil; r = r.Link {
		p = r.Prog
		switch p.As {
		default:
			continue

		case arm64.AMOVD:
			if p.To.Type != obj.TYPE_REG {
				continue
//.........這裏部分代碼省略.........

開發者ID:duhaibo0404，項目名稱:go-1，代碼行數:101，代碼來源:peep.go

示例7: peep

func peep(firstp *obj.Prog) {
	g := (*gc.Graph)(gc.Flowstart(firstp, nil))
	if g == nil {
		return
	}
	gactive = 0

	var p *obj.Prog

	if false {
		// constant propagation
		// find MOV $con,R followed by
		// another MOV $con,R without
		// setting R in the interim
		for r := (*gc.Flow)(g.Start); r != nil; r = r.Link {
			p = r.Prog
			switch p.As {
			case s390x.AMOVB,
				s390x.AMOVW,
				s390x.AMOVD:
				if regtyp(&p.To) {
					if p.From.Type == obj.TYPE_CONST || p.From.Type == obj.TYPE_FCONST {
						conprop(r)
					}
				}
			}
		}
	}

	var r *gc.Flow
	var t int
loop1:
	//	if gc.Debug['P'] != 0 && gc.Debug['v'] != 0 {
	//		gc.Dumpit("loop1", g.Start, 0)
	//	}

	t = 0
	for r = g.Start; r != nil; r = r.Link {
		p = r.Prog

		// TODO(austin) Handle smaller moves.  arm and amd64
		// distinguish between moves that moves that *must*
		// sign/zero extend and moves that don't care so they
		// can eliminate moves that don't care without
		// breaking moves that do care.  This might let us
		// simplify or remove the next peep loop, too.
		if p.As == s390x.AMOVD || p.As == s390x.AFMOVD {
			if regtyp(&p.To) {
				// Try to eliminate reg->reg moves
				if regtyp(&p.From) {
					if p.From.Type == p.To.Type {
						if copyprop(r) {
							excise(r)
							t++
						} else if subprop(r) && copyprop(r) {
							excise(r)
							t++
						}
					}
				}

				// Convert uses to $0 to uses of R0 and
				// propagate R0
				if regzer(&p.From) != 0 {
					if p.To.Type == obj.TYPE_REG {
						p.From.Type = obj.TYPE_REG
						p.From.Reg = s390x.REGZERO
						if copyprop(r) {
							excise(r)
							t++
						} else if subprop(r) && copyprop(r) {
							excise(r)
							t++
						}
					}
				}
			}
		}
	}

	if t != 0 {
		goto loop1
	}

	if gc.Debug['P'] != 0 && gc.Debug['v'] != 0 {
		gc.Dumpit("pass7 copyprop", g.Start, 0)
	}

	/*
	 * look for MOVB x,R; MOVB R,R (for small MOVs not handled above)
	 */
	var p1 *obj.Prog
	var r1 *gc.Flow
	for r := (*gc.Flow)(g.Start); r != nil; r = r.Link {
		p = r.Prog
		switch p.As {
		default:
			continue

		case s390x.AMOVH,
//.........這裏部分代碼省略.........

開發者ID:wycharry，項目名稱:go，代碼行數:101，代碼來源:peep.go

注：本文中的cmd/compile/internal/gc.Dumpit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。